Effect of Controlled Release Nitrogen Fertilizer Application Position on Yield and Nutrient Utilization of Summer Maize
Li Zishuang
Tan Deshui
Zhao Tongkai
Li Hongjie
Wang Wei
Zhao Wenlu
Zhang Guixiang
Wang Qiang
Abstract：In order to investigate the effect of one-time application location of controlled release nitrogen fertilizer on yield and nutrient utilization of summer maize, through the field location experiments for two years, compared with the ordinary optimal nitrogen fertilization, the effects of different locations of one-time application of controlled release nitrogen fertilizer on yield, nutrient accumulation and utilization of summer maize were studied.The results showed that compared with the optimized fertilization (T2), the hierarchical application of controlled release fertilizer (T5) could effectively increase the yield of summer maize.In 2015 and 2016, the harvest yield increased by 5.64% and 3.97%;the amount of nitrogen accumulation increased by 25.07 kg/hm2;the ratio of nitrogen translocation to grain increased by 5.41 percentage points;the nitrogen utilization rate increased by 29.96%;the net income of farmers increased by 1 137.27 yuan/hm2.
Keywords：Summer maizeControlled release nitrogen fertilizerFertilization positionN use efficiency
Publication Date：2017-06-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 79-82 )