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1980年,我们在冬小麦上试用腐殖酸氮磷钾复合肥,效果良好。一、复合肥比等含量的无机化肥增产效果显著。西营复合肥厂搞了复合肥与无机化肥对比常规试验,试验地土壤含有机质1.25％,盐分0.07毫克/每百克土,水解氮43PPm,有效磷1.6PPm,有效钾90ppm。亩施复合肥200斤的,千粒重40.2克,亩产1,086.4斤;亩施等含量的尿素、过磷酸钙、硫酸钾混合肥的,千粒重39.4克、亩产888.8斤;而不施肥的对照地,千粒重仅
In 1980, we tested the humus nitrogen, phosphorus and potassium compound fertilizer in winter wheat, the effect is good. First, the compound fertilizer than the equivalent content of inorganic fertilizers significant effect. Xiyang Compound Fertilizer Plant engaged in routine tests of compound fertilizer and inorganic fertilizer. The tested soil contained 1.25% of organic matter and the salt content was 0.07 mg / 100 g of soil. The hydrolyzed nitrogen was 43 ppm, the available phosphorus was 1.6 ppm and the effective potassium was 90 ppm. Mushi compound fertilizer 200 pounds, 1000 grain weight 40.2 grams, per mu 1,086.4 pounds; Mushi other content of urea, superphosphate, potassium sulfate mixed fertilizer, grain weight 39.4 grams, 888.8 pounds per mu; without fertilization control, Thousand grain weight only