摘要
通过对侧位施肥用氮量及运筹进行设计,研究其在黄海分公司的适应性,并进一步完善相关技术。结果表明,总氮量为345~375 kg/hm 2、尿素施用比例为2∶4∶4时,可显著提高水稻叶面积指数、成穗率、穗粒数、结实率等因素,其水稻产量与经济效益均最佳。该研究为减肥和水稻的高产、稳产提供理论依据。
To study the adaptability of lateral fertilization in Huanghai Co.Ltd.,application rate and proportion of lateral fertilization were designed.The results showed that when the total nitrogen content was 345-375 kg/hm 2 and the urea application ratio was 2∶4∶4,leaf area index,heading rate,grain number per ear,seed setting rate and other factors could be significantly improved,and the rice yield and economic benefits were the best.The study can provide theoretical basis for fertilizer reduction and high and stable yield of rice.
作者
孙凯文
熊瑞恒
裴昌林
时佩佩
陈兰金
杨序春
SUN Kai-wen;XIONG Rui-heng;PEI Chang-lin(Huanghai Agricultural Research Institute,Modern Agricultural Research Institute,Jiangsu Provincial Agricultural Reclamation and Development Corporation,Yancheng,Jiangsu 224624)
出处
《安徽农业科学》
CAS
2019年第21期166-169,共4页
Journal of Anhui Agricultural Sciences
关键词
侧位施肥
氮量
运筹
Lateral fertilization
Nitrogen content
Operation
