玉米一次深施复合肥对产量及施肥效率的影响

Studies on Effect of Once Deep Application of Multi-Elements Fertilizer to Yield and Fertilizer Efficiency of Maize

通过田间试验,研究不同长效复合肥对玉米产量及施肥效率的影响。试验结果表明,一次深施复合肥比追施尿素增产,增产幅度为5.2%～9.8%。同时比一次深施加长效剂的尿素更增产。深施长效复合肥能提高玉米的生长势,同时降低玉米的空秆率。玉米一次深施复合肥能提高肥料的利用率,特别是提高氮肥的利用率;能提高经济效益,每公顷可增收507.7元。

Field experiment was carried out to study the effects of different long-effect multi-elements fertilizers on the yield and fertilizer efficiency of maize. The results showed that in comparison with deep application of urea, application of multi-elements fertilizer raised the yield of maize by 5.2-9.8%. And the effect was more significant when it was compared with application of long-effect urea. Deep application of long-effect multi-element fertilizer raised growing vigor of maize and lowered the ratio of empty stalk. Fertilizer efficiency was also improved, especially nitrogen fertilizer. The income of farmers was increased by 507.7 yuan RMB per hectare.