The green high-yield and high-efficiency cultivation techniques of integrated management of water and fertilizer for maize under mulch drip irrigation are described from the aspects of high yield target of maize and i...The green high-yield and high-efficiency cultivation techniques of integrated management of water and fertilizer for maize under mulch drip irrigation are described from the aspects of high yield target of maize and its component factor indexes,pre-sowing preparation,sowing,post-sowing management,field management at the seedling stage,integrated management of water and fertilizer for target yield of maize,rational application of micro-fertilizer,comprehensive prevention and control of diseases and pests,timely harvest,etc.,in order to provide a reference for agricultural technicians,maize farmers and maize industry development in northern Xinjiang.展开更多
The integration of water and fertilizer is a comprehensive technology combined irrigation and fertilizer, which has outstanding advantages of saving fertilizer, saving water, saving labor, protecting environment, high...The integration of water and fertilizer is a comprehensive technology combined irrigation and fertilizer, which has outstanding advantages of saving fertilizer, saving water, saving labor, protecting environment, high yield and high efficiency. Currently, most of the water and fertilizer integrated irrigation and fertilization and irrigation operation in the production-based greenhouse is achieved relying on artificial experience, which is hard to achieve timely, scientific and intelligent irrigation. In this study, the application of STM32 embedded system realized the real-time collection of the data from the humidity sensors buried in top, middle and low depth of soil, and water and fertilizer integrated irrigation work was completed in the greenhouse through automatic control according to the predetermined fertilization and irrigation strategies for different crops. Moreover, the system had remote monitoring function, which used the global system for mobile （GSM） module to provide users with remote short message services, and therefore, the users could not only achieve the remote intelligent monitoring on the irrigation, light, ventilation of the greenhouse through short messages, but also could start and stop the remote control system operation, so as to realize the automatic management of the greenhouse environment, achieving the purpose of remote fertilization and water-saving irrigation.展开更多
To achieve the purpose of reducing farm non-point source pollution, we integrated site specific nitrogen management precise irrigation, controlled drainage, and wetland eco-repair system in dike area of Taihu basin. D...To achieve the purpose of reducing farm non-point source pollution, we integrated site specific nitrogen management precise irrigation, controlled drainage, and wetland eco-repair system in dike area of Taihu basin. During investigation, it had given prominence for the water and fertilizer coupling effects of precise irrigation and site specific nutrient management, the characteristics of integration on controlled irrigation, controlled drainage and wetland ecosystem non-point source pollution control. Then the water and fertilizer integrated management mode of paddy field was put forward in Taihu basin where the water production efficiency increased to 1.64 kg. m-3, water saved 37.8%, fertilizer use efficiency raised 15,4%, yield raised 10%, and N, P load decreased 26%-72%. The modern agricultural and farmland ecosystems that control and cut down the farm non-point source pollution came into being, which can be a reference by Taihu basin to control its agricultural non-point source pollution and eutrophicated water body.展开更多
Integrated water and fertilizer technology has the advantages of saving water,fertilizer and labour,which is widely applied in tomato plantation. Integrated water and fertilizer technology in topdressing and whole pro...Integrated water and fertilizer technology has the advantages of saving water,fertilizer and labour,which is widely applied in tomato plantation. Integrated water and fertilizer technology in topdressing and whole process of big and small tomatoes were studied,and their application effects were contrasted and analyzed,and application advantages and scopes of the two models were concluded.展开更多
In order to validate the control effects of integrated technology of medicine and fertilizer on tobacco bacterial wilt,field experiments were conducted by using youmeili and tetracycline as the test agents.The results...In order to validate the control effects of integrated technology of medicine and fertilizer on tobacco bacterial wilt,field experiments were conducted by using youmeili and tetracycline as the test agents.The results obtained were listed as follows:(1)The incidence rate of bacterial wilt ascended more quickly after July 10 th,the incidence of CK reached 78.30%on July 25 th.(2)The control effect of“youmeili 3 g+tetramycin 200 times liquid”reached 69.47%,significantly higher than other treatments.(3)The output value of“Youmeil 3 g+tetramycin 200 times liquid”served as 1635.66 yuan/667m^2,with the highest economic character in all treatments.In a word,integrated technology of medicine and fertilizer was a feasible approach to control tobacco bacterial wilt.展开更多
[Objectives]The paper was to obtain fertilizer varieties and fertilization techniques that meet the special nutritional requirements of characteristic tobacco varieties in Mengyin tobacco area.[Methods]With the local ...[Objectives]The paper was to obtain fertilizer varieties and fertilization techniques that meet the special nutritional requirements of characteristic tobacco varieties in Mengyin tobacco area.[Methods]With the local main plant variety NC102 as the test material,the effects of combined application,dosage and application methods of different types of organic fertilizers,compound fertilizers and potassium fertilizers on chemical composition and quality of NC102 flue-cured tobacco leaves were studied.[Results]Under the premise of reducing the amount of fertilizer applied,the slow-release integrated fertilizer increased the sugar-alkali ratio and potassium-chloride ratio,and reduced the sulfur content of tobacco leaves,but it did not significantly improve the sensory quality of tobacco leaves.Increasing the application of organic fertilizer made the sugar-alkali ratio and potassium-chloride ratio more coordinated,reduced the sulfur content and improved the sensory quality of tobacco leaves.Microbial agents significantly increased the sugar-alkali ratio in tobacco leaves,and had obvious effects of increasing potassium and reducing chlorine.Different types and application methods of potassium fertilizers had obvious effects on sensory quality of tobacco leaves.Increasing the application amount of potassium fertilizer and later topdressing significantly improved the potassium content and sensory quality of tobacco leaves.[Conclusions]The study provides a basis for balanced fertilization in characteristic flue-cured tobacco production in Mengyin tobacco area.展开更多
Climate change is increasingly affecting farm-level decisions on when to plant and which climate smart agriculture (CSA) options to use. This study was conducted to determine the profitability and farmer acceptability...Climate change is increasingly affecting farm-level decisions on when to plant and which climate smart agriculture (CSA) options to use. This study was conducted to determine the profitability and farmer acceptability of different CSA options for maize-bean production in drought-prone areas of Uganda. It was conducted on-farm in Rakai and Nakasongola districts during 2020 and 2021. Variables included: planting date (early vs late);varieties (common beans: NABE 4 and NAROBEAN 2, and maize: Longe 5 and Bazooka);intercropping versus pure stand;and fertiliser use (manure, Diammonium phosphate (DAP) or combination). The experimental design was split-split plot, replicated six times. Over two years, early planting caused 16% and up to 46% higher yields of maize and beans, respectively, than late planting, resulting in 14% - 28% and 18% - 43% higher Benefit/Cost (B/C) ratio for maize and beans, respectively. Intercropping reduced maize and beans yield by 16% - 25% and 52% - 57%, respectively. The B/C was highest for sole maize;intercropping was more profitable than sole beans. Fertilizer (DAP) was most profitable when Bazooka was early-planted as sole crop followed by intercrop. For late planted-crop, manure was better. These practices were more beneficial when applied simultaneously for both crops excluding bean variety. Farmers’ lessons stressed the importance of early planting and fertilizer use;however, majority indicated they were to adopt more than two of the practices tested.展开更多
文摘The green high-yield and high-efficiency cultivation techniques of integrated management of water and fertilizer for maize under mulch drip irrigation are described from the aspects of high yield target of maize and its component factor indexes,pre-sowing preparation,sowing,post-sowing management,field management at the seedling stage,integrated management of water and fertilizer for target yield of maize,rational application of micro-fertilizer,comprehensive prevention and control of diseases and pests,timely harvest,etc.,in order to provide a reference for agricultural technicians,maize farmers and maize industry development in northern Xinjiang.
基金Supported by the Scientific Research Plan of the Education Department of Jilin Province(2014322)~~
文摘The integration of water and fertilizer is a comprehensive technology combined irrigation and fertilizer, which has outstanding advantages of saving fertilizer, saving water, saving labor, protecting environment, high yield and high efficiency. Currently, most of the water and fertilizer integrated irrigation and fertilization and irrigation operation in the production-based greenhouse is achieved relying on artificial experience, which is hard to achieve timely, scientific and intelligent irrigation. In this study, the application of STM32 embedded system realized the real-time collection of the data from the humidity sensors buried in top, middle and low depth of soil, and water and fertilizer integrated irrigation work was completed in the greenhouse through automatic control according to the predetermined fertilization and irrigation strategies for different crops. Moreover, the system had remote monitoring function, which used the global system for mobile （GSM） module to provide users with remote short message services, and therefore, the users could not only achieve the remote intelligent monitoring on the irrigation, light, ventilation of the greenhouse through short messages, but also could start and stop the remote control system operation, so as to realize the automatic management of the greenhouse environment, achieving the purpose of remote fertilization and water-saving irrigation.
基金Supported by NSFC (50839002)Society Development Program of Jiangsu Province (BS2007139)
文摘To achieve the purpose of reducing farm non-point source pollution, we integrated site specific nitrogen management precise irrigation, controlled drainage, and wetland eco-repair system in dike area of Taihu basin. During investigation, it had given prominence for the water and fertilizer coupling effects of precise irrigation and site specific nutrient management, the characteristics of integration on controlled irrigation, controlled drainage and wetland ecosystem non-point source pollution control. Then the water and fertilizer integrated management mode of paddy field was put forward in Taihu basin where the water production efficiency increased to 1.64 kg. m-3, water saved 37.8%, fertilizer use efficiency raised 15,4%, yield raised 10%, and N, P load decreased 26%-72%. The modern agricultural and farmland ecosystems that control and cut down the farm non-point source pollution came into being, which can be a reference by Taihu basin to control its agricultural non-point source pollution and eutrophicated water body.
基金Supported by "Sannongliufang" Technology Collaboration Program in Zhejiang Province in 2014
文摘Integrated water and fertilizer technology has the advantages of saving water,fertilizer and labour,which is widely applied in tomato plantation. Integrated water and fertilizer technology in topdressing and whole process of big and small tomatoes were studied,and their application effects were contrasted and analyzed,and application advantages and scopes of the two models were concluded.
基金Supported by Science and Technology Project of Yunnan Tobacco Company(2015YN07,2017YN26)~~
文摘In order to validate the control effects of integrated technology of medicine and fertilizer on tobacco bacterial wilt,field experiments were conducted by using youmeili and tetracycline as the test agents.The results obtained were listed as follows:(1)The incidence rate of bacterial wilt ascended more quickly after July 10 th,the incidence of CK reached 78.30%on July 25 th.(2)The control effect of“youmeili 3 g+tetramycin 200 times liquid”reached 69.47%,significantly higher than other treatments.(3)The output value of“Youmeil 3 g+tetramycin 200 times liquid”served as 1635.66 yuan/667m^2,with the highest economic character in all treatments.In a word,integrated technology of medicine and fertilizer was a feasible approach to control tobacco bacterial wilt.
基金Supported by Technology Support Service of Zhejiang Tobacco Base“Research and Demonstration of Key Technology for Prevention and Control of Rhizome Diseases in Yimeng Tobacco Area”(201906)。
文摘[Objectives]The paper was to obtain fertilizer varieties and fertilization techniques that meet the special nutritional requirements of characteristic tobacco varieties in Mengyin tobacco area.[Methods]With the local main plant variety NC102 as the test material,the effects of combined application,dosage and application methods of different types of organic fertilizers,compound fertilizers and potassium fertilizers on chemical composition and quality of NC102 flue-cured tobacco leaves were studied.[Results]Under the premise of reducing the amount of fertilizer applied,the slow-release integrated fertilizer increased the sugar-alkali ratio and potassium-chloride ratio,and reduced the sulfur content of tobacco leaves,but it did not significantly improve the sensory quality of tobacco leaves.Increasing the application of organic fertilizer made the sugar-alkali ratio and potassium-chloride ratio more coordinated,reduced the sulfur content and improved the sensory quality of tobacco leaves.Microbial agents significantly increased the sugar-alkali ratio in tobacco leaves,and had obvious effects of increasing potassium and reducing chlorine.Different types and application methods of potassium fertilizers had obvious effects on sensory quality of tobacco leaves.Increasing the application amount of potassium fertilizer and later topdressing significantly improved the potassium content and sensory quality of tobacco leaves.[Conclusions]The study provides a basis for balanced fertilization in characteristic flue-cured tobacco production in Mengyin tobacco area.
文摘Climate change is increasingly affecting farm-level decisions on when to plant and which climate smart agriculture (CSA) options to use. This study was conducted to determine the profitability and farmer acceptability of different CSA options for maize-bean production in drought-prone areas of Uganda. It was conducted on-farm in Rakai and Nakasongola districts during 2020 and 2021. Variables included: planting date (early vs late);varieties (common beans: NABE 4 and NAROBEAN 2, and maize: Longe 5 and Bazooka);intercropping versus pure stand;and fertiliser use (manure, Diammonium phosphate (DAP) or combination). The experimental design was split-split plot, replicated six times. Over two years, early planting caused 16% and up to 46% higher yields of maize and beans, respectively, than late planting, resulting in 14% - 28% and 18% - 43% higher Benefit/Cost (B/C) ratio for maize and beans, respectively. Intercropping reduced maize and beans yield by 16% - 25% and 52% - 57%, respectively. The B/C was highest for sole maize;intercropping was more profitable than sole beans. Fertilizer (DAP) was most profitable when Bazooka was early-planted as sole crop followed by intercrop. For late planted-crop, manure was better. These practices were more beneficial when applied simultaneously for both crops excluding bean variety. Farmers’ lessons stressed the importance of early planting and fertilizer use;however, majority indicated they were to adopt more than two of the practices tested.
