鲁西北平原玉米新型肥料应用效果研究

The Effect of New Fertilizer Application on Maize in Northwest Plain of Shandong

鲁西北平原区的玉米传统施肥通常采用底肥并追肥,肥料以氮肥为主,目前玉米氮磷钾肥利用率一般不到40%,因此由于降水和灌溉造成的土壤硝态氮淋失会严重破坏生态环境。本试验选用普通二铵、硝基双效肥、玉米控释肥、磷能肥四种肥料进行玉米新型肥料应用效果试验,结果表明新型玉米控释肥具有显著增产效果,建议鲁西北平原区施用玉米控释肥替代传统用肥,玉米控释肥的施用量以40kg/亩为宜。

The traditional fertilization of corn in the northwestern plain of Shandong usually uses base fertilizer and topdressing.The main fertilizer is nitrogen.At present,the utilization rate of corn by nitrogen,phosphorus,and potassium is generally less than 40%.Therefore soil nitrate nitrogen leaching due to precipitation and irrigation will seriously damage the ecological environment.In our research,four types of fertilizers such as ordinary diammonium,nitro dual-effect fertilizer,corn controlled release fertilizer,and phosphorus energy fertilizer were selected to test the application effect of new corn fertilizer.The results showed that the new corn controlled release fertilizer had a significant yield increase effect.We advise using corn controlled-release fertilizer instead of traditional corn fertilizer,and the application rate of corn controlled-release fertilizer is preferably 40 kg/667 m^2.