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生产实践和科学实验表明,在一定范围内粮食产量随施肥量的增加而增加。对一个时期的施肥与产量资料进行统计分析,确立施肥与产量问的某种函数关系,对于制定粮食生产、化肥用量及结构规划,进行以产经济施肥,以致农业经济宏观调控是十分必要的。本文拟通过四平市粮食产量与施肥品种、用量资料的相关分析,并根据90年代粮食发展规划提出化肥(NPK)结构及用量规划。
Production practice and scientific experiments show that in a certain range of grain yield increase with the increase of fertilizer. The statistical analysis of fertilization and yield data in a period of time and the establishment of some kind of functional relationship between fertilization and yield asked for the formulation of grain production, chemical fertilizer consumption and structural planning, to produce fertility and economic development so that agricultural macroeconomic regulation and control is very necessary. Based on the correlation analysis of grain yield, fertilizer varieties and dosage data in Siping City, this paper proposes the structure and dosage plan of fertilizer (NPK) according to the grain development plan of the 1990s.