crop N uptake 作物吸氮
crop n utrient diagnosis method 作物营养化学诊断法
grain n crop 谷类罪
n-catch crop 填闲作物
green n crop fork 青饲料叉
green n crop dryer 牧草干燥机
crop response to n 作物吸氮效应
green n crop loader 装青饲料机
green n crop chopper 青刈饲料切断机
The quantity of crop nutrients transferred from the system, and the nutrient budget of N, P and K in soil were studied.
研究了在养分循环再利用的基础上采取不同施肥制度下作物养分移出量,并结合施肥量计算出土壤中N、P、K养分收支。
The relationship between mineralizable soil N and crop N uptake was studied under the condition of pot and field experoments respectively.
在盆栽和田间条件下,研究了作物吸氮与土壤可矿化氮的关系。
Soil microbial biomass N also involved in nitrogen supply to crop.
土壤中微生物氮也参与了对作物的供氮过程。
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