Burundi, a landlocked country locked near the equator, is one of the least developed countries confirmed by the United Nations and the 60% financial revenue needs aid. Rice is the most important and extravagant food i...Burundi, a landlocked country locked near the equator, is one of the least developed countries confirmed by the United Nations and the 60% financial revenue needs aid. Rice is the most important and extravagant food in Burundian consumption for no more than 5 kg on average per people by year. It's especially suitable to plant rice in Burundi because of the sufficient sunlight and rain. But the lack of new varieties, practical technology and modern service make it very difficult for rice production. According to this significant roll, the rice production has to be increased in order to satisfy the consumption needs which are now becoming higher and keep the food safe. This article mainly shows the rice ecological types, production facts and the major constraints of rice production in Burundi, and then look into the distance on how to solve the problems.展开更多
[Objective] This paper analyzed present status of broomcorn millet produc- tion in China, including cultivation methods, fertilization utilization, diseases, insect pests and disasters, machinery development, planting...[Objective] This paper analyzed present status of broomcorn millet produc- tion in China, including cultivation methods, fertilization utilization, diseases, insect pests and disasters, machinery development, planting benefit and other aspects. [Method] The corn millet data reported by China Industrial and Technological Re- search System of Millet in 2011 were analyzed by descriptive statistical analysis of EXCEL. [Result] The results show that 17 678.57 kg/ha of farm manure, 155.77 kg/ha of urea, 259.5 kg/ha of compound fertilizer, 203.13 kg/ha of phosphate fertilizer and 75 kg/ha of potash fertilizer were used in China; the national mechanization degree of broomcorn millet production is lower than 30% in all; the average income of broomcorn millet production is 10 503.33 yuan/ha, and the VCR is 2.64; most broomcorn millet producing areas are affected by mild pests and diseases, very few are affected by mild and moderate pests and diseases, and the impact of natural disasters is the lightest. [~onclusien] Currently fertilizer utilization for broomcorn millet is proper but the mechanization level and planting benefit are low, natural disasters, pests and diseases are not severe; finally the authors proposed some suggestions on the fertilizer utilization, mechanization production, benefit increasing, disaster warning, disease and insect controlling and government policy-making for broomcorn millet production.展开更多
Biogas fertilizer is widely used in agricultural production,and it can be used in a variety of ways,including liquid spraying,root fertilization,presoaking and biological pesticides,etc.It can improve soil structure,i...Biogas fertilizer is widely used in agricultural production,and it can be used in a variety of ways,including liquid spraying,root fertilization,presoaking and biological pesticides,etc.It can improve soil structure,increase the content of soil organic matter and available nutrients,and increase crop yield.In addition,there are some problems in the utilization of biogas fertilizer.Some details that need to be paid attention to and can not be ignored should be further studied and discussed to achieve a final principle of harmonious,safe and efficient use,so as to ensure the benefit maximization of biogas fertilizer as an economic fertilizer source.Therefore,this paper summarizes the main ways and methods,existing problems and corresponding development measures concerning the application of biogas fertilizer in agriculture,in order to provide some reference for the utilization of biogas fertilizer in the field of agriculture and make it universal,safe and stable.展开更多
1 Production and Running Status of China's Refractories Industry in 2013 1.1 Refractories Output In 2013, China' s refractories output was 29. 283 million tons increasing by 3.88% YOY; in which the outputs of den...1 Production and Running Status of China's Refractories Industry in 2013 1.1 Refractories Output In 2013, China' s refractories output was 29. 283 million tons increasing by 3.88% YOY; in which the outputs of dense shaped refractory products, insulating refractory products, monolithic refractories were 17.307 million tons increasing by 5.93% YOY, 557.3 thousand tons decreasing by 2.67% YOY and 11. 418 million tons increasing by 1.24% YOY, respectively.展开更多
In the study,the connotation and objectives of agricultural cleaner production were introduced firstly,and then the development status of agricultural cleaner production in China was analyzed,and the problems existing...In the study,the connotation and objectives of agricultural cleaner production were introduced firstly,and then the development status of agricultural cleaner production in China was analyzed,and the problems existing in the development of agricultural cleaner production were pointed out.From the strategy of agricultural sustainable development,the necessity and feasibility of implementing agricultural cleaner production in China were discussed.Finally,some related countermeasures were put forward according to the problems existing in the development of agricultural cleaner production,so as to provide theoretical references for the realization of agricultural sustainable development in China.展开更多
1 Production and Running Status of China's Refractories Industry in 20121.1 Refractories Output In 2012 China' s refractories output was 28. 189 million tons decreasing by 4.43% YOY: in which the outpt, ts of (len...1 Production and Running Status of China's Refractories Industry in 20121.1 Refractories Output In 2012 China' s refractories output was 28. 189 million tons decreasing by 4.43% YOY: in which the outpt, ts of (lense shaped refractory products, insulating refractory products,展开更多
In the first half of 2019, the output and business income of rare earth raw materials of China Northern Rare Earths reached an all-time high, achieving the goal of "more than half of the time and more than half o...In the first half of 2019, the output and business income of rare earth raw materials of China Northern Rare Earths reached an all-time high, achieving the goal of "more than half of the time and more than half of the task", laying a solid foundation for the completion of the company's annual task goal.展开更多
[Objective] The aim was to make analysis on natural condition,present situation,and potential of rice production development in Angola.[Method] Conclusion and analysis of rice development in Angola were conducted from...[Objective] The aim was to make analysis on natural condition,present situation,and potential of rice production development in Angola.[Method] Conclusion and analysis of rice development in Angola were conducted from natural condition,production status,present problem and development potential.[Result] In Angola,about 30 million hectares agricultural lands enjoy fresh water,temperature,and light resources which are requirement for rice development.Presently,however,some disadvantages have harassed the nation,such as outdated production mode and technology,small cultivated area and low level of per unit yield.In addition,about 98% of consumed rice was imported from other countries.The government has attached high importance to food production,and rice production was a priority of national investment.Per unit rice yield would achieve 7 500 kg/hm2 if Angola introduces hybrid rice species and high-yield cultivation techniques from China.[Conclusion] The research provided technical reference for enterprises or individuals ready to invest in rice development in Angola.展开更多
This study investigates the statistical relationship between climatic variables and aspects of cotton production (G. barbadense), and the effects of climatic factors prevailing prior to flowering or subsequent to boll...This study investigates the statistical relationship between climatic variables and aspects of cotton production (G. barbadense), and the effects of climatic factors prevailing prior to flowering or subsequent to boll setting on flower and boll production and retention in cotton. The effects of specific climatic factors during both pre-?and post-anthesis periods on boll production and retention are mostly unknown. However, by determining the relationship of climatic factors with flower and boll production and retention, the overall level of production can be possibly predicted. Thus, an understanding of these relationships may help physiologists determine control mechanisms of production in cotton plants. Also, the study covers the predicted effects of climatic factors during convenient intervals (in days) on cotton flower and boll production compared with daily observations. Further, cotton flower and boll production as affected by climatic factors and soil moisture status has been considered. Evaporation, sunshine duration, relative humidity, surface soil temperature at 1800 h, and maximum air temperature, are the important climatic factors that significantly affect flower and boll production. The least important variables were found to be surface soil temperature at 600 h and minimum temperature. The five-day interval was found to be more adequately and sensibly related to yield parameters. Evaporation, minimum humidity and sunshine duration were the most effective climatic factors during preceding and succeeding periods on boll production and retention. There was a negative correlation between flower number and boll production and either evaporation or sunshine duration, while that correlation with minimum relative humidity was positive. The soil moisture status showed low and insignificant correlation with flower and boll production. Higher minimum relative humidity, short period of sunshine duration, and low temperatures enhanced flower and boll formation.展开更多
Wetlands have immense poverty-fighting potentials and in Nigeria, more and more people are dependent on wetlands for their livelihoods. To examine the social factors affecting the current status of the wetlands utiliz...Wetlands have immense poverty-fighting potentials and in Nigeria, more and more people are dependent on wetlands for their livelihoods. To examine the social factors affecting the current status of the wetlands utilization for agriculture in Nigeda, a simple random sampling technique was used to select 200 farmers cultivating wetlands and a structured questionnaire was applied to elicit the information on the social factors. Data collected were described using frequency and percentage and a multiple regression analysis was used to identify significant variables that are determinants of wetland utilization. The results of the analysis showed that significant variables included crop preferences, farming system, culture, taste, land tenure, knowledge of wetland cultivation, perceived suitability, farmers' tribe, location of wetland, and farmers' age. it was concluded with suggestions for the right combination of policies, public awareness, and appropriate farming methods in order to improve wetland utilization in Nigeria.展开更多
Cost-benefit analysis and breakeven point were used to analyze the production cost and economic benefit of tilapia pond monoculture and polyculture.From the aspects of tilapia production and economic benefit,this pape...Cost-benefit analysis and breakeven point were used to analyze the production cost and economic benefit of tilapia pond monoculture and polyculture.From the aspects of tilapia production and economic benefit,this paper summarized the current production status and the characteristics of tilapia industry development and analyzed its developing trend.The results indicated that feed cost,pond rates and labor cost are the main production costs,and the production cost of polyculture is significantly lower than that of monoculture.Through comparative analysis,it is proposed that the tilapia industry should be reasonably guided to the intensive,standardized and pollution-free direction.Specifically,it is necessary to improve the coverage of improved varieties,strengthen disease prevention and control and promote the healthy farming model of tilapia.We also should strengthen the training of tilapia production techniques and the quality and safety testing of tilapia products,and accelerate the development of tilapia industrialization,so as to promote the sustainable and healthy development of tilapia industry.展开更多
China has had 30 years experience in titanium research,development,production and appli-cation so far.It was really a rough and bumpy road for developing Ti working industry,however,since a large amount of work was do...China has had 30 years experience in titanium research,development,production and appli-cation so far.It was really a rough and bumpy road for developing Ti working industry,however,since a large amount of work was done and great many achievements were obtained by the scien-tists and engineers in this field,a firm base of Ti working industry has been established in China atlast.Especially since the beginning of 1980 s,it has been developed to a new level.On these bases,afavourable condition to speed up the development of Ti working industry arises in China.展开更多
Khat, Ethiopia’s largest export cash crop, is the backbone of the Ethiopian economy. However, Ethiopia has not yet fully promoted its position as the utmost producer and exporter of khat in a global market because of...Khat, Ethiopia’s largest export cash crop, is the backbone of the Ethiopian economy. However, Ethiopia has not yet fully promoted its position as the utmost producer and exporter of khat in a global market because of its different policy discourses and illegal trade issues on khat production. The life of many smallholder households relies on khat production and its marketing in a country. Hence for thus, some information has been gathered on different aspects of khat with the objectives of reviewing khat’s impacts on the livelihood of smallholder farmers, its production status, and marketing constraints in Ethiopia. To review these objectives, data from CSA, and different published materials on khat were used. According to the review, khat production has a positive impact on securing household food insecurity and improving the livelihood status of smallholder farmers, and the largest foreign exchange-earning cash crops. However, it is exploited almost in all parts of a country’s government policy discourse on khat production and its trade legal issues, lack of infrastructure, zero access to extension services, zero tangible value addition, inadequate technology transfer, and research, and price volatility because of product perishability behavior are among major constraints threatened in khat production in Ethiopia. Its vulnerable and corrupted marketing system, zero market promotion and political dichotomy, long market chain, chronic market information, and unfair price were reported by different scholars as major problems of khat marketing in Ethiopia. From these probs: The government should analyze why and its impact on khat production discourse policy on the livelihood of smallholder households and overlook positive policy proclamation. Encouraging research and technology transfer to transform products into manufacturing industries, enhancing infrastructural and institutional facilities, and improving khat production product technologies through development, and khat production agribusiness industry transformation, institutionalizing its marketing arrangement and other related agronomic practices are among the major recommendations to forward so.展开更多
China is the largest producer and trader of aquatic products in the world, but does not mean that it belongs to the strongest power group of aquatic production and trade. This paper objectively analyzed the main probl...China is the largest producer and trader of aquatic products in the world, but does not mean that it belongs to the strongest power group of aquatic production and trade. This paper objectively analyzed the main problems existing in the highspeed development of China's aquatic product industry by empirical analysis. For example, the situation of quality and safety of aquatic products is serious now; the basic conditions of aquaculture lag behind the production development; aquatic industry is still in a low level of development and organization; and the quality and safety of aquatic products is the most main problem. This paper also revealed that fish would be the main source of animal-derived food, and the demand of characteristic aquatic products would continuously go up. Aquatic processing has initially formed a standard system. It drew a conclusion that it would be a good opportunity for China's aquatic processing industry in the future展开更多
BACKGROUND The established cardiovascular risk factors cannot explain the overall risk of coronary artery disease(CAD),especially in women.Therefore,there is a growing need for the assessment of novel biomarkers to id...BACKGROUND The established cardiovascular risk factors cannot explain the overall risk of coronary artery disease(CAD),especially in women.Therefore,there is a growing need for the assessment of novel biomarkers to identify women at risk.The receptor for advanced glycation end products(RAGE)and its interaction with the advanced glycation end product(AGE)ligand have been associated with atherogenesis.The soluble fraction of RAGE(sRAGE)antagonizes RAGE signaling and exerts an antiatherogenic effect.AIM The study aim was to explore the association between plasma levels of sRAGE and CAD in nondiabetic postmenopausal women.METHODS This case-control study included 110 nondiabetic postmenopausal women who were enrolled in two groups.Group I included 55 angiographically proven CAD subjects with>50%stenosis in at least one of the major coronary arteries and Group II included 55 healthy control women who did not have CAD or had<50%stenosis of the coronary arteries.Stenosis was confirmed by invasive angiography.Plasma sRAGE was determined by an enzyme-linked immunosorbent assay.RESULTS We observed significantly lower plasma sRAGE concentrations in subjects with CAD vs healthy controls(P<0.05).Univariate and multivariate logistic regression analysis also revealed a significant correlation between plasma sRAGE levels and CAD(P=0.01).Multivariate odds ratios for CAD revealed that subjects with sRAGE concentrations below 225 pg/mL(lowest quartile)had a 6-fold increase in CAD prevalence independent of other risk factors.CONCLUSION Our findings indicated that low sRAGE levels were independently associated with CAD in nondiabetic postmenopausal women.Risk assessment of CAD in postmenopausal women can be improved by including sRAGE along with other risk factors.展开更多
This study examined the impact of farmers' health on labor data was collected through a field survey of 290 rural households productivity of female farmers in Imo State, Nigeria. Primary Descriptive statistics and es...This study examined the impact of farmers' health on labor data was collected through a field survey of 290 rural households productivity of female farmers in Imo State, Nigeria. Primary Descriptive statistics and estimation of efficiency following maximum likelihood estimation (MLE) procedure available in Frontier 4.1 were used to analyze the data. Results from the analyses showed that malaria has the highest prevalence level among female farmers in the study area followed by typhoid fever. The causes of sicknesses vary from cold, stress, mosquito bites and bad drinking water. Furthermore, the results showed that sicknesses affect the productivity of farmers by reducing their work capacity. Also, the distance to source of drinking water from home, source of drinking water, age, body mass index of farmers are also found to significantly affect the physical work output of farmers in the study area. The result shows that the distribution of farmers was highly skewed with about 99% of the farmers having their efficiency above 0.61. This indicates that majority of the farmers are technically efficient in the allocation of resources to crop production, The result also shows that the average efficiency was about 82.9%. Thus, the farmers' level of efficiency can be improved if there is a shift in the fi'ontier, i.e. if factors contributing to inefficiency are adequately controlled. The study recommends the need to invest more on human capital especially health for there to be an improvement in rural productivity. Also, rural development policies should include health policies especially for women since it has a great influence on the household and emphasis should also be on preventive rather than curative health services.展开更多
Source: MIIT In June 2019, automobile production and sales continued to decline year-on-year, but the decline was narrower than the prebvious month.1. Car sales in June fell 9.6 percent from a year earlier In June, au...Source: MIIT In June 2019, automobile production and sales continued to decline year-on-year, but the decline was narrower than the prebvious month.1. Car sales in June fell 9.6 percent from a year earlier In June, automobile production and sales reached 1.895 million and 2.056 million, respectively, down 17.3 percent and 9.6 percent year-on-year, respectively.展开更多
This paper clarifies thestatus of Chinese agricultural product trade through the calculation of Chinese agricultural product trade competitive advantage index for a total of 21 years from 1999 to 2019.
According to statistics, there are more than 50 manufacturers of auto steering gear in China now, most of which are of annual output below 10,000 units. In 1993, the national total output of various kinds of steering ...According to statistics, there are more than 50 manufacturers of auto steering gear in China now, most of which are of annual output below 10,000 units. In 1993, the national total output of various kinds of steering gear is about 1,400000 units. There are six major ones among all these manufacturers.展开更多
基金The Aid Project on Science and Technology to the Developing Countries from the Ministry of Science and Technology of the PRC:Research Cooperation for key technologies to improve food production in Africa,Guangxi Scientific Research and Technology Development Project(No.10100020-1,1346009-4,14125007-2-7)Fundamental Research Funds for the GXAAS(2014YZ38)~~
文摘Burundi, a landlocked country locked near the equator, is one of the least developed countries confirmed by the United Nations and the 60% financial revenue needs aid. Rice is the most important and extravagant food in Burundian consumption for no more than 5 kg on average per people by year. It's especially suitable to plant rice in Burundi because of the sufficient sunlight and rain. But the lack of new varieties, practical technology and modern service make it very difficult for rice production. According to this significant roll, the rice production has to be increased in order to satisfy the consumption needs which are now becoming higher and keep the food safe. This article mainly shows the rice ecological types, production facts and the major constraints of rice production in Burundi, and then look into the distance on how to solve the problems.
基金Supported by Special Fund for Construction of Modern Agricultural Technology System(CARS-07-12.5-A18)~~
文摘[Objective] This paper analyzed present status of broomcorn millet produc- tion in China, including cultivation methods, fertilization utilization, diseases, insect pests and disasters, machinery development, planting benefit and other aspects. [Method] The corn millet data reported by China Industrial and Technological Re- search System of Millet in 2011 were analyzed by descriptive statistical analysis of EXCEL. [Result] The results show that 17 678.57 kg/ha of farm manure, 155.77 kg/ha of urea, 259.5 kg/ha of compound fertilizer, 203.13 kg/ha of phosphate fertilizer and 75 kg/ha of potash fertilizer were used in China; the national mechanization degree of broomcorn millet production is lower than 30% in all; the average income of broomcorn millet production is 10 503.33 yuan/ha, and the VCR is 2.64; most broomcorn millet producing areas are affected by mild pests and diseases, very few are affected by mild and moderate pests and diseases, and the impact of natural disasters is the lightest. [~onclusien] Currently fertilizer utilization for broomcorn millet is proper but the mechanization level and planting benefit are low, natural disasters, pests and diseases are not severe; finally the authors proposed some suggestions on the fertilizer utilization, mechanization production, benefit increasing, disaster warning, disease and insect controlling and government policy-making for broomcorn millet production.
文摘Biogas fertilizer is widely used in agricultural production,and it can be used in a variety of ways,including liquid spraying,root fertilization,presoaking and biological pesticides,etc.It can improve soil structure,increase the content of soil organic matter and available nutrients,and increase crop yield.In addition,there are some problems in the utilization of biogas fertilizer.Some details that need to be paid attention to and can not be ignored should be further studied and discussed to achieve a final principle of harmonious,safe and efficient use,so as to ensure the benefit maximization of biogas fertilizer as an economic fertilizer source.Therefore,this paper summarizes the main ways and methods,existing problems and corresponding development measures concerning the application of biogas fertilizer in agriculture,in order to provide some reference for the utilization of biogas fertilizer in the field of agriculture and make it universal,safe and stable.
文摘1 Production and Running Status of China's Refractories Industry in 2013 1.1 Refractories Output In 2013, China' s refractories output was 29. 283 million tons increasing by 3.88% YOY; in which the outputs of dense shaped refractory products, insulating refractory products, monolithic refractories were 17.307 million tons increasing by 5.93% YOY, 557.3 thousand tons decreasing by 2.67% YOY and 11. 418 million tons increasing by 1.24% YOY, respectively.
基金Supported by Natural Science Foundation of Hainan Province (40879)Key Subject "Cartography and Geographic Information System"and "Natural Geography" of Hainan Normal University
文摘In the study,the connotation and objectives of agricultural cleaner production were introduced firstly,and then the development status of agricultural cleaner production in China was analyzed,and the problems existing in the development of agricultural cleaner production were pointed out.From the strategy of agricultural sustainable development,the necessity and feasibility of implementing agricultural cleaner production in China were discussed.Finally,some related countermeasures were put forward according to the problems existing in the development of agricultural cleaner production,so as to provide theoretical references for the realization of agricultural sustainable development in China.
文摘1 Production and Running Status of China's Refractories Industry in 20121.1 Refractories Output In 2012 China' s refractories output was 28. 189 million tons decreasing by 4.43% YOY: in which the outpt, ts of (lense shaped refractory products, insulating refractory products,
文摘In the first half of 2019, the output and business income of rare earth raw materials of China Northern Rare Earths reached an all-time high, achieving the goal of "more than half of the time and more than half of the task", laying a solid foundation for the completion of the company's annual task goal.
基金Supportd by Science and Technology Cooperation Project of Anhui Science and Technology Department (11030603031)~~
文摘[Objective] The aim was to make analysis on natural condition,present situation,and potential of rice production development in Angola.[Method] Conclusion and analysis of rice development in Angola were conducted from natural condition,production status,present problem and development potential.[Result] In Angola,about 30 million hectares agricultural lands enjoy fresh water,temperature,and light resources which are requirement for rice development.Presently,however,some disadvantages have harassed the nation,such as outdated production mode and technology,small cultivated area and low level of per unit yield.In addition,about 98% of consumed rice was imported from other countries.The government has attached high importance to food production,and rice production was a priority of national investment.Per unit rice yield would achieve 7 500 kg/hm2 if Angola introduces hybrid rice species and high-yield cultivation techniques from China.[Conclusion] The research provided technical reference for enterprises or individuals ready to invest in rice development in Angola.
文摘This study investigates the statistical relationship between climatic variables and aspects of cotton production (G. barbadense), and the effects of climatic factors prevailing prior to flowering or subsequent to boll setting on flower and boll production and retention in cotton. The effects of specific climatic factors during both pre-?and post-anthesis periods on boll production and retention are mostly unknown. However, by determining the relationship of climatic factors with flower and boll production and retention, the overall level of production can be possibly predicted. Thus, an understanding of these relationships may help physiologists determine control mechanisms of production in cotton plants. Also, the study covers the predicted effects of climatic factors during convenient intervals (in days) on cotton flower and boll production compared with daily observations. Further, cotton flower and boll production as affected by climatic factors and soil moisture status has been considered. Evaporation, sunshine duration, relative humidity, surface soil temperature at 1800 h, and maximum air temperature, are the important climatic factors that significantly affect flower and boll production. The least important variables were found to be surface soil temperature at 600 h and minimum temperature. The five-day interval was found to be more adequately and sensibly related to yield parameters. Evaporation, minimum humidity and sunshine duration were the most effective climatic factors during preceding and succeeding periods on boll production and retention. There was a negative correlation between flower number and boll production and either evaporation or sunshine duration, while that correlation with minimum relative humidity was positive. The soil moisture status showed low and insignificant correlation with flower and boll production. Higher minimum relative humidity, short period of sunshine duration, and low temperatures enhanced flower and boll formation.
文摘Wetlands have immense poverty-fighting potentials and in Nigeria, more and more people are dependent on wetlands for their livelihoods. To examine the social factors affecting the current status of the wetlands utilization for agriculture in Nigeda, a simple random sampling technique was used to select 200 farmers cultivating wetlands and a structured questionnaire was applied to elicit the information on the social factors. Data collected were described using frequency and percentage and a multiple regression analysis was used to identify significant variables that are determinants of wetland utilization. The results of the analysis showed that significant variables included crop preferences, farming system, culture, taste, land tenure, knowledge of wetland cultivation, perceived suitability, farmers' tribe, location of wetland, and farmers' age. it was concluded with suggestions for the right combination of policies, public awareness, and appropriate farming methods in order to improve wetland utilization in Nigeria.
基金Supported by the 2018 Guangxi Young and Middle-aged Teachers’Basic Ability Improvement Project(2018KY0612)the Independent Research Project of Guangxi Key Laboratory Beibu Gulf Marine Biodiversity Conservation(2018ZB05)+2 种基金High-level Talent Research Start-up Project of Qinzhou University(2017KYQD215)2018 Guangxi Higher Education Reform Project(2018JGB334)Special Fund for Specially-invited Experts in Guangxi
文摘Cost-benefit analysis and breakeven point were used to analyze the production cost and economic benefit of tilapia pond monoculture and polyculture.From the aspects of tilapia production and economic benefit,this paper summarized the current production status and the characteristics of tilapia industry development and analyzed its developing trend.The results indicated that feed cost,pond rates and labor cost are the main production costs,and the production cost of polyculture is significantly lower than that of monoculture.Through comparative analysis,it is proposed that the tilapia industry should be reasonably guided to the intensive,standardized and pollution-free direction.Specifically,it is necessary to improve the coverage of improved varieties,strengthen disease prevention and control and promote the healthy farming model of tilapia.We also should strengthen the training of tilapia production techniques and the quality and safety testing of tilapia products,and accelerate the development of tilapia industrialization,so as to promote the sustainable and healthy development of tilapia industry.
文摘China has had 30 years experience in titanium research,development,production and appli-cation so far.It was really a rough and bumpy road for developing Ti working industry,however,since a large amount of work was done and great many achievements were obtained by the scien-tists and engineers in this field,a firm base of Ti working industry has been established in China atlast.Especially since the beginning of 1980 s,it has been developed to a new level.On these bases,afavourable condition to speed up the development of Ti working industry arises in China.
文摘Khat, Ethiopia’s largest export cash crop, is the backbone of the Ethiopian economy. However, Ethiopia has not yet fully promoted its position as the utmost producer and exporter of khat in a global market because of its different policy discourses and illegal trade issues on khat production. The life of many smallholder households relies on khat production and its marketing in a country. Hence for thus, some information has been gathered on different aspects of khat with the objectives of reviewing khat’s impacts on the livelihood of smallholder farmers, its production status, and marketing constraints in Ethiopia. To review these objectives, data from CSA, and different published materials on khat were used. According to the review, khat production has a positive impact on securing household food insecurity and improving the livelihood status of smallholder farmers, and the largest foreign exchange-earning cash crops. However, it is exploited almost in all parts of a country’s government policy discourse on khat production and its trade legal issues, lack of infrastructure, zero access to extension services, zero tangible value addition, inadequate technology transfer, and research, and price volatility because of product perishability behavior are among major constraints threatened in khat production in Ethiopia. Its vulnerable and corrupted marketing system, zero market promotion and political dichotomy, long market chain, chronic market information, and unfair price were reported by different scholars as major problems of khat marketing in Ethiopia. From these probs: The government should analyze why and its impact on khat production discourse policy on the livelihood of smallholder households and overlook positive policy proclamation. Encouraging research and technology transfer to transform products into manufacturing industries, enhancing infrastructural and institutional facilities, and improving khat production product technologies through development, and khat production agribusiness industry transformation, institutionalizing its marketing arrangement and other related agronomic practices are among the major recommendations to forward so.
基金Supported by Ministry of Education in China (10YJC790240)
文摘China is the largest producer and trader of aquatic products in the world, but does not mean that it belongs to the strongest power group of aquatic production and trade. This paper objectively analyzed the main problems existing in the highspeed development of China's aquatic product industry by empirical analysis. For example, the situation of quality and safety of aquatic products is serious now; the basic conditions of aquaculture lag behind the production development; aquatic industry is still in a low level of development and organization; and the quality and safety of aquatic products is the most main problem. This paper also revealed that fish would be the main source of animal-derived food, and the demand of characteristic aquatic products would continuously go up. Aquatic processing has initially formed a standard system. It drew a conclusion that it would be a good opportunity for China's aquatic processing industry in the future
文摘BACKGROUND The established cardiovascular risk factors cannot explain the overall risk of coronary artery disease(CAD),especially in women.Therefore,there is a growing need for the assessment of novel biomarkers to identify women at risk.The receptor for advanced glycation end products(RAGE)and its interaction with the advanced glycation end product(AGE)ligand have been associated with atherogenesis.The soluble fraction of RAGE(sRAGE)antagonizes RAGE signaling and exerts an antiatherogenic effect.AIM The study aim was to explore the association between plasma levels of sRAGE and CAD in nondiabetic postmenopausal women.METHODS This case-control study included 110 nondiabetic postmenopausal women who were enrolled in two groups.Group I included 55 angiographically proven CAD subjects with>50%stenosis in at least one of the major coronary arteries and Group II included 55 healthy control women who did not have CAD or had<50%stenosis of the coronary arteries.Stenosis was confirmed by invasive angiography.Plasma sRAGE was determined by an enzyme-linked immunosorbent assay.RESULTS We observed significantly lower plasma sRAGE concentrations in subjects with CAD vs healthy controls(P<0.05).Univariate and multivariate logistic regression analysis also revealed a significant correlation between plasma sRAGE levels and CAD(P=0.01).Multivariate odds ratios for CAD revealed that subjects with sRAGE concentrations below 225 pg/mL(lowest quartile)had a 6-fold increase in CAD prevalence independent of other risk factors.CONCLUSION Our findings indicated that low sRAGE levels were independently associated with CAD in nondiabetic postmenopausal women.Risk assessment of CAD in postmenopausal women can be improved by including sRAGE along with other risk factors.
文摘This study examined the impact of farmers' health on labor data was collected through a field survey of 290 rural households productivity of female farmers in Imo State, Nigeria. Primary Descriptive statistics and estimation of efficiency following maximum likelihood estimation (MLE) procedure available in Frontier 4.1 were used to analyze the data. Results from the analyses showed that malaria has the highest prevalence level among female farmers in the study area followed by typhoid fever. The causes of sicknesses vary from cold, stress, mosquito bites and bad drinking water. Furthermore, the results showed that sicknesses affect the productivity of farmers by reducing their work capacity. Also, the distance to source of drinking water from home, source of drinking water, age, body mass index of farmers are also found to significantly affect the physical work output of farmers in the study area. The result shows that the distribution of farmers was highly skewed with about 99% of the farmers having their efficiency above 0.61. This indicates that majority of the farmers are technically efficient in the allocation of resources to crop production, The result also shows that the average efficiency was about 82.9%. Thus, the farmers' level of efficiency can be improved if there is a shift in the fi'ontier, i.e. if factors contributing to inefficiency are adequately controlled. The study recommends the need to invest more on human capital especially health for there to be an improvement in rural productivity. Also, rural development policies should include health policies especially for women since it has a great influence on the household and emphasis should also be on preventive rather than curative health services.
文摘Source: MIIT In June 2019, automobile production and sales continued to decline year-on-year, but the decline was narrower than the prebvious month.1. Car sales in June fell 9.6 percent from a year earlier In June, automobile production and sales reached 1.895 million and 2.056 million, respectively, down 17.3 percent and 9.6 percent year-on-year, respectively.
文摘This paper clarifies thestatus of Chinese agricultural product trade through the calculation of Chinese agricultural product trade competitive advantage index for a total of 21 years from 1999 to 2019.
文摘According to statistics, there are more than 50 manufacturers of auto steering gear in China now, most of which are of annual output below 10,000 units. In 1993, the national total output of various kinds of steering gear is about 1,400000 units. There are six major ones among all these manufacturers.