高档优质杂交晚稻桃优香占氮肥运筹技术研究  

Nitrogen Fertilizer Management Technique for High Quality Hybrid Rice(Taoyouxiangzhan)

作　　者：高汉清 欧阳江南 郭明选 刘大锷 覃立群 伍中胜 周锋 GAO Han-qing;OUYANG Jiang-nan;GUO Ming-xuan;LIU Da-e;QIN Li-qun;WU Zhong-sheng;ZHOU Feng(Taoyuan County Agricultural Research Institute, Taoyuan 415700, PRC;Taoyuan County Agricultural Bureau,Taoyuan 415700, PRC)

机构地区：[1]桃源县农业科学研究所,湖南桃源415700 [2]桃源县农业局,湖南桃源415700

出　　处：《湖南农业科学》2017年第6期38-40,共3页Hunan Agricultural Sciences

基　　金：湖南省做优做强湘米产业高档优质稻新品种选育项目(2012)

摘　　要：桃优香占是桃源县农业科学研究所选育的高档优质杂交晚籼中熟新组合,为了掌握该组合氮肥运筹规律,2015年进行氮肥用量试验,2016年进行氮肥运筹技术研究。2015年试验施纯N 120~210 kg/hm^2,随着氮素增加,单产提高,说明该组合耐肥性较强,对氮的需求较高。2016年试验施用量为纯N 180 kg/hm^2,P_2O_5 30 kg/hm^2,K_2O 135 kg/hm^2,氮肥按照基∶蘖∶穗肥比为5∶2∶3施肥方式,效果最好,单产最高。Taoyouxiangzhan is a high quality late season indica hybrid rice combination,in order to master the law of nitrogenmanagement in this combination,nitrogen amount test was conducted in2015and nitrogen management technique was studied in2016.In2015,the trial applied pure nitrogen120to210kg/hm2,with the increase of nitrogen,the yield per unit area increased,it proved that thefertilizer resistance of this combination was stronger,and the demand for nitrogen was higher.In2016,the trial applied pure nitrogen180kg/hm2,P2O530kg/hm2,K2O135kg/hm2,N fertilizer applied as base fertilizer:tillering fertilizer:panicle fertilizer by5∶2∶3,thencame with the best effect,the highest yield per unit area.

关 键 词：桃优香占 晚稻 氮肥运筹技术 桃源 

分 类 号：S143.1[农业科学—肥料学]