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Design and implementation of international agricultural and biological engineering expert management system based on WEB mode

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International Journal of Agricultural and Biological Engineering 2020年第6期13卷 195-200页

作者： jianbo shen Liwei Tan Yingkuan Wang Academy of Agricultural Planning and Engineering Ministry of Agriculture and Rural AffairsBeijing 100125China Chinese Society of Agricultural Engineering Beijing 100125China

Agriculture and biological engineering are the foundation of agricultural modernization,and related countries have also issued relevant policies to guide the development of agriculture and *** and biological engineering experts are the intellectual resources in the *** present,there is less research on the management and maintenance of agricultural and biological engineering experts,and there is a lack of software systems in this *** order to realize the management and maintenance of agricultural and biological engineering expert information,a service platform for the international agricultural and biological engineering expert system based on the B/S framework has been *** background of the system used C#as the development language,and the foreground used JavaScript technology and *** software adopted *** MVC as the web development framework and used the Entity Framework to operate the SQL Server background *** system has the function of searching and querying agricultural and biological engineering expert information according to keywords,and implements the functions of adding,deleting,and modifying data records,and the function of generating spreadsheets and importing spreadsheet *** development of this system provides effective management tools for the maintenance and construction of agricultural and biological engineering expert databases and lays a good foundation for the construction of agricultural and biological engineering think tanks.

关键词： agricultural and bioengineering engineering expert management WEB mode conditional search think tanks *** MVC bootstrap entity framework technology

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Interactive effects of phosphorus deficiency and exogenous auxin on root morphological and physiological traits in white lupin (Lupinus albus L.)

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Science China(Life Sciences) 2013年第4期56卷 313-323页

作者： TANG HongLiang shen jianbo ZHANG FuSuo RENGEL Zed Centre for Resources Environment and Food Security Department of Plant Nutrition Key Laboratory of Plant-Soil Interactions Ministry of Education China Agricultural University College of Life Science Hebei University Soil Science & Plant Nutrition School of Earth and Environment The University of Western Australia

White lupin （Lupinus albus） exhibits strong root morphological and physiological responses to phosphorus （P） deficiency and auxin treatments, but the interactive effects of P and auxin in regulating root morphological and physiological traits are not fully understood. This study aimed to assess white lupin root traits as influenced by P （0 or 250 ~tmol L-1） and auxin （10=8 mol L-1 NAA） in nutrient solution. Both P deficiency and auxin treatments significantly altered root morphological traits, as evi- denced by reduced taproot length, increased number and density of first-order lateral roots, and enhanced cluster-root for- marion. Changes in root physiological traits were also observed, i.e., increased proton, citrate, and acid phosphatase exudation. Exogenous auxin enhanced root responses and sensitivity to P deficiency. A significant interplay exists between P and auxin in the regulation of root morphological and physiological traits. Principal component analysis showed that P availability ex- plained 64.8% and auxin addition 21.3% of the total variation in root trait parameters, indicating that P availability is much more important than auxin in modifying root responses of white lupin. This suggests that white lupin can coordinate root mor- phological and physiological responses to enhance acquisition of P resources, with an optimal trade-off between root morpho- logical and physiological traits regulated by external stimuli such as P availability and auxin.

关键词： cluster root carboxylate exudation proton auxin phosphorus deficiency Lupinus albus

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Sustainable Resource Use in Enhancing Agricultural Development in China

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Engineering 2018年第5期4卷 588-589页

作者： jianbo shen Fusuo Zhang Kadambot H.M. Siddique National Academy of Agriculture Green Development Center for Resources Environment and Food Security College of Resources and Environmental SciencesChina Agricultural University Beijing 100193 China Hackett Professor and Director of the UWA Institute of Agriculture The University of Western Australia Perth WA 6001 Australia

1. IntroductionChina is entering an impressive era of grain production since its reform and opening up in 1978. At present, China feeds 22% of the world population with only 9% of the world＇s arable land [1]. Thus, China has become a leader in the global fight against hunger[2] . Grain production has increased dramatically, from about 3 × 10^8t in 1978 to 6.21 × 10^8t in 2016, which is an annual increase rate of 9% [3].

关键词：改革开放中国粮食安全农业

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A potential solution for food security in Kenya:implications of the Quzhou model in China

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Frontiers of Agricultural Science and Engineering 2020年第4期7卷 406-417页

作者： Xiaoqiang JIAO jianbo shen Fusuo ZHANG National Academy of Agriculture Green Development Department of Plant NutritionCollege of Resources and Environmental ScienceChina Agricultural UniversityBeijing 100193China

Poor soil fertility due to low nutrient inputs is a major factor limiting grain production in *** soil fertility for crop productivity in China has implications for food security in *** purpose of this study was therefore to investigate the historical patterns of grain production,nutrient inputs,soil fertility and policies in Quzhou,a typical agricultural county on the North China Plain,and to compare grain production in Quzhou County and Kenya to identify a potential approach for increasing grain production in *** yields in Quzhou increased from 1 to 3 t$ha–1 between 1961 and 1987 by increasing manure application accompanied by small amounts of chemical fertilizer after soil *** was a further increase from 3 to 5 t$ha–1 up to 1996 which can be mainly attributed to chemical fertilizer use and policy ***,a beneficial cycle between soil fertility and plant growth in Quzhou grain production was developed and *** contrast,there was only a slight increase in grain yields in Kenya over this period,resulting from low soil fertility with limited external nutrient inputs,a consequence of poor socioeconomic *** is suggested that grain yields in Kenya would likely be boosted by the development of a selfreinforcing cycling between soil fertility and plant growth with manure and chemical fertilizer use if supported by policy and socioeconomic development.

关键词： China grain production Kenya soil fertility

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Contrasting patterns of accumulation,partitioning,and remobilization of biomass and phosphorus in a maize cultivar

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The Crop Journal 2022年第1期10卷 254-261页

作者： Weina Zhang Haigang Li Junling Zhang jianbo shen Hamish Brown Enli Wang Key Laboratory of Plant-Soil Interactions Ministry of EducationCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China School of Biological and Food Processing Engineering Huanghuai UniversityZhumadian 463000HenanChina Inner Mongolia Key Laboratory of Soil Quality and Nutrient Resources Key Laboratory of Grassland Resource(IMAU)Ministry of EducationCollege of GrasslandResources and EnvironmentInner Mongolia Agricultural UniversityHohhot 010018Inner MongoliaChina The New Zealand Institute for Plant&Food Research Limited Private Bag 4704ChristchurchNew Zealand CSIRO Agriculture and Food GPO Box 1700CanberraACT 2601Australia

Maize growth,organ development,and yield formation are highly controlled by the manner in which the plant captures,partition,and remobilizes biomass and phosphorus(P).Better understanding of biomass and P accumulation,partition,and remobilization processes will improve modeling of crop resource ***,there is still a lack of detailed data to parameterize the modeling of these processes,particula rly for modern maize cultivars.A two-year(2016 and 2017)field experiment with three P fertilization treatments(0(P0),75(P75),and 300(P300)kg P_(2)O_(5)ha^(-1))was conducted on a Fluvo-aquic soil(Quzhou,Hebei province,China)to collect data and quantify key processes for a representative modern maize cultivar(Zhengdan 958)widely grown in *** proportions of biomass and P partitioned into various maize organs were unaffected by P application *** 958 showed a much lower leaf-senescence rate than older cultivars,resulting in post-silking leaf photosynthesis being sufficient to meet grain biomass *** contrast,50%-85%of leaf P and 15%-50%of stem P accumulated pre-silking were remobilized into grain,in spite of the large proportion of post-silking P *** results are consistent with the theory that plants use resources according to the priority order of re-allocation from senescence followed by assimilation and uptake,with the re-translocation of reserves *** results also enabled us to estimate the threshold P concentrations of Zhengdan 958 for modeling crop P *** critical leaf P concentration for individual leaves was 0.25%-0.30%,with a corresponding specific leaf P(SLP)of 75-100 mg P m^(-2).The structural P concentration for leaf was 0.01%,corresponding to an SLP of 3.8 mg P m^(-2).The maximum P concentrations of leaves and stems were 0.33%and 0.29%.The residual P concentration for stems was 0.006%.

关键词： Biomass Phosphorus Partitioning Remobilization Individual leaves

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Combined Applications of Nitrogen and Phosphorus Fertilizers with Manure Increase Maize Yield and Nutrient Uptake via Stimulating Root Growth in a Long-Term Experiment

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Pedosphere 2016年第1期26卷 62-73页

作者： WEN Zhihui shen jianbo Martin BLACKWELL LI Haigang ZHAO Bingqiang YUAN Huimin College of Resources and Environmental Sciences China Agricultural University Rothamsted Research North Wyke Institute of Agricultural Resources and Regional Planning China Academy of Agricultural Sciences

Imbalanced application of nitrogen(N) and phosphorus(P) fertilizers can result in reduced crop yield,low nutrient use efficiency,and high loss of nutrients and soil nitrate nitrogen(NO_3^--N) accumulation decreases when N is applied with P and/or manure;however,the effect of applications of N with P and/or manure on root growth and distribution in the soil profile is not fully *** aim of this study was to investigate the combined effects of different N and P fertilizer application rates with or without manure on maize(Zea mays L.) yield,N uptake,root growth,apparent N surplus,Olsen-P concentration,and mineral N(N_(min)) accumulation in a fluvo-aquic calcareous soil from a long-term(28-year) *** experiment comprised twelve combinations of chemical N and P fertilizers,either with or without chicken manure,as treatments in four *** yield of maize grain was 82%higher,the N uptake 100%higher,and the N_(min) accumulation 39%lower in the treatments with combined N and P in comparison to N fertilizer *** maize root length density in the 30-60 cm layer was three times greater in the treatments with N and P fertilizers than with N fertilizer *** addition increased maize yield by 50%and N uptake by 43%,and reduced N_(min)(mostly NO_3^--N) accumulation in the soil by 46%.The long-term application of manure and P fertilizer resulted in significant increases in soil Olsen-P concentration when no N fertilizer was *** application reduced the apparent N surplus for all *** results suggest that combined N and P fertilizer applications could enhance maize grain yield and nutrient uptake via stimulating root growth,leading to reduced accumulation of potentially leachable NO_3^--N in soil,and manure application was a practical way to improve degraded soils in China and the rest of the world.

关键词： apparent N surplus degraded soils chemical fertilizers nitrate nitrogen root length density soil mineral N soil Olson-P

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Implications of agricultural success in the Yellow River Basin and its strategy for green development

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 122-133页

作者： Gang HE Zhaohui WANG Qichao ZHU jianbo shen Fusuo ZHANG College of Natural Resources and Environment Northwest A&F UniversityYangling 712100China Key Laboratory of Low-carbon Green Agriculture in Northwestern China Ministry of Agriculture and Rural AffairsBeijing 100125China College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China

The Yellow River Basin is an important food production area and an ecological challenge for China, where environmental protection and water scarcity are the major constraints. For the upper reaches of the Yellow River Basin,optimizing the adoption of chemicals in agricultural production and integrating crops with livestock are the key strategies for protecting the *** dryland agriculture in the middle and upper reaches, this study summarizes four aspects of efficient precipitation techniques in terms of collection,storage, conservation, and use, which have greatly improved crop yields and supported dryland crop production. Irrigated agriculture in the middle and lower reaches is the core area of China's grain production, where the area under water-saving irrigation reached 13.0 Mha in 2018, greatly improving water use. Compared with 1998, cereal production in 2018 increased by 62.2 Mt under similar total water withdrawals(49.7 billion to 51.6 billion m~3),and the annual soil erosion at the Tongguan Hydrological Observatory reduced by 584 million m~3 in 2018, achieving great success in environmental protection and efficient water use. The Chinese government has set a goal for the Yellow River Basin to become the national leader in environmental protection and efficient water use by 2035. Such a high demand requires the combined efforts of the whole community, as well as the adoption of new technologies,coordinated basin-wide development, and adequate policy support.

关键词： Ecological agriculture drylands agriculture irrigation water-saving technology policy support

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Promoting green transformation by ensuring food security while reducing the environmental footprint of food and farming with agriculture green development

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 1-4,I0005页

作者： William J.DAVIES jianbo shen Lancaster Environment Centre Lancaster UniversityLancaster LA14YQUK State Key Laboratory of Nutrient Use and Management National Academy of Agriculture Green DevelopmentCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China

Reconciling the challenges of producing adequate amounts of nutritious food for the increasing global population while limiting environmental damage that can result from operations of our food systems is an enormous *** many parts of the world,agriculture is undergoing major transformations and this has been and still is particularly the case in China.

关键词： operations agriculture transformation

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TRANSFORMATION OF AGRICULTURE ON THE LOESS PLATEAU OF CHINA TOWARD GREEN DEVELOPMENT

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Frontiers of Agricultural Science and Engineering 2021年第4期8卷 491-500页

作者： Gang HE Zhaohui WANG jianbo shen Zhenling CUI Fusuo ZHANG College of Natural Resources and Environment Northwest A&F UniversityYangling 712100China College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China

Loess Plateau of China is a typical dryland agricultural *** there has transformed from food shortage toward green development over the past seven decades,and has achieved world-renowned ***1950–1980,the population increased from 42 to 77 million,increasing grain production to meet food demand of rapid population growth was the greatest *** measures such as terracing and check-dam were the crucial strategies to increase crop *** 1981 to 2000,most of agronomic measures played a key role in increasing crops yield,and a series of policy support has benefited millions of *** expected,these measures and policies greatly increased crop production and basically achieved food security;but,low per capita GDP(only about 620 USD in 2000)was still a big *** 2001–2015,the increase in agricultural and non-agricultural income together supported the increase in farmer income to5781 USD·yr^(–1).Intensive agriculture that relies heavily on chemicals increased crop productivity by 56%.Steadfast policy support such as"Grain for Green Program"had an overwhelming advantage in protecting the natural ecological *** the new era,the integration of science and technology innovations,policy support and positive societal factors will be the golden key to further improve food production,protect environment,and increase smallholder income.

关键词： agronomic technologies economic returns education environmental cost food production government policy

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Exploring solutions for sustainable agriculture with“green”and“development”tags in Africa

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Frontiers of Agricultural Science and Engineering 2020年第4期7卷 363-365,F0003页

作者： Felix D.DAKORA jianbo shen Fusuo ZHANG Xiaoqiang JIAO Department of Chemistry Tshwane University of TechnologyPretoria 0001South Africa National Academy of Agriculture Green Development Key Laboratory of Plant-Soil InteractionsMinistry of EducationChina Agricultural UniversityBeijing 100193China

Following the UN sustainable development goals(SDGs),the 2030 agenda for sustainable development,which includes 17 sustainable development goals,was developed to shape a sustainable future for the world over the next 15 years[1].It has offered a vision of a sustainable,more prosperous world where nobody is hungry,and people eat enough nutritious food,especially in *** and food production are key to achieving the entire set of SDGs due to their fundamental role in societal and economic *** produce enough nutritious food to feed the large and ever-growing human population in a sustainable manner is a major challenge facing all countries in the *** challenge is however more daunting in Africa,especially sub-Saharan *** and food systems account for more than a quarter of GDP,as well as for more than 40%of employment in many African countries[2].To create,coordinate,and maintain“green”and“development”tags in African agriculture would require a fundamental shift in mobilizing the power of African food production system toward a sustainable agricultural intensification[3].Without any doubt,Africa represents the ideal environment for implementing the SDGs by government policymakers,scientists and business,particularly from an agricultural and food production *** to limited infrastructure,low adoption and use of technologies,and a flawed system of knowledge transfer by extension agents,Africa missed out on the Green Revolution of the last *** with China,grain yield in sub-Saharan Africa is still less than 2 t$ha–1,which can hardly meet the food demand of its ever-increasing population[4].Hunger is highly prevalent and still a major problem in many African countries.A more effective approach to food self-sufficiency in Africa is to develop a modern agricultural production *** this is still being explored,there are a few partially successful cases that have been noted internationally;these incl

关键词： enough Africa sustainable

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