...中的施肥则要求按照田块中不同养分水平区域施用不同量的肥料，这就是精准农业中的 变量施肥技术 （ Variable rate fertilization ）。这种方法通常可提高肥料的利用率和施肥的经济效益，并减少肥料浪费以及对环境的不良影响。
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变量施肥技术实现了施肥机行进间按需调控施肥量，可有效地提高肥料利用率、增加利润和减轻环境污染。
It realizes to control the fertilize capacity with the machine traveling. It can availably improve the fertilizer utilize rate and profit and alleviate the environmental pollution.
精准农业土壤采样技术是变量施肥技术获取土壤养分信息的重要手段，土壤养分测定值是生成施肥处方图的重要数据之一。
Soil sampling technique was one of ways of getting the information of soil nutrition. And the tested results are very important to making a reasonable prescription map.
变量施肥技术是精确农业中的重要组成部分，变量施肥技术的实现方法主要有两种，即基于实时传感器和基于电子处方图。
There are main two methods to implement VRF technology. One is map-based application and another is real-time sensor-based and control-based application.
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