肥料利用率是指当季作物从所施肥料中吸收的养分占肥料中该种养分总量的百分数。利用率可通过田间试验和室内化学分析，按下列公式求得：

Fertilizer use efficiency is the percentage of the total nutrient in the fertilizer that is absorbed by the crop in the current season. The utilization rate can be obtained by field test and laboratory chemical analysis according to the following formula:

在目前栽培技术管理水平下，化肥的利用率大致在以下范围： 氮肥为30-50%，磷肥10-15%，钾肥40-70%。

Current cultivation technology management level, the utilization rate of fertilizer is about 30-50% of nitrogen fertilizer, 10-15% of phosphorus fertilizer and 40-70% of potassium fertilizer.