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经济合理用肥,提高肥料投资的经济效益,是提高农业生产经济效益的重要环节,很早就引起农业科学工作者的重视。国外在五十年代初期,已经在应用肥料效应方程式,计算经济效益最佳施肥料。近年来,国内也陆续有所介绍。要计算经济效益最佳施肥量,首先要建立肥料一作物产量反应方程,或简称为肥料效应方程,以反映
Economical and rational use of fertilizer to improve the economic efficiency of fertilizer investment is to improve the economic efficiency of agricultural production an important part of agricultural science has long attracted the attention of workers. Abroad In the early 1950s, the fertilizer effect equation was applied to calculate the best economic benefit fertilizer. In recent years, China also introduced one after another. To calculate the optimal economic benefits of fertilizer, first of all to establish fertilizer-crop response equation, or simply fertilizer effect equation to reflect