论文部分内容阅读
肥料利用率是指当季作物吸收营养元素的数量与施入土壤中肥料营养元素总量的百分数。一般情况下,肥料利用率越高,肥料的损失就越小。肥料利用率因肥料品种、施肥量、土壤状况、施用方法和作物种类等的不同而有很大差异。朝阳市的肥料利用率较低,化肥中氮素的
Fertilizer utilization refers to the amount of nutrient that is absorbed by crops in the crop and the percentage of nutrients that are applied to the soil. Under normal circumstances, the higher fertilizer utilization, the less fertilizer loss. Fertilizer utilization varies widely depending on the type of fertilizer, amount of fertilizer, soil condition, application method and crop type. Chaoyang City, lower utilization of fertilizer, nitrogen fertilizer