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Nitrogen use in double cropping soybean with non-fertilized winter oilseed crops

International Journal of Agricultural and Biological Engineering 2023年第2期16卷 159-164页

作者： Ronghao Liu Stephen Gregg Axel Garcia y Garcia College of Water Resources Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Shanxi Province Key Laboratory of Soil Environment and Nutrient Resources Taiyuan 030031China Department of Agronomy and Plant Genetics University of MinnesotaSt.PaulMN 55108USA Southwest Research and Outreach Center University of MinnesotaLambertonMN 56152USA

Sustainable intensification of cropping systems is a strategy to increase productivity and reduce disservices of conventional agroecosystems.Camelina[Camelina sativa(L.)Crantz]and field pennycress(Thlaspi arvense L.)are winter annual oilseed crops well suited to fill the fallow period between corn(Zea mays L.)and soybean[Glycine max(L.)Merr.]in the U.S.northern Corn Belt,but their inclusion may be limited by resource use limitations.A 2-year study was conducted from 2015 to 2017 in the U.S.upper Midwest to evaluate the effect of double cropping on winter oilseed crops and soybean productivity and economic performance.Treatments included relay-and sequential-cropped soybean with winter camelina and field pennycress,and monocrop soybean as control.Biomass and grain yield of winter oilseed crops were not affected by cropping system.Averaged over years and cropping systems,winter camelina resulted in more biomass,nitrogen(N)uptake and grain yield by 240,186 and 139% respectively,compared to field pennycress.Soybean biomass,N uptake and yield were higher in relay relative to sequential cropping.Relay soybean resulted in similar total grain yield(soybean+winter oilseed crop)compared to monocropped soybean.Double cropping soybean could maintain net return compared to monocropped soybean.Results indicate that double cropping winter oilseed crops with soybean can be economically viable in the U.S.upper Midwest.Yet,research aimed at optimizing yield through N and water use while improving ecosystem services is needed.

关键词： camelina pennycress relay cropping multiple cropping winter oilseed

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ENABLING CROP DIVERSIFICATION TO SUPPORT TRANSITIONS TOWARD MORE SUSTAINABLE EUROPEAN AGRIFOOD SYSTEMS

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Frontiers of Agricultural Science and Engineering 2021年第3期8卷 474-480页

作者： Antoine MESSEAN Loïc VIGUIER Lise PARESYS Jean-Noel AUBERTOT Stefano CANALI Pietro IANNETTA Eric JUSTES Alison KARLEY Beatrix KEILLOR Laura KEMPER Frédéric MUEL Barbara PANCINO Didier STILMANT Christine WATSON Helga WILLER Raul ZORNOZA French National Institute for Agriculture Food and Environment(INRAE)Eco-InnovF-78850 Thiverval-GrignonFrance French National Institute for Agriculture Food and Environment(INRAE)UMR AGIRToulouseFrance Council for Agricultural Research and Economics-Research Centre for Agriculture and Environment(CREA-AA) 00184 RomeItaly The James Hutton Institute InvergowrieDundeeDD25DAUK French Agricultural Research Centre for International Development(CIRAD) Persyst DepartmentF-34398 MontpellierFrance Research Institute of Organic Agriculture(FiBL) 5070 FrickSwitzerland Terres Inovia F-78850 Thiverval-GrignonFrance University of Tuscia Department of EconomicsEngineeringSociety and Business Organization01100 ViterboItaly Wallon Agricultural Research Centre(CRA-W) Sustainabilitysystems and prospectives DepartmentB-6800 LibramontBelgium Scotland’s Rural College(SRUC) Craibstone EstateAberdeen AB219YAUK Technical University of Cartagena Department of Agricultural EngineeringCartagenaSpain

European cropping systems are often characterized by short rotations or even monocropping,leading to environmental issues such as soil degradation,water eutrophication,and air pollution including greenhouse gas emissions,that contribute to climate change and biodiversity loss.The use of diversification practices(i.e.,intercropping,multiple cropping including cover cropping and rotation extension),may help enhance agrobiodiversity and deliver ecosystem services while developing new value chains.Despite its benefits,crop diversification is hindered by various technical,organizational,and institutional barriers along value chains(input industries,farms,trading and processing industries,retailers,and consumers)and within sociotechnical systems(policy,research,education,regulation and advisory).Six EU-funded research projects have joined forces to boost crop diversification by creating the European Crop Diversification Cluster(CDC).This Cluster aggregates research,innovation,commercial and citizen-focused partnerships to identify and remove barriers across the agrifood system and thus enables the uptake of diversification measures by all European value-chain stakeholders.The CDC will produce a typology of barriers,develop tools to accompany actors in their transition,harmonize the use of multicriteria assessment indicators,prepare policy recommendations and pave the way for a long-term network on crop diversification.

关键词： crop rotation lock-in intercropping multiple cropping networking

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