筛选
科学数据
统计数据
共检索到128条 ,权限内显示50条;
Data from: High-yielding corn response to applied phosphorus, potassium, and sulfur in Nebraska
- 负责人：
- Wortmann, Charles
- DOI：
- doi:10.5061/dryad.p30c6
- 摘要：
- Nutrient management recommendations may change as yield levels and efficiency of crop production increase. Recommendations for P, K, and S were evaluated using results from 34 irrigated corn (Zea mays L.) trials conducted in diverse situations across Nebraska. The mean yield was 14.7 Mg ha?1 with adequate fertilizer applied. The median harvest index values were 0.52, 0.89, 0.15, and 0.56 for biomass, P, K, and S, respectively. Median grain yields were 372, 49, and 613 kg kg?1 of aboveground plant uptake of P, K, and S, respectively. The estimated critical Bray-1 P level for corn response to 20 kg P ha?1 was 20 mg kg?1 when the previous crop was corn compared with 10 mg kg?1 when corn followed soybean [Glycine max (L.) Merr.]. Soil test K was generally high with only three site-years <125 mg kg?1 Over all trials, application of 40 kg K ha?1 resulted in a 0.2 Mg ha?1 mean grain yield decrease. Application of 22 kg S ha?1 did not result in significant yield increase in any trial. Soil test results accounted for twice as much variation in nutrient uptake when soil organic matter (SOM) and pH were considered in addition to the soil test nutrient values. The results indicate a need to revise the current recommendation for P, to maintain the current K and S recommendations, and to use SOM and pH in addition to soil test nutrient values in estimating applied nutrient requirements for irrigated high yield corn production.
Data from: Responses of King penguin (Aptenodytes patagonicus) adults and chicks to two food-related odours
- 负责人：
- Cunningham, Gregory B.
- DOI：
- doi:10.5061/dryad.15pv1
- 摘要：
- Increasing evidence suggests that penguins are sensitive to dimethyl sulphide (DMS), a scented airborne compound that a variety of marine animals use
Data from: Optimization and kinetic study of methyl laurate synthesis using ionic liquid [Hnmp]HSO4 as a catalyst
- 负责人：
- DOI：
- doi:10.5061/dryad.22mb72d
- 摘要：
- . The efficiencies of three different catalysts, 1-methylimidazole hydrogen sulfate ([Hmim]HSO4), 1-methyl-2-pyrrolidonium hydrogen sulfate ([Hnmp]HSO4) and H2SO4, wer
Data from: Kinetics and mechanism of selenate and selenite removal in solution by sulfate-green rust
- 负责人：
- DOI：
- doi:10.5061/dryad.nk43478
- 摘要：
- This work investigated the removal of selenite and selenate from water by sulfate-green rust (GR). Selenite was immobilized by simple adsorption ont
Data from: The fate of phosphorus fertilizer in Amazon soya bean fields
- 负责人：
- Riskin, Shelby H.
- DOI：
- doi:10.5061/dryad.58qt0
- 摘要：
- to half of the sorption capacity of fast-reacting pools, most added P is bound in more slowly reacting pools. Our data suggest that this agricultural system
Data from: TSPO PET Using [18F]PBR111 reveals persistent neuroinflammation following acute diisopropylfluorophosphate intoxication in the rat
- 负责人：
- Lein, Pamela J.
- 关键词：
- Diisopropylfluorophosphate GFAP IBA1 positron emission tomography organophosphate neuroinflammation TSPO
- DOI：
- doi:10.5061/dryad.7c7b561
- 摘要：
- administered pyridostigmine bromide (0.1?mg/kg, im) 30?min prior to administration of DFP (4?mg/kg, sc), atropine sulfate (2?mg/kg, im) and 2-pralidoxime (25
Stream chemistry for core sites in Gwynns Falls: concentration of Cl, NO3, PO4, total N and P, SO4, dissolved oxygen, E. coli, plus temperature, pH, clarity, turbidity, isotopes, and pharmaceuticals
- 负责人：
- 关键词：
- DOI：
- doi:10.6073/pasta/ac102e6fed07d1abecf65f28d39e9ed6
- 摘要：
- (CIES) for analysis. Weekly analyses includes nitrate, phosphate, total nitrogen, total phosphorus, chloride and sulfate, turbidity
Stream chemistry for core sites in Gwynns Falls: concentration of Cl, NO3, PO4, total N and P, SO4, dissolved oxygen, E. coli, plus temperature, pH, clarity, turbidity, isotopes, and pharmaceuticals
- 负责人：
- 关键词：
- DOI：
- doi:10.6073/pasta/dfaa8b33f8b84ac1dfd947e9d57ccbe6
- 摘要：
- (CIES) for analysis. Weekly analyses includes nitrate, phosphate, total nitrogen, total phosphorus, chloride and sulfate, turbidity
Data from: Incremental analysis of vertebral centra can reconstruct the stable isotope chronology of teleost fishes
- 负责人：
- DOI：
- doi:10.5061/dryad.r6p27
- 摘要：
- and extracted bone collagen from each sample. We then measured the stable sulfur isotope ratios of each vertebral section and compared them with ?34S values
Data from: Previously unknown evolutionary groups dominate the ssDNA gokushoviruses in oxic and anoxic waters of a coastal marine environment
- 负责人：
- DOI：
- doi:10.5061/dryad.7gg25
- 摘要：
- , a taxonomic clade of gamma proteobacterial sulfur oxidizers. Members of SUP05 are abundant in Saanich Inlet and involved in carbon, nitrogen, and sulfur cycling
