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共检索到355条 ,权限内显示50条;
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：
- rs of these experiments, the average production rates were about 27 mg/m2/hr for the first crop and 22 - 34 mg/m2/hr for the second crop, resulting in estimated
Data from: Insect pollination is at least as important for marketable crop yield as plant quality in a seed crop
- 负责人：
- Fijen, Thijs
- 关键词：
- crop yield crop pollination agricultural management functional groups species richness visitation rate agro-ecology structural equation modeling
- DOI：
- doi:10.5061/dryad.640v21f
- 摘要：
- made similar contributions to marketable seed yield of hybrid leek (Allium porrum). Relative to the median, a 25% improvement of plant quality
Data from: Do polycultures promote win-wins or tradeoffs in agricultural ecosystem services? A meta-analysis
- 负责人：
- 关键词：
- yield additive design substitutive design agroecosystems biological control intercropping multifunctionality polyculture ecosystem services
- DOI：
- doi:10.5061/dryad.m1m50
- 摘要：
- polycultures can produce win-win outcomes between per-plant, and potentially per-unit area, primary crop yield and biocontrol. Biocontrol services ar
High Sunflower Densities as a Weed Control Strategy in an Integrated Crop-Livestock System
- 负责人：
- 关键词：
- Plant Biology
- DOI：
- doi:10.6084/m9.figshare.9796346
- 摘要：
- crop is a practicable management to control weeds and to gain higher yield under free-herbicide conditions.
High Sunflower Densities as a Weed Control Strategy in an Integrated Crop-Livestock System
- 负责人：
- 关键词：
- Plant Biology
- DOI：
- doi:10.6084/m9.figshare.9796346.v1
- 摘要：
- crop is a practicable management to control weeds and to gain higher yield under free-herbicide conditions.
Mauritius Hemp [Furcraea Foetida] field, Malawi, ca.1911
- 负责人：
- 关键词：
- agriculture farming Croplands
- DOI：
- doi:10.25549/impa-c123-79835
- 摘要：
- e cloud covered mountains in the distance. The photograph has been taken by an A. J. Storey, who worked on developing crops with good yields. ? From a Photograph
Data from: Highly diversified crop-livestock farming systems reshape wild bird communities
- 负责人：
- DOI：
- doi:10.5061/dryad.rjdfn2z62
- 摘要：
- and crop production might promote a diversity of habitats useful to native birds foraging across otherwise-simplified landscapes. At the same time, these features mig
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：
- In the pursuit of maximizing agricultural yields and profits, crop management under intensive agriculture has reduced the heterogeneity of crop sward
Technical thinning age of eucalyptus trees grown in crop-forest integration systems
- 负责人：
- DOI：
- doi:10.6084/m9.figshare.9985862
- 摘要：
- followed a completely randomized block design, with four replicates and three production systems (crop monoculture, forest planting monoculture, and crop-forest
Bicol Multipurpose Survey (BMS), 1983: [Philippines];;Archival Version
- 负责人：
- 关键词：
- DOI：
- doi:10.3886/icpsr06889
- 摘要：
- : Input Costs DS41: Rice Crop Production: Hired Labor (Men, Women, Children Aged 6-15 Years) DS42: Rice Crop Production: Wages for Hired Labor DS43
