Effects of Slow-release Nitrogen on Dry Matter Accumulation,Translocation and Yield of Summer Maize  

作　　者：Yongfeng XING Guoli CHEN Changmin WEI Weimeng XU Wanyou SONG Guizhi LI Yanwei WAN Enzhong ZHOU Weifang LI 

机构地区：[1]Zhoukou Academy of Agricultural Sciences,Zhoukou 466001,China

出　　处：《Agricultural Biotechnology》2024年第3期11-13,共3页农业生物技术（英文版）

摘　　要：[Objectives]This study was conducted to investigate the effects of slow-release nitrogen fertilizer on dry matter accumulation and translocation of summer maize.[Methods]With Zhoudan 9 as the test variety,six different treatment were set up:blank control(CK1),slow-release urea 75 kg/hm^(2)(C1),slow-release urea 150 kg/hm^(2)(C2),slow-release urea 225 kg/hm^(2)(C3),slow-release urea 300 kg/hm^(2)(C4)and ordinary urea 300 kg/hm^(2)(CK2),to study the change law of dry matter accumulation and translocation in summer maize.[Results]Treatment slow-release urea 225 kg/hm^(2)(C4)showed summer maize yield,dry matter translocation between organs,grain contribution rate and proportion of grain dry matter in the full ripe stage higher than other treatments.Considering the weight loss and cost factors,slow-release urea 225 kg/hm^(2)(C3)could be recommended as the fertilizing amount for summer maize.[Conclusions]This study provides theoretical reference for rational selection of fertilizers for reducing fertilizer application and increasing fertilizer efficiency,and for production of summer maize in Shajiang black soil region.

关 键 词：Slow-release nitrogen fertilizer Summer maize Dry matter accumulation TRANSLOCATION 

分 类 号：S513[农业科学—作物学]