紫云英翻压与早稻移栽最佳间隔时间研究  

The Optimal Interval between Application of Astragalus Sinicus and Transplantation of Early Season Rice

作　　者：陈云峰[1] 罗时明 李双来[1] 胡诚[1] 乔艳[1] 刘东海[1] 王晓芳[3] 

机构地区：[1]湖北省农业科学院植保土肥研究所,武汉430064 [2]湖北省通城县农业局,湖北通城437400 [3]湖北省农业科学院农业质量标准与检测技术研究所,武汉430064

出　　处：《湖北农业科学》2014年第18期4288-4289,4293,共3页Hubei Agricultural Sciences

基　　金：公益性行业(农业)科研专项经费资助项目(201103005-02-03);湖北省农业科学院青年基金项目(2011NKYJJ07)

摘　　要：依托通城县5年紫云英-早稻-晚稻定位试验,研究早稻移栽前5、10、15 d翻压紫云英对早稻产量和产量构成因子的影响,以探索紫云英翻压与早稻移栽最佳的间隔时间。结果表明,与单施化肥处理相比,早稻移栽前5 d翻压紫云英增产效果最好,移栽前10 d翻压紫云英增产效果次之,移栽前15 d翻压紫云英增产效果较差。移栽前15 d翻压紫云英处理的穗粒数显著低于移栽前5、10 d翻压紫云英处理的穗粒数。总之,紫云英翻压与早稻移栽间隔时间较短有利于水稻产量的提高。In order to explore the optimal interval between application of Astragalus Sinicus （AS） and transplantation of early rice,22 500 kg/hm^2 AS was applied at 5,10,15 days prior to transplantation of early season rice （-5 d,-10 d and-15 d）,respectively.The effect of interval between application of AS and transplantation of early season rice on rice yield and yield contributing factors was surveyed through a 5-year AS-early season rice-late season rice field experiment in Tongcheng county,Hubei province.The results showed that the treatment of-5 d gained best yield,followed by-10 d,while the treatment of-15 d didn＇t show yield-increasing effect and significantly decreased the number of grains per spike.The shorter interval between AS application and transplantation of early season rice was beneficial for the increase of yield.

关 键 词：紫云英(Astragalus sinicus) 早稻 产量构成因子 

分 类 号：S154.1[农业科学—土壤学]