筛选
科学数据
统计数据
共检索到612条 ,权限内显示50条;
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.7
- 摘要：
- Net primary productivity (NPP) of agricultural regions, where most of the land is sown with a few well-studied crops, was estimated from crop
Data from: Leaching losses of dissolved organic carbon and nitrogen from agricultural soils in the upper US Midwest
- 负责人：
- DOI：
- doi:10.5061/dryad.0p2ngf1xb
- 摘要：
- ) and perennial bioenergy crops (switchgrass, miscanthus, native grasses, restored prairie, and poplar) grown between 2009 and 2016 in a replicated field experiment
Data from: Mass-flowering crops dilute pollinator abundance in agricultural landscapes across Europe
- 负责人：
- Dainese, Matteo
- 关键词：
- agricultural intensification agri-environment schemes biofuels crop pollination ecosystem services field boundaries landscape composition non-crop habitats semi-natural habitats spillover
- DOI：
- doi:10.5061/dryad.fd11f
- 摘要：
- Mass-flowering crops (MFCs) are increasingly cultivated and might influence pollinator communities in MFC fields and nearby semi-natural habitat
Data from: Comparative genomic and transcriptomic analyses reveal the hemibiotrophic stage shift of Colletotrichum fungi
- 负责人：
- Gan, Pamela
- DOI：
- doi:10.5061/dryad.r4026
- 摘要：
- and then cause host death in later, necrotrophic growth. Among these, Colletotrichum spp. are devastating pathogens of many crops. Identifying expanded classes
Data from: Legacy effects of diversity in space and time driven by winter cover crop biomass and nitrogen concentration
- 负责人：
- Barel, Janna
- 关键词：
- crop rotation soil organic matter soil mineral nitrogen plant-feeding nematodes plant-soil feedback plant productivity agroecology winter cover crops agriculture plant diversity
- DOI：
- doi:10.5061/dryad.sp21b
- 摘要：
- ) and nitrogen concentration (quality), soil mineral nitrogen, soil organic matter, and reduce plant-feeding nematode abundance. Additionally, we predicted that preceding crops
Policies for genetically modified crops in developing countries: the role of non-state actors
- 负责人：
- 关键词：
- International Relations biotechnology non-governmental organizations (NGOs) corporations\/companies (MNCs) Argentina Brazil India transgenic genetic engineering agriculture
- DOI：
- doi:10.25549/usctheses-m155
- 摘要：
- for these differences. A second hypothesis is that variation in institutional context accounts for the differences in policies towards rDNA crops. Differences
Khalil:CH4 and N2O Emissions From Sub-tropical Rice Agriculture In China
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.883.2
- 摘要：
- . The region has a sub-tropical climate which allows two crops of rice to be grown every year. The prevailing agricultural practices create a complex i
Khalil:CH4 and N2O Emissions From Sub-tropical Rice Agriculture In China
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.883.1
- 摘要：
- . The region has a sub-tropical climate which allows two crops of rice to be grown every year. The prevailing agricultural practices create a complex i
Khalil:CH4 and N2O Emissions From Sub-tropical Rice Agriculture In China
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.883.4
- 摘要：
- . The region has a sub-tropical climate which allows two crops of rice to be grown every year. The prevailing agricultural practices create a complex i
United States Agriculture Data, 1840 - 2012;;Version 2
- 负责人：
- 关键词：
- DOI：
- doi:10.3886/icpsr35206.v2
- 摘要：
- : 1950 Crops, County and State, Dataset 2\t\t\t\t\t\tDS23: 1950 County, Dataset 3\t\t\t\t\t\tDS24: 1950 County and State, Dataset 4\t\t\t\t\t\tDS25: 1954
