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采用两年定位试验,研究“莲味宝”有机无机复合肥对玉米增产效果及土壤理化性状的影响。结果表明:施“莲味宝”有机无机复合肥1 050 kg/hm2玉米籽粒产量最高,为7 570.5kg/hm2,比对照增产46.4%,施用有机无机复合肥比施等氮量尿素玉米增产4.7%,行粒数增加1.8粒,单株鲜、干重分别增加0.5 kg和0.002 kg,土壤有机质、全氮、有效磷、速效钾分别增加0.488%、0.0097%、4.1 mg/kg、1.3 mg/kg。
A two-year experiment was conducted to study the effects of “Lianweibao” organic-inorganic compound fertilizer on corn yield increase and soil physical and chemical properties. The results showed that the yield of 1050 kg / hm2 maize was the highest, which was 7 570.5 kg / hm2, increased 46.4% compared with the control. The application rate of organic-inorganic compound fertilizer was higher than that of the urea nitrogen maize The yield of soil organic matter, total nitrogen, available phosphorus and available potassium were increased by 0.488%, 0.0097%, 4.1 mg / kg and 1.3 mg / kg.