中低产田水稻氮肥施用技术研究  

Study of nitrogen fertilizer application techniques of middle and low-yield rice field

作　　者：龚玉琴[1] 崔亚玲 马晓红[1] 王梅琴[1] 

机构地区：[1]银川市农业技术推广服务中心,宁夏银川750004 [2]银川市金凤区农牧局农业技术推广服务中心,宁夏银川750001

出　　处：《农业科学研究》2008年第4期27-29,共3页Journal of Agricultural Sciences

基　　金：农业部"测土配方施肥补贴项目"

摘　　要：试验研究了宁夏灌区中低产田水稻氮肥基追比例对水稻产量的影响.研究结果表明:插秧稻氮肥65%基施、35%追施的产量最高,水稻产量为13 436.5 kg/hm2.50%基肥、50%追肥的产量次之,水稻产量为12 957.0 kg/hm2.直播稻氮肥50%基施、50%追施的产量最高,水稻产量为7 403.0 kg/hm2.氮肥65%基施、35%追施的产量次之,水稻产量为7 253.5 kg/hm2.The influences of basic fertilizer and topdressing fertilizer percentage of N on the yield of rice in lowmiddle producing farmland in Ningxia irrigation region were studied. The results showed that： the highest rice yield was at 13 436.5 kg/hm^2 with the application of 65% basic fertilizer and 35% as topdressing fertilizer for transplamed ricer while with the application of 50% basic fertilizer and 50% as topdressing fertilizer, the rice yield was at 12 957.0 kg/hm^2. For direct seeding rice, the highest rice yield was 7 403. 0 kg/hm^2 with the application of 50% as basic fertilizer and 50% as topdressing fertilizer, while with the application of 65% as basic fertilizer and 35% as topdressing fertilize, the rice yield was at 7 253. 5 kg/hm^2.

关 键 词：水稻 中低产田 氮肥基追比例 

分 类 号：S511[农业科学—作物学]