Increasing production and disposal of coal fly ash （CFA） is a matter of serious environment concern. However, CFA contains various beneficial metals and mineral matters whose demand is increasing in the industrializ...Increasing production and disposal of coal fly ash （CFA） is a matter of serious environment concern. However, CFA contains various beneficial metals and mineral matters whose demand is increasing in the industrialized world, while natural supplies are diminishing. Therefore, recovery of these potential resources from CFA can be an alternative way to save mineral resources, as well as to reduce the environmental burden of CFA disposal. There are numerous methods developed for the recovery of beneficial products from CFA. Based on the US patents and journal literatures, the present review describes the recovery status and technologies of major elements such as Al, Si, Fe and Ti, and trace elements such as V, Ga, Ge, Se, Li, Mo, U, Au, Ag, Pt groups and rare earth elements （REEs） and other beneficial products such as magnetic materials, cenospheres, and unburned carbon from CFA. It also highlights the recovery efficiency and drawbacks for their extraction, and suggests future research to develop satisfactory results in terms of selective recovery and purification.展开更多
The construction of Grain Production Functional Zone and Modern Agicultural Zone （Two Zones for short） plays a key role in the development of modern agriculture and solving the quantity and quality problems of agric...The construction of Grain Production Functional Zone and Modern Agicultural Zone （Two Zones for short） plays a key role in the development of modern agriculture and solving the quantity and quality problems of agricultural products. The Two Zones serves as the important form and carrier of agricultural standardization and the agricultural standardization provides means and ways for it. The paper puts forward the suggestions and solutions for agricultural standardization in Two Zones in the aspects of boosting standards innovation projects, management and so forth.展开更多
Wheat ranks first among cereal crops cultivated in the world. In its production, diseases like powdery mildew, fusarium head blight and rusts caused by fungal pathogens represent a major problem. They produce differen...Wheat ranks first among cereal crops cultivated in the world. In its production, diseases like powdery mildew, fusarium head blight and rusts caused by fungal pathogens represent a major problem. They produce different symptoms that cause severe crop damage by infecting the spikes, leaves, roots, stems and grains. They are causing losses both by reducing the quantity of the harvested crop and the quality of the product. Quality problems of the harvested product can be due to shrivelled seed, which are frequently found as a consequence of the infection by leaf pathogens, such as mildews, rusts and Septoria. Fusarium head blight is the major culprit for mycotoxin contamination from the harvested grain, causing economic losses and in the worst casing human and animal health problems. In severe epidemics, all these fungal diseases can significantly reduce yield. Resistance to fungi is beneficial not only from a commercial point of view （yield）, but also because of the reduced levels of mycotoxins. The integration of transgenic approaches offers a potential chemical-free and environment-friendly solution for controlling fungal pathogens. This is an essential asset for wheat world food security.展开更多
Until now, the issue of quality of the products of SMEs （small and medium enterprises） remains the main issues as the cause of low ability to compete. This study focused into the issue of what happened with regard t...Until now, the issue of quality of the products of SMEs （small and medium enterprises） remains the main issues as the cause of low ability to compete. This study focused into the issue of what happened with regard to the quality of products in the supply chain SME products. This study aims to describe how the culture of quality in the supply chain of SMEs and their role in contributing to the lack of SME products. The study involved 128 SMEs in the food processing industry cluster and garment industry. The research uses qualitative method with case study approach. The results showed an average internal quality culture reached 3.62661 supply included in the category enough. Of the five industry cluster, a culture of quality in the internal supply chain is the best T-shirt industry （4.3385） in both categories, while other four clusters exist in enough categories, with grades： hoods （3.661）, soy crisps （3.6635）, cassava chips （3.64）, and the last chips fish balls （2.829）. The low average internal quality culture supply mainly is in industrial processing of cassava chips and chips fish balls. One reason is the low awareness of quality. There is no technology and equipment adequate to safeguard the stability of quality. The upper most excellent quality culture occurred in the supply chain, where the product is controlled by big industry, is the industry shirts （4.018）, soy crisps （3.613）, and hoods （3.473）, while when in the upstream industry controlled by small or SMEs, there is deterioration in the cultural values of quality： cassava chips （2.917） and chips fish balls （2.781）. For downstream, 100% controlled by SMEs, there is an average value of quality culture 3.5662.展开更多
Biofuels could contribute, on a worldwide basis, to the attainment of international energy-policy objectives in three ways： by reducing dependence on imported oil; by increasing the availability of renewable energy s...Biofuels could contribute, on a worldwide basis, to the attainment of international energy-policy objectives in three ways： by reducing dependence on imported oil; by increasing the availability of renewable energy sources; and by dealing with environmental issues. One such environmental issue is the unsustainable use of agricultural land. There is a need in South Africa there to convert to sustainable and renewable energy resources, such as biofuels, but the production of biofuels will ultimately place pressure on the limited and fragile agricultural resources of the country. This paper sets out firstly to investigate national agricultural policies which could impact on the production of biofuels. It points out that national agricultural policies are hampering the domestic production of biofuels in that the focus is on land reform and increasing the volume of agricultural exports, whereas the provision of food and energy to meet domestic needs features only as a secondary aim. The second objective of this paper is to investigate the possibility of utilising energy crops for biofuel production in South Africa. Annual agricultural production, surplus import and export figures, provide an indication of the capacity of South African farmers to produce crops for biofuel production.展开更多
India is the fifth major soybean growing country in the world. Soybean is a major kharif（monsoon season） oilseed crop grown by the farmers of Madhya Pradesh, the ＇Soy State＇. This golden bean of 21st century is su...India is the fifth major soybean growing country in the world. Soybean is a major kharif（monsoon season） oilseed crop grown by the farmers of Madhya Pradesh, the ＇Soy State＇. This golden bean of 21st century is successfully being grown by the farmers of this ＂Soy State＂ since its resurrection in India during late sixties. This venture not only revolutionized the socio-economic status of soybean farmers but also provided them with an apt cropping： system of soybean-wheat/chickpea as soybean occupied monsoon fallows in initial years of its establishment. Presently, the crop covers more than 9.67 million hectares in India with major contribution from the states of Madhya Pradesh, Maharashtra, Rajasthan, Karnataka and Andhra Pradesh. The likely production from this area during 2009-2010 is 9.72 million tones. The concerted technological back up support from the Research and Development system （ICAW AICRPS/SAUs） along with State owned extension agencies and private sector has been instrumental in narrowing the yield gap II of soybean from above 1000 kg/ha in 1970 to 390 kg/ha by 2008. Mitigating the loss in productivity by refining the existing management practices to deal with the biotic and abiotie stresses and to take the technology so developed effectively to farmers by the extension agencies constitute a priority to boost up the production of this crop. An investigation to identify the felt needs and problems of soybean growers of Madhya Pradesh was carried out in order to formulate the technological interventions to increase the national productivity which is hovering around 1000 kg/ha since last few years. The data were collected employing pre-designed questionnaire as well as interview schedule which were administered on the respondents at two different stages. The study brought out that non-availability of quality seed of improved varieties of soybean is the major problem experienced by the farmers. The problems associated with management of insect-pests and disease complex followed the suit. Among the pests, girdle beetle, tobacco caterpillar and the green semilooper were found to be more responsible for the yield erosion in farmers＇ field. Resorting to imbalanced fertilization and timely unavailability of needed fertilizers ranked third while the delayed and erratic monsoon causing moisture stress, poor infrastructural facilities including lacunae in input supply system are observed to be the major problems identified in this study.展开更多
文摘Increasing production and disposal of coal fly ash （CFA） is a matter of serious environment concern. However, CFA contains various beneficial metals and mineral matters whose demand is increasing in the industrialized world, while natural supplies are diminishing. Therefore, recovery of these potential resources from CFA can be an alternative way to save mineral resources, as well as to reduce the environmental burden of CFA disposal. There are numerous methods developed for the recovery of beneficial products from CFA. Based on the US patents and journal literatures, the present review describes the recovery status and technologies of major elements such as Al, Si, Fe and Ti, and trace elements such as V, Ga, Ge, Se, Li, Mo, U, Au, Ag, Pt groups and rare earth elements （REEs） and other beneficial products such as magnetic materials, cenospheres, and unburned carbon from CFA. It also highlights the recovery efficiency and drawbacks for their extraction, and suggests future research to develop satisfactory results in terms of selective recovery and purification.
文摘The construction of Grain Production Functional Zone and Modern Agicultural Zone （Two Zones for short） plays a key role in the development of modern agriculture and solving the quantity and quality problems of agricultural products. The Two Zones serves as the important form and carrier of agricultural standardization and the agricultural standardization provides means and ways for it. The paper puts forward the suggestions and solutions for agricultural standardization in Two Zones in the aspects of boosting standards innovation projects, management and so forth.
文摘Wheat ranks first among cereal crops cultivated in the world. In its production, diseases like powdery mildew, fusarium head blight and rusts caused by fungal pathogens represent a major problem. They produce different symptoms that cause severe crop damage by infecting the spikes, leaves, roots, stems and grains. They are causing losses both by reducing the quantity of the harvested crop and the quality of the product. Quality problems of the harvested product can be due to shrivelled seed, which are frequently found as a consequence of the infection by leaf pathogens, such as mildews, rusts and Septoria. Fusarium head blight is the major culprit for mycotoxin contamination from the harvested grain, causing economic losses and in the worst casing human and animal health problems. In severe epidemics, all these fungal diseases can significantly reduce yield. Resistance to fungi is beneficial not only from a commercial point of view （yield）, but also because of the reduced levels of mycotoxins. The integration of transgenic approaches offers a potential chemical-free and environment-friendly solution for controlling fungal pathogens. This is an essential asset for wheat world food security.
文摘Until now, the issue of quality of the products of SMEs （small and medium enterprises） remains the main issues as the cause of low ability to compete. This study focused into the issue of what happened with regard to the quality of products in the supply chain SME products. This study aims to describe how the culture of quality in the supply chain of SMEs and their role in contributing to the lack of SME products. The study involved 128 SMEs in the food processing industry cluster and garment industry. The research uses qualitative method with case study approach. The results showed an average internal quality culture reached 3.62661 supply included in the category enough. Of the five industry cluster, a culture of quality in the internal supply chain is the best T-shirt industry （4.3385） in both categories, while other four clusters exist in enough categories, with grades： hoods （3.661）, soy crisps （3.6635）, cassava chips （3.64）, and the last chips fish balls （2.829）. The low average internal quality culture supply mainly is in industrial processing of cassava chips and chips fish balls. One reason is the low awareness of quality. There is no technology and equipment adequate to safeguard the stability of quality. The upper most excellent quality culture occurred in the supply chain, where the product is controlled by big industry, is the industry shirts （4.018）, soy crisps （3.613）, and hoods （3.473）, while when in the upstream industry controlled by small or SMEs, there is deterioration in the cultural values of quality： cassava chips （2.917） and chips fish balls （2.781）. For downstream, 100% controlled by SMEs, there is an average value of quality culture 3.5662.
文摘Biofuels could contribute, on a worldwide basis, to the attainment of international energy-policy objectives in three ways： by reducing dependence on imported oil; by increasing the availability of renewable energy sources; and by dealing with environmental issues. One such environmental issue is the unsustainable use of agricultural land. There is a need in South Africa there to convert to sustainable and renewable energy resources, such as biofuels, but the production of biofuels will ultimately place pressure on the limited and fragile agricultural resources of the country. This paper sets out firstly to investigate national agricultural policies which could impact on the production of biofuels. It points out that national agricultural policies are hampering the domestic production of biofuels in that the focus is on land reform and increasing the volume of agricultural exports, whereas the provision of food and energy to meet domestic needs features only as a secondary aim. The second objective of this paper is to investigate the possibility of utilising energy crops for biofuel production in South Africa. Annual agricultural production, surplus import and export figures, provide an indication of the capacity of South African farmers to produce crops for biofuel production.
文摘India is the fifth major soybean growing country in the world. Soybean is a major kharif（monsoon season） oilseed crop grown by the farmers of Madhya Pradesh, the ＇Soy State＇. This golden bean of 21st century is successfully being grown by the farmers of this ＂Soy State＂ since its resurrection in India during late sixties. This venture not only revolutionized the socio-economic status of soybean farmers but also provided them with an apt cropping： system of soybean-wheat/chickpea as soybean occupied monsoon fallows in initial years of its establishment. Presently, the crop covers more than 9.67 million hectares in India with major contribution from the states of Madhya Pradesh, Maharashtra, Rajasthan, Karnataka and Andhra Pradesh. The likely production from this area during 2009-2010 is 9.72 million tones. The concerted technological back up support from the Research and Development system （ICAW AICRPS/SAUs） along with State owned extension agencies and private sector has been instrumental in narrowing the yield gap II of soybean from above 1000 kg/ha in 1970 to 390 kg/ha by 2008. Mitigating the loss in productivity by refining the existing management practices to deal with the biotic and abiotie stresses and to take the technology so developed effectively to farmers by the extension agencies constitute a priority to boost up the production of this crop. An investigation to identify the felt needs and problems of soybean growers of Madhya Pradesh was carried out in order to formulate the technological interventions to increase the national productivity which is hovering around 1000 kg/ha since last few years. The data were collected employing pre-designed questionnaire as well as interview schedule which were administered on the respondents at two different stages. The study brought out that non-availability of quality seed of improved varieties of soybean is the major problem experienced by the farmers. The problems associated with management of insect-pests and disease complex followed the suit. Among the pests, girdle beetle, tobacco caterpillar and the green semilooper were found to be more responsible for the yield erosion in farmers＇ field. Resorting to imbalanced fertilization and timely unavailability of needed fertilizers ranked third while the delayed and erratic monsoon causing moisture stress, poor infrastructural facilities including lacunae in input supply system are observed to be the major problems identified in this study.
