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本文是作者1992—1995年腐植酸多元复合肥的效应研究部分内容。系针对玉米、小麦需肥特点和土壤养分概况,通过多点田间试验筛选出腐植酸多元复合肥的最佳配方。试验结果表明:该肥料具有速效性和长效性,养分元素利用率高,小麦、玉米等作物可实现年周期一次投肥,节省工时,减少田间作业环节,节肥效果显著。能协调养分,培肥地力,作物生长发育增强,明显改善了作物构成因素,由于根系发达,长势稳健,抗逆性明显提高,小麦品质得到了改善。该肥料比习惯施肥,等养分无机复合肥均有显著的增产效果。比习惯施肥亩增产26％,比等养分无机复合肥增产11.76％,经济效益高,明显好于其它肥料。该肥料宜作基肥施用,苗期不必追肥。本文还讨论了该肥料对土壤肥力的影响。
This article is the author of 1992-1995 humic acid compound fertilizer part of the study. According to the requirement of corn and wheat, and the nutrient profile of soil, the optimal formula of humic acid compound fertilizer was screened through multi-point field experiments. The test results show that the fertilizer has quick-acting and long-acting efficiency and high utilization rate of nutrient elements. Crops such as wheat and corn can be fertilized once a year, saving man-hours and reducing field operations, and the fertilizer-saving effect is remarkable. Can coordinate nutrients, fertilize fertility, crop growth and development increased significantly improved crop composition factors, due to the developed root system, steady growth, significantly improved resistance, wheat quality has been improved. The fertilizer than conventional fertilization, and other nutrients have significant inorganic compound fertilizer yield. 26% more than the conventional fertilization mu, yield 11.76% more than other nutrients and inorganic fertilizers, high economic benefits, significantly better than other fertilizers. The fertilizer should be used as basal fertilizer, seedling need not topdressing. This article also discusses the effect of the fertilizer on soil fertility.