兴化市优质水稻减氮稳产生产技术初探  

Study on the High-quality Rice Production Technology with Reduced Nitrogen Application and Stabilized Yield in Xinghua City

作　　者：徐松春 邢志鹏[2] 周有炎[1] 王继汉 王洁[1] 陈春生[1] 钱有宏 姚存章 王正波[1] 杨年宝 XU Song-chun;XING Zhi-peng;ZHOU You-yan;WANG Ji-han;WANG Jie;CHEN Chun-sheng;QIAN You-hong;YAO Cun-zhang;WANG Zheng-bo;YANG Nian-bao(Agricultural Technology Extension Center in Xinghua City Jiangsu Province,Taizhou,Jiangsu 225700,China;Yangzhou University,Key Laboratory of Crop Genetics and Physiology in Jiangsu Province,Yangzhou Jiangsu 225009,China)

机构地区：[1]江苏省兴化市农业技术推广中心,江苏泰州225700 [2]扬州大学江苏省作物遗传生理重点实验室,江苏扬州225009

出　　处：《北方水稻》2019年第6期11-15,共5页North Rice

基　　金：国家粮食丰产增效科技专项2018YFD0300802;江苏省科研院校农技推广服务试点TG(17)005;国家现代农业产业技术体系示范基地GARS-01-60;江苏省现代农业(稻麦)产业技术体系项目JATS[2018]180

摘　　要：采用随机区组设计,2018年在兴化市进行了优质水稻减氮稳产生产技术的探索试验。试验设置了不施氮肥(N0)、当地大面积水稻生产施氮水平(N2)、比N2提高30%施氮量的施氮水平(N1)和比N2降低30%施氮量的施氮水平(N3),系统研究不同施氮量对优质食味粳稻南粳9108产量及其构成因素和部分农艺性状的影响。结果表明,水稻产量随着施氮量的增加而提高,增产效果主要是通过增加有效穗数,协调穗粒结构,增加群体颖花量来实现。与N2和N1处理相比,N3处理的水稻产量虽有下降,但差异不显著,也可以获得9.75 t·hm-2以上的产量。因此根据土壤肥力特征,适量减少氮肥投入,可实现减氮稳产的水稻生产,但生产安全性仍需要多年的验证。The exploration experiment of high-quality rice cultivation technology with reduced nitrogen and stable yield was carried out in Xinghua City in 2018.Using a randomized block design,the experiments set four treatments,none nitrogen treatments(N0),nitrogen application level based on the large area rice production(N2),30%higher nitrogen level than N2(N1),and 30%lower nitrogen level than N2(N3).Combined with the above treatments,effects of different nitrogen application rates on the yield,components and some agronomic characters of Nangeng-9108 were studied.Results showed that rice yield was increased with the increased nitrogen application.The higher yield was mainly achieved by the increasing of the number of total spikelets,which was mainly caused by the increasing panicles per hectare and grain number per panicle.Compared with N2 and N1 treatments,the yield of N3 treatment decreased,but the difference was not significant.In addition,the yield of N3 treatment was more than 9.75 t·hm-2.Thus,according to the characteristics of soil fertility,reducing the application amount of nitrogen fertilizer properly could gain a stable rice yield.Therefore the safety of this production technology should be verified for years.

关 键 词：兴化市 水稻 减氮施肥 产量 

分 类 号：S511.062[农业科学—作物学]