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通过一年两季田间试验,探讨了6种不同缓/控释肥料对玉米的作用效应,表明:缓/控释肥料田间施用量600 kg/hm2优于施用量450 kg/hm2;控释肥B5、B6和缓释肥B3增产效应较好,作为基肥一次性施入,控效时间长,能满足玉米全生育期生长发育对养分的需求,植株持绿性优于其他肥料处理区,与施化肥比较增产6.7%~0.5%;B5控释肥对增加植株株高、穗高和茎粗的作用效应较大,B3缓释肥对增加茎粗的作用较明显;各缓/控释肥单位养分增产玉米的养分利用率优于施用化肥,施用各缓/控释肥偏生产力优于施用化肥。我们认为缓/控释肥料在玉米生产上具有广阔的应用前景。
Effects of six kinds of slow / controlled release fertilizers on maize were discussed through field experiments in two seasons in each year. The results showed that the application rate of 600 kg / hm2 of slow / controlled release fertilizer was better than that of 450 kg / hm2; B5, B6 and slow-release fertilizer B3 had a good yield-increasing effect. As a one-time application of basal fertilizer, the control effect could be long enough to meet the nutrient requirement of growth and development during the whole growth period of maize. Fertilizer application increased by 6.7% ~ 0.5%. B5 controlled release fertilizer had a greater effect on increasing plant height, panicle height and stem diameter, and B3 slow-release fertilizer had greater effect on increasing stem diameter. The slow / controlled release fertilizer Nutrient yield per unit of corn yield is better than the application of chemical fertilizers, the application of slow / controlled release fertilizer is better than the partial application of fertilizers. We believe that slow / controlled release fertilizer has broad application prospects in corn production.