涝渍对大豆、棉花产量的影响研究  

Study on effect of waterlogging to the yield of soybean and cotton

作　　者：朱建强 欧光华 张文英[3] 刘德福 程伦国 吴立仁 

机构地区：[1]湖北省涝渍地开发工程技术研究中心,荆州434103 [2]荆州市水利局 [3]湖北农学院农学系 [4]荆州市四湖工程管理局排灌试验站

出　　处：《湖北农业科学》2000年第4期25-27,共3页Hubei Agricultural Sciences

基　　金：湖北省科委"九五"重大科技攻关项目! 962P0 5 0 3;湖北省教委资助项目! 93G0 0 5研究内容之一

摘　　要：研究了大豆结荚期和棉花花铃期持续受渍对产量的影响。结果表明 :随SEW3 0 值 (地下水埋深小于 30cm的累积值 )增大 ,大豆和棉花产量均呈现下降趋势 ,相比之下 ,棉花花铃期受渍比大豆结荚期受渍对产量影响更敏感 ,这表明在产量形成的关键生育期大豆的抗渍能力比棉花要强。棉花花铃期受渍对果节成铃分布和果枝成铃分布没有明显影响 ,但影响结铃数和成铃数 ,从而造成棉花减产 ,随充分受渍持续时间不同 ,减产幅度在 1 8 34 %～ 41 1 0 %。The crop yield was greatly influenced when the crop to be continuously waterlogged during the period of soybean with fruits and flower boll period of cotton was studied.The results show that the yield of both soybean and cotton decreased with the increasing of SEW 30 value.Cotton was more sensitive than that of soybean in the indicated period.It indicated that soybean has higher waterlogging resistance.It showed that little differences in the distribution of fruit node and fruit branch under the crop waterlogged stress during the flower and boll period of cotton.But it reduced the yield because of less boll number.

关 键 词：大豆 棉花 持续受渍 作物产量 涝渍 

分 类 号：S422[农业科学—植物保护] S565.101