土壤盐碱度对棉花出苗和生长的影响  

Effects ofSoil Salinity on Cotton Emergence and Growth

作　　者：蔡利华 邰红忠 练文明 卢金宝 王文涛 吴博 戴翠荣 贺美球 Cai Lihua;Tai Hongzhong;Lian Wenming;Lu Jinbao;Wang Wentao;WuBo;Dai Cuirong;Hemeiqiu(Institute of Agricultural Science Research,1 st Division of Xinjiang Production and Construction Corps.,Alar,Xinjiang 843300,China)

机构地区：[1]新疆生产建设兵团第一师农业科学研究所,新疆阿拉尔843300

出　　处：《棉花科学》2022年第1期38-41,共4页Cotton Sciences

基　　金：新疆生产建设兵团第一师科研项目“优质、高产、抗病虫早中熟机采棉新品种培育及示范应用”(2020NY01);新疆生产建设兵团科技后补助计划(2021BA004);国家现代农业产业技术体系资金项目(CARS-15-52)。

摘　　要：采用速测仪测定缺苗严重的盐碱棉田的电导率值,以基础盐分高低划分四个处理,以出苗好的非盐碱斑处作对照,调查各处理的出苗率、出苗速度、保苗率、产量性状和棉花纤维品质。结果表明:棉田盐分越高,棉花出苗越晚、出苗速度慢、保苗率低、产量低;而且不同品种的耐盐碱性不同;出苗受抑制的界限(耐盐阀值)陆地棉为电导率值约400 ms/m,长绒棉为电导率值约500 ms/m。The electrical conductivity value of the saline-alkali cotton field with serious seedling shortage was measured by a quick measuring instrument.Take the non-saline-alkali spots as the CK,four treatments were divided according to the level of basic salinity to investigate the seedling emergence rate,seedling rate,seedling retention rate,yield traits and fiber quality of cotton.The results showed that the higher the salt content in cotton field,the later the cotton emergence,the slower the emergence rate,the lower the seedling retention rate and the yield.And the different varieties have different salt and alkali resistance.The limit of seedling inhibition(salt tolerance threshold)is about 400 ms/m for upland cotton,and about 500 ms/m for long-staple cotton.

关 键 词：土壤盐分 棉花 出苗率 电导率 产量 

分 类 号：S562.042[农业科学—作物学]