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共检索到52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.184.8
- 摘要：
- was applied to corn, soybean, sorghum, sunflower, oats, barley, wheat and hay in Illinois, Indiana, Iowa, Michigan, Minnesota, North Dakota, Ohio and Wisconsin
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.1
- 摘要：
- was applied to corn, soybean, sorghum, sunflower, oats, barley, wheat and hay in Illinois, Indiana, Iowa, Michigan, Minnesota, North Dakota, Ohio and Wisconsin
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.6
- 摘要：
- was applied to corn, soybean, sorghum, sunflower, oats, barley, wheat and hay in Illinois, Indiana, Iowa, Michigan, Minnesota, North Dakota, Ohio and Wisconsin
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：
- was applied to corn, soybean, sorghum, sunflower, oats, barley, wheat and hay in Illinois, Indiana, Iowa, Michigan, Minnesota, North Dakota, Ohio and Wisconsin
Data from: Adaptation with gene flow across the landscape in a dune sunflower
- 负责人：
- DOI：
- doi:10.5061/dryad.158pb518
- 摘要：
- alone. Asymmetry in effective population sizes and numbers of migrants per generation was detected using coalescent modelling with Bayesian inference, which
Data from: Evolution of nutrient resorption across the herbaceous genus Helianthus
- 负责人：
- DOI：
- doi:10.5061/dryad.503ds62
- 摘要：
- ecially in herbs. We measured nitrogen and phosphorus resorption on pre-selected leaves across the Helianthus (sunflower) genus in a common garden in Athens, GA
Data from: A study of the transit amplification divisions during spermatogenesis in Oncopeltus fasciatus to assess plasticity in sperm numbers
- 负责人：
- DOI：
- doi:10.5061/dryad.q57n9h7
- 摘要：
- tility and shorter lifespans than males from the same population fed the adapted diet of sunflower seeds. We examined the proximate mechanisms by which milkweed-fed
Data from: Pollination benefits are maximized at intermediate nutrient levels
- 负责人：
- 关键词：
- agricultural intensification ecosystem services incremental contribution interactions nitrogen fertilization pollinators
- DOI：
- doi:10.5061/dryad.42d2r
- 摘要：
- interactions are poorly understood. We measured pollination benefits to yield in sunflower, combining a gradient in insect pollination (0, 25, 50, 100
A farm-level assessment of labour use in Eastern and Southern Africa. Myths and implications for mechanization.
- 负责人：
- Baudron, Frédéric
- 关键词：
- DOI：
- doi:10.7910/dvn/61pwtb
- 摘要：
- age) and a mean annual temperature of 22 °C (10 years average). Sandy clay loam and clay soils are the major soil types. The main crops are maize, beans, pigeonpea, sunflower
Data from: An empirical assessment of a single family-wide hybrid capture locus set at multiple evolutionary timescales in Asteraceae
- 负责人：
- DOI：
- doi:10.5061/dryad.60vb576
- 摘要：
- and proportions of parsimony informative characters estimated. The impacts of the analyzing alternative datasets, removing long branches and type of analysis
