Effect of sowing time on n, P, K and the nutrient accumulation of sweet corn seed.
不同播期对甜玉米籽粒n,p,K及可溶性糖的积累的影响研究。
Mathematic models between yield and N fertilizer and plant density for two peanut variety types were set up by using quadratic saturation D-optimization design under single-seed planting.
采用二次饱和D—最优设计建立了精播条件下不同类型花生品种N肥用量和密度与产量的数学模型，探讨肥料与密度的产量效应及优化配置。
Accumulation of n, P, K and sugar was increased during seed-filling stage in Ceratoides.
驼绒藜属植物种子形成过程中，N、P、K、糖等营养物质积累呈增加的趋势。
The maximum N absorption and K absorption of rape seed are under the N225 level.
不同施氮条件下，单、间作油菜地上部钾吸收量没有差异。
Zinc fertilizer increased contents of N, P, K, Fe, Cu and B of wheat seed, Boron fertilizer application promoted the absorption and accumulation of P, K, Zn and Mn in wheat grain;
增施锌对小麦氮、磷、钾、铁、铜和硼的吸收均有促进作用；施硼有利于小麦对磷、钾、锌和锰元素的吸收；
Zinc fertilizer increased contents of N, P, K, Fe, Cu and B of wheat seed, Boron fertilizer application promoted the absorption and accumulation of P, K, Zn and Mn in wheat grain;
增施锌对小麦氮、磷、钾、铁、铜和硼的吸收均有促进作用；施硼有利于小麦对磷、钾、锌和锰元素的吸收；
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