测土配方施肥对夏玉米产量及肥料利用率的影响

Effects of Soil Test Formula Fertilization on Yield and Fertilizer Utilization Rate of Summer Maize

针对玉米种植中存在重视氮肥,忽视磷肥、钾肥配合施用的问题,设置了常规施肥和配方施肥对比试验,研究不同施肥处理对夏玉米生长发育及肥料利用率的影响,以期提高玉米肥料利用率,为农户施肥提供更好的施肥建议。结果表明,配方施肥区玉米产量高达12586.95kg/hm^(2),较常规施肥区提高17.53%。测土配方施肥处理的氮肥、磷肥、钾肥的利用率分别为38.80%、26.89%、35.19%,而常规施肥处理的氮肥、磷肥、钾肥的利用率分别为12.42%、16.74%、11.57%,氮肥利用率提高26.38%,磷肥利用率提高10.15%,钾肥利用率提高23.62%。

View of the problem that farmers attach importance to nitrogen fertilizer and neglect the combined application of phosphat and potassium fertilizer in maize planting,The experiment sets up the conventional fertilization and formula fertilization contrastive test,The effects of different fertilization treatments on summer maize growth and fertilizer utilization rate were studied in order to improve maize fertilizer utilization rate and provide better fertilization suggestions for farmers.The results show that:The maize yield in the formula fertilization area was up to12586.95kg/hm^(2),Increasing by 17.53% compared with conventional fertilized area.The utilization rates of nitrogen fertilizer,phosphorus fertilizer and potassium fertilizer were respectively 38.80%,26.89% and 35.19% in the soil testing and formula fertilizing area,The utilization rates of nitrogen fertilizer,phosphorus fertilizer and potassium fertilizer were respectively 12.42%,16.74% and 11.57% in the conventional fertilizing area,The utilization rates of nitrogen fertilizer,phosphorus fertilizer and potassium fertilizer were increased by 26.38%,10.15% and 23.62%,respectively.