摘要
通过田间试验,研究了粳稻武育粳33的营养特性、需肥规律与肥料效应。结果表明,在生育前期,武育粳33对氮、磷的需求量大,中后期增加了对钾素的吸收;氮对其产量构成因子的影响要显著高于磷和钾;结合模拟的最佳施肥量和其经济施肥量,鄂北地区中等肥力条件下武育粳33的推荐施肥量为N 240~280 kg/hm^2、P_2O_580~100kg/hm^2、K_2O 90~135 kg/hm^2。
A field experiment was conducted to study the nutrition characteristics and the fertilizer effects of japonica rice, using Wuyugeng 33 as material. The results showed that Wuyugeng 33 needs more nitrogen and phosphorus in early growth stage, but needs more potassium in the late growth stage. The effect of nitrogen on yield components was significantly higher than that of phosphorus and potassium. By model simulations, the most suitable number of fertilizer is N 240～280 kg/hm2, P205 80-100 kg/hm2 and K2O 90～ 135 kg/hm2 in north area of Hubei under medium fertility conditions.
作者
张爱丽
曾祥志
万龙
杨利
刘勇
汪光友
ZHANG Aili1, ZENG Xiangzhi2, WAN Long2, YANG Li3, LIU Yong1, WANG Guangyou1(1 Nanzhang County Agricultural Technology Promotion Center, Nanzhang, Hubei 441500, China; 2 Qinghe Farm Agricultural Technology Promotion Center, Nanzhang, Hubei 441522, China; 3 Institute of Plant Protection, Soil and Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, Chin)
出处
《中国稻米》
2018年第2期91-95,99,共6页
China Rice
基金
国家重点研发计划项目(2016YFD0200807)
国家科技支撑计划项目(2014BAD14B05)
湖北省农业科技创新中心项目(2016-620-000-001-019)
关键词
粳稻
武育粳33
营养特性
施肥效应
japonica rice
Wuyugeng 33
nutrition characteristics
fertilizer effects
