【摘 要】
：
配方施肥是国家单列“七五”期间农业生产重点推广项目。根据省统一试验方案,我们于1988～1990年在10多个乡、30多个点进行了优化配方施肥小区试验,建立了两个肥力等级的肥料
【机 构】
：
阜新县农业技术推广中心土肥站,阜新县农业技术推广中心土肥站,阜新县农业技术推广中心土肥站,
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配方施肥是国家单列“七五”期间农业生产重点推广项目。根据省统一试验方案,我们于1988～1990年在10多个乡、30多个点进行了优化配方施肥小区试验,建立了两个肥力等级的肥料效应函数模型。模型计算出的最佳经济施肥量的实施产量,比县平均施肥量的产
Formulation and fertilization is a national single column “75” during the agricultural production promotion project. According to the unified experimental plan of the province, we carried out the experiment of optimized formula fertilization area in more than 10 townships and more than 30 points from 1988 to 1990, and established two fertilizer effect function models of fertility level. The model calculated the best economic output of fertilizer production, the average output of fertilizer than the county
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