Deep foundation pit excavation is a basic and key step involved in modern building construction.In order to ensure the construction quality and safety of deep foundation pits,this paper takes a project as an example t...Deep foundation pit excavation is a basic and key step involved in modern building construction.In order to ensure the construction quality and safety of deep foundation pits,this paper takes a project as an example to analyze deep foundation pit excavation technology,including the nature of this construction project,the main technical measures in the construction of deep foundation pit,and the analysis of the safety risk prevention and control measures.The purpose of this analysis is to provide scientific reference for the construction quality and safety of deep foundation pits.展开更多
Kiwifruit root rot is an important root disease of kiwifruit, which has occurred increasingly in recent years. The disease leads to the death of whole kiwifruit plant under severe condition, and has become an importan...Kiwifruit root rot is an important root disease of kiwifruit, which has occurred increasingly in recent years. The disease leads to the death of whole kiwifruit plant under severe condition, and has become an important disease restricting kiwi fruit industry development. The characteris-tics, occurrence, etiology and symptoms of kiwifruit root rot were introduced in the paper, and the prevention and control technology against the dis-ease were put forward from the aspects of agriculture, biology and chemistry.展开更多
In order to actively develop green ecological strawberry, the authors have studied integrated microecological prevention and control technologies of strawberry continuous cropping diseases, including increasing soil b...In order to actively develop green ecological strawberry, the authors have studied integrated microecological prevention and control technologies of strawberry continuous cropping diseases, including increasing soil biomass and solar high temperature disinfection during strawberry greenhouse leisure period in summer, biological fertilizer (agent) treatment before colonization, root irrigation treatment with biocontrol agent, as well as appropriate amount of fulvic acid and cytex after colonization, forming a supporting technical system for the microecological prevention and control of soil-borne diseases in facilities. The demonstration application in production shows that the technology has the functions of restoring and enhancing soil biological fertility, enriching beneficial microbial flora, antagonizing harmful bacteria, significantly promoting the growth and development of strawberry, reducing the incidence of soil-borne diseases, reducing the use of chemical fertilizers and pesticides, promoting the early ripening and high yield of strawberry, significantly improving the quality and flavor of strawberry, reducing the risk of pesticide residues, and boosting consumer confidence, which further improves the economic benefit, social benefit and ecological benefit, with good application prospect in production.展开更多
[Objectives]The paper was to screen and identify the control effect of resistant rootstock on jujube witches broom disease.[Methods]The seeds or branches of disease-free plants were collected from wild jujube bushes i...[Objectives]The paper was to screen and identify the control effect of resistant rootstock on jujube witches broom disease.[Methods]The seeds or branches of disease-free plants were collected from wild jujube bushes infected by witches broom disease,and 5434 seedlings were obtained by sowing or cutting.The virus was inoculated by grafting diseased bark.After 6 years of preliminary screening,40 plants with resistance to jujube witches broom disease were obtained.Taking these resistant plants as the rootstocks,the susceptible variety‘long red jujube’was grafted at a height of 40 cm.When the plants grew to appropriate thickness,diseased bark was grafted to‘long red jujube’and rootstock to transmit the virus.After 18 years of observation and judgment,4 rootstock strains with high resistance or immunity to jujube witches broom disease were finally determined,namely 90801,90803,90806 and 908011.The susceptible variety‘long red jujube’was grafted to 4 rootstocks and inoculated the virus through diseased bark grafting method.[Results]The resistant rootstock had obvious disease resistance effect.When the branches of 90801 and 90803 rootstocks were grafted to the trunk of diseased trees,the symptoms of jujube witches broom disease gradually alleviated till disappeared.[Conclusions]Using germplasm with high resistance or immunity to jujube witches broom disease as rootstock can effectively prevent the spread of jujube witches broom disease,and bridging the trunk of diseased trees with branches from resistant rootstock has certain therapeutic effect.展开更多
This research was aimed at the defects in traditional artificial spraying control method and the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle and lat...This research was aimed at the defects in traditional artificial spraying control method and the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle and late stage of sugarcane high stalk crops.The aerial pesticide application technology for sugarcane main diseases and pests was systematically developed and demonstrated from the aspects of aircraft type choice,selection of special pesticides and auxiliaries,integration of pesticides and equipment,field operation,technical specifications,and large-scale application organization mode.The UAV model and flight technical parameters suitable for the sugarcane planting area in low-latitude plateau were analyzed,and the optimal agent formulation combination and application technology of the UAV flight control were screened out,and the UAV flight control was applied to the major sugarcane pests and diseases control in the low-latitude plateau in large scale(UAV flight control was popularized and applied to 15 527 hm 2 in 2018).The research results provided mature whole-process technical support for the normalization of the application of the UVA flight control of major sugarcane pests and diseases.The UAV control technology for major sugarcane pests and diseases had the advantages of ultra-low pesticides applying dosage and high operating efficiency,and could effectively solve the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle late growth stage of high stalk crops.This technology successfully opened up a simple,efficient and new way for the effective control of major sugarcane pests and diseases,and practically accelerated the process of integrated control and prevention of sugarcane pests and diseases.In addition,this technology had an extremely significant effect on reducing the loss of sugarcane farmers and enterprises caused by the epidemic and outbreak of sugarcane pests and diseases,increasing sugarcane yield and sugar content.At the same time,this technology played an important role in realizing the whole-process precise control of sugarcane pests and diseases,improving the quality and increasing the efficiency of sugarcane,and guaranteeing the national sugar safety.展开更多
Since 2002,Hami City,Xinjiang Province,has implemented"construction project of rodent-free demonstration area".Artificial eagle frames are installed on the grassland to control rodent damage,receiving remark...Since 2002,Hami City,Xinjiang Province,has implemented"construction project of rodent-free demonstration area".Artificial eagle frames are installed on the grassland to control rodent damage,receiving remarkable control effect.The rodent density in the treatment area is below the threshold of hazard.Moreover,the implementation of the project increases the grassland biomass and improves the vegetation coverage,receiving good economic,ecological and social benefits.展开更多
Zeuzera coffeae Nietner is a kind of pest which bores branches and trunks of coffee trees and grows in the interior of trees.It is widely distributed in China.This paper discussed the distribution,life history,morphol...Zeuzera coffeae Nietner is a kind of pest which bores branches and trunks of coffee trees and grows in the interior of trees.It is widely distributed in China.This paper discussed the distribution,life history,morphological characteristics,living habits and damage characteristics of Z.coffeae,and focused on the prevention and control measures,which can provide a reference for the comprehensive control of Z.coffeae.展开更多
莱姆病(Lyme disease)又名伯氏疏螺旋体病,是20世纪70年代发现的以蜱为传播媒介,由不同基因型伯氏疏螺旋体(Borrelia burgdorferi sensu lato)感染所致的人兽共患自然疫源性疾病,主要流行于温带和亚热带地区,犬、猫、马、牛、鹿等多种...莱姆病(Lyme disease)又名伯氏疏螺旋体病,是20世纪70年代发现的以蜱为传播媒介,由不同基因型伯氏疏螺旋体(Borrelia burgdorferi sensu lato)感染所致的人兽共患自然疫源性疾病,主要流行于温带和亚热带地区,犬、猫、马、牛、鹿等多种动物易感,人也是该病原菌的易感宿主。人患莱姆病时的主要症状为游走性红斑、关节炎和其他神经系统症状。患病动物常表现的症状是蜱叮咬部位被毛脱落、发热、蹄叶炎、跛行等。莱姆病流行广泛,但是诊断较为困难并极易造成误诊和漏诊。为避免莱姆病对畜牧业以及宠物行业造成不利影响,亟需提高对莱姆病的关注。因此,本文对动物莱姆病及其诊断和防治技术的研究进展进行综述,以期为动物莱姆病的准确、快速诊断和防治提供参考。展开更多
文摘Deep foundation pit excavation is a basic and key step involved in modern building construction.In order to ensure the construction quality and safety of deep foundation pits,this paper takes a project as an example to analyze deep foundation pit excavation technology,including the nature of this construction project,the main technical measures in the construction of deep foundation pit,and the analysis of the safety risk prevention and control measures.The purpose of this analysis is to provide scientific reference for the construction quality and safety of deep foundation pits.
基金Supported by Key Laboratory of Characteristic Fruit Resources Research and Utilization in Liupanshui(5202020170203)College Students Program of Liupanshui Normal University(LPSSY-DXS17054)
文摘Kiwifruit root rot is an important root disease of kiwifruit, which has occurred increasingly in recent years. The disease leads to the death of whole kiwifruit plant under severe condition, and has become an important disease restricting kiwi fruit industry development. The characteris-tics, occurrence, etiology and symptoms of kiwifruit root rot were introduced in the paper, and the prevention and control technology against the dis-ease were put forward from the aspects of agriculture, biology and chemistry.
基金Supported by Key Research and Development Program of Zhenjiang City(NY2020017)Independent Innovation Project of Agricultural Science and Technology of Jiangsu Province(CX[21]2019).
文摘In order to actively develop green ecological strawberry, the authors have studied integrated microecological prevention and control technologies of strawberry continuous cropping diseases, including increasing soil biomass and solar high temperature disinfection during strawberry greenhouse leisure period in summer, biological fertilizer (agent) treatment before colonization, root irrigation treatment with biocontrol agent, as well as appropriate amount of fulvic acid and cytex after colonization, forming a supporting technical system for the microecological prevention and control of soil-borne diseases in facilities. The demonstration application in production shows that the technology has the functions of restoring and enhancing soil biological fertility, enriching beneficial microbial flora, antagonizing harmful bacteria, significantly promoting the growth and development of strawberry, reducing the incidence of soil-borne diseases, reducing the use of chemical fertilizers and pesticides, promoting the early ripening and high yield of strawberry, significantly improving the quality and flavor of strawberry, reducing the risk of pesticide residues, and boosting consumer confidence, which further improves the economic benefit, social benefit and ecological benefit, with good application prospect in production.
基金Jujube Binzhou Comprehensive Test Station of China Agricultural Industry Research System(CARS30-ZZ-23).
文摘[Objectives]The paper was to screen and identify the control effect of resistant rootstock on jujube witches broom disease.[Methods]The seeds or branches of disease-free plants were collected from wild jujube bushes infected by witches broom disease,and 5434 seedlings were obtained by sowing or cutting.The virus was inoculated by grafting diseased bark.After 6 years of preliminary screening,40 plants with resistance to jujube witches broom disease were obtained.Taking these resistant plants as the rootstocks,the susceptible variety‘long red jujube’was grafted at a height of 40 cm.When the plants grew to appropriate thickness,diseased bark was grafted to‘long red jujube’and rootstock to transmit the virus.After 18 years of observation and judgment,4 rootstock strains with high resistance or immunity to jujube witches broom disease were finally determined,namely 90801,90803,90806 and 908011.The susceptible variety‘long red jujube’was grafted to 4 rootstocks and inoculated the virus through diseased bark grafting method.[Results]The resistant rootstock had obvious disease resistance effect.When the branches of 90801 and 90803 rootstocks were grafted to the trunk of diseased trees,the symptoms of jujube witches broom disease gradually alleviated till disappeared.[Conclusions]Using germplasm with high resistance or immunity to jujube witches broom disease as rootstock can effectively prevent the spread of jujube witches broom disease,and bridging the trunk of diseased trees with branches from resistant rootstock has certain therapeutic effect.
基金Supported by the China Agriculture Research System(CARS-170303)the Special Fund for the Construction of Modern Agricultural Technology System in Yunnan Province+1 种基金the Training Project of Yunling Industry and Technology Leading Talents(2018LJRC56)the Project for the Cooperation between Scientific Research Institutes and Enterprises in Nanhua of Lincang(LT11-12E120810-002<12-13E130328-041)
文摘This research was aimed at the defects in traditional artificial spraying control method and the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle and late stage of sugarcane high stalk crops.The aerial pesticide application technology for sugarcane main diseases and pests was systematically developed and demonstrated from the aspects of aircraft type choice,selection of special pesticides and auxiliaries,integration of pesticides and equipment,field operation,technical specifications,and large-scale application organization mode.The UAV model and flight technical parameters suitable for the sugarcane planting area in low-latitude plateau were analyzed,and the optimal agent formulation combination and application technology of the UAV flight control were screened out,and the UAV flight control was applied to the major sugarcane pests and diseases control in the low-latitude plateau in large scale(UAV flight control was popularized and applied to 15 527 hm 2 in 2018).The research results provided mature whole-process technical support for the normalization of the application of the UVA flight control of major sugarcane pests and diseases.The UAV control technology for major sugarcane pests and diseases had the advantages of ultra-low pesticides applying dosage and high operating efficiency,and could effectively solve the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle late growth stage of high stalk crops.This technology successfully opened up a simple,efficient and new way for the effective control of major sugarcane pests and diseases,and practically accelerated the process of integrated control and prevention of sugarcane pests and diseases.In addition,this technology had an extremely significant effect on reducing the loss of sugarcane farmers and enterprises caused by the epidemic and outbreak of sugarcane pests and diseases,increasing sugarcane yield and sugar content.At the same time,this technology played an important role in realizing the whole-process precise control of sugarcane pests and diseases,improving the quality and increasing the efficiency of sugarcane,and guaranteeing the national sugar safety.
文摘Since 2002,Hami City,Xinjiang Province,has implemented"construction project of rodent-free demonstration area".Artificial eagle frames are installed on the grassland to control rodent damage,receiving remarkable control effect.The rodent density in the treatment area is below the threshold of hazard.Moreover,the implementation of the project increases the grassland biomass and improves the vegetation coverage,receiving good economic,ecological and social benefits.
基金Supported by Undergraduate Innovation and Enterpreneurship Training Program of Guangdong Province(S202110580043).
文摘Zeuzera coffeae Nietner is a kind of pest which bores branches and trunks of coffee trees and grows in the interior of trees.It is widely distributed in China.This paper discussed the distribution,life history,morphological characteristics,living habits and damage characteristics of Z.coffeae,and focused on the prevention and control measures,which can provide a reference for the comprehensive control of Z.coffeae.
文摘莱姆病(Lyme disease)又名伯氏疏螺旋体病,是20世纪70年代发现的以蜱为传播媒介,由不同基因型伯氏疏螺旋体(Borrelia burgdorferi sensu lato)感染所致的人兽共患自然疫源性疾病,主要流行于温带和亚热带地区,犬、猫、马、牛、鹿等多种动物易感,人也是该病原菌的易感宿主。人患莱姆病时的主要症状为游走性红斑、关节炎和其他神经系统症状。患病动物常表现的症状是蜱叮咬部位被毛脱落、发热、蹄叶炎、跛行等。莱姆病流行广泛,但是诊断较为困难并极易造成误诊和漏诊。为避免莱姆病对畜牧业以及宠物行业造成不利影响,亟需提高对莱姆病的关注。因此,本文对动物莱姆病及其诊断和防治技术的研究进展进行综述,以期为动物莱姆病的准确、快速诊断和防治提供参考。