筛选
科学数据
统计数据
共检索到612条 ,权限内显示50条;
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Agrarian Typology of Provinces of European Russia at the Turn of the 20th Century;;Archival Version
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr08380
- 摘要:
- of land leased to peasants to investment property, per capita collection of crops and sown area, productivity of livestock, and cost of land and crops
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Agrarian Typology of Provinces of European Russia at the Turn of the 20th Century;;Version 1
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr08380.v1
- 摘要:
- of land leased to peasants to investment property, per capita collection of crops and sown area, productivity of livestock, and cost of land and crops
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: The influence of crop tiller density on the breeding performance of a cereal-nesting specialist
- 负责人:
- Setchfield, Rosemary
- 关键词:
- corn bunting breeding performance farmland bird cereal crop crop management nest site selection nest survival ecological trap edge effect intensive agriculture
- DOI:
- doi:10.5061/dryad.g4t3s
- 摘要:
- managed cereal crops therefore place their nests in areas of high tiller density which under normal sowing practice tend to occur close to crop edges wher
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
FAIRsharing record for: Food and Agriculture Organization (FAO)-IPGRI-Bioversity Multi-Crop Passport Descriptor;;CO_020
- 负责人:
- DOI:
- doi:10.25504/fairsharing.zkdn1d
- 摘要:
- variables for many crops. This ontology is one of these reference plant ontologies integrated within the Crop Ontology.;;The source of this descr
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Genetic diversity of oilseed rape fields and feral populations in the context of coexistence with GM crops
- 负责人:
- DOI:
- doi:10.5061/dryad.pc6sd
- 摘要:
- Despite growing concern about transgenes escaping from fields, few studies have analysed the genetic diversity of crops in an agroecosystem over seve
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Impacts of honeybee density on crop yield: a meta-analysis
- 负责人:
- Rollin, Orianne
- 关键词:
- Apis mellifera colony density visitation rate crop yield fruit set seed set fruit weight management strategy
- DOI:
- doi:10.5061/dryad.dj5f7kc
- 摘要:
- timal insect pollination are still unclear for most crops. Current management focuses on providing high densities of honeybees, but recommended densities are highly variable
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Sensitivity of the farmland bird community to crop diversification in Sweden: does the CAP fit?
- 负责人:
- Josefsson, Jonas
- 关键词:
- agri-environment schemes Common Agricultural Policy crop diversification farmland birds landscape composition landscape complexity mosaic landscapes multifunctional agriculture wildlife conservation land use
- DOI:
- doi:10.5061/dryad.0g794
- 摘要:
- r management under the CAP crop diversification measure (minimum of three crops for farms with 30+ ha), suggesting that this measure has generated little change
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Monarch butterfly and milkweed declines substantially predate the use of genetically modified crops
- 负责人:
- Boyle, John H.
- DOI:
- doi:10.5061/dryad.sk37gd2
- 摘要:
- its decline, and that of its milkweed (Asclepias spp.) host plant, have been linked to genetically modified (GM) crops and associated herbicide use. Her
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Winter cover crop legacy effects on litter decomposition act through litter quality and microbial community changes
- 负责人:
- Barel, Janna
- 关键词:
- crop rotation decomposition microbial community composition winter cover crop legacy effects standardised substrates nitrogen cycling carbon cycling
- DOI:
- doi:10.5061/dryad.pk5n1p4
- 摘要:
- and influenced by cropping history is unclear. 2.We grew WCC monocultures and mixtures in rotation with main crops Avena sativa and Cichorium endivia
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
South Africa Limpopo Basin Climate Change Adaptation Dataset
- 负责人:
- IFPRI-DATA;;International Food Policy Research Institute
- 关键词:
- DOI:
- doi:10.7910/dvn/ifcz7r
- 摘要:
- was designed to capture the diverse agricultural patterns in the basin area: farming strata, type of cultivation (dry land and irrigation), major and minor crops