玉米肥料利用率试验研究

Experimental Study on Fertilizer Use Efficiency for Corns

为探索当地土壤种植玉米对氮、磷、钾肥料所吸收的养分利用状况,指导农民配方施肥,以肥料成本低投入,达到高产出、提高产值的目的,特设置田间肥效试验。结果表明,玉米在配方施肥全肥区施用纯氮270 kg/hm2、纯磷90 kg/hm2、纯钾180 kg/hm2,计算得出玉米氮、磷、钾肥利用率分别为31.4%、16.7%、40.3%。

In order to explore the utilization of nutrients absorbed by nitrogen,phosphorus and potassium fertilizers in local soil,and to guide farmers to apply fertilizer formula,a field fertilizer efficiency experiment was set up in order to achieve high output and increase output value with low fertilizer cost and low input.The results showed that pure nitrogen 270 kg/hm2,pure phosphorus 90 kg/hm2 and pure potassium 180 kg/hm2 were applied in the whole fertilizer area of formula fertilization,and the utilization rates of nitrogen,phosphorus and potassium in corn were 31.4%,16.7%and 40.3%,respectively.