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1989—1991年在河南省开封县粗砂潮土地,对生育期非灌溉小麦亩底施有机肥0-6000公斤的田间小区和微区试验结果,平均增产27.2—67.1%。小麦产量与有机肥用量关系符合典型一元二次回归效应方程。获得小麦最高产量的施用量为每亩有机肥4724.2公斤,最佳用量为3350.6斤公斤,经济合理用量为2663.8公斤。施用有机肥并能显著改进小麦的产量结构,改善砂土理化性状。具有良好的培肥改土效果。
In 1989-1991, in Kaifeng County, Henan Province, coarse-grained tidal flat land was used to increase the yield of 27.6-67.1% on average in field plots and microdomains from 0-6000 kg of organic fertilizer per mu of non-irrigated wheat during the growing period. The relationship between wheat yield and organic fertilizer consumption is in accordance with the typical quadratic regression equation. The highest yield of wheat was 4724.2 kg of organic fertilizer per acre, the best dosage was 3350.6 kg kg, and the economically reasonable dosage was 2663.8 kg. Application of organic fertilizer can significantly improve the yield structure of wheat and improve the physical and chemical properties of the sand. Good soil fertility improvement effect.