首页 | 本学科首页   官方微博 | 高级检索  
     检索      

河套灌区小麦耐盐性及其生态适宜区
引用本文:童文杰,刘倩,陈阜,文新亚,李中昊,高鸿永.河套灌区小麦耐盐性及其生态适宜区[J].作物学报,2012,38(5):909-913.
作者姓名:童文杰  刘倩  陈阜  文新亚  李中昊  高鸿永
作者单位:1中国农业大学农学与生物技术学院 / 农业部农作制度重点实验室, 北京 100193; 2内蒙古河套灌区义长灌域管理局, 内蒙古五原 015100
基金项目:国家公益性行业(农业)科研专项(200903001-2-3);北京市大学生科学研究与创业行动计划(35030001)资助
摘    要:以河套灌区小麦主栽品种永良4号为研究对象,选择20个农户地块定位观测,探讨不同土层土壤盐分含量对小麦产量及其构成因素的影响,研究小麦在该地区的耐盐性及其生态适宜区。结果表明,以小麦苗期0~10 cm土壤饱和浸提液电导率(ECe)作为根层盐分指标来评判小麦的耐盐性最具代表性,该土层对应的小麦耐盐指数为10.465;土壤盐分与小麦各产量构成因素之间均呈显著负相关,尤其与公顷穗数的相关性更强;根据小麦耐盐性分析,以小麦相对产量下降幅度≤10%、10%~25%、25%~50%和≥50%作为划分标准,将区域耕地划分为小麦生产最适宜区、适宜区、次适宜区和不适宜区,其对应的小麦苗期0~10 cm土壤ECe分别为≤4.972、4.972~6.747、6.747~9.196和≥9.196 dS m?1

关 键 词:耐盐函数  耐盐指数  土壤饱和浸提液电导率  生态适宜性
收稿时间:2011-10-19

Salt Tolerance of Wheat in Hetao Irrigation District and Its Ecological Adaptable Region
TONG Wen-Jie,LIU Qian,CHEN Fu,WEN Xin-Ya,LI Zhong-Hao,and GAO Hong-Yong.Salt Tolerance of Wheat in Hetao Irrigation District and Its Ecological Adaptable Region[J].Acta Agronomica Sinica,2012,38(5):909-913.
Authors:TONG Wen-Jie  LIU Qian  CHEN Fu  WEN Xin-Ya  LI Zhong-Hao  and GAO Hong-Yong
Institution:1.College of Agronomy and Biotechnology, China Agricultural University / Key Laboratory of Farming System, Ministry of Agriculture, Beijing 100193, China;2.Administration of Hetao Irrigation District in Inner Mongolia, Wuyan 015100, China
Abstract:Using the major local wheat cultivar Yongliang 4,the effect of salinity in different soil layers on yield and its components of wheat was investigated in 20 farmers’ fields in Hetao Irrigation District which was in Inner Mongolia,China.And salt tolerance of wheat and its ecological adaptable region were studied in this district.The results showed that ECe of 0 to 10 cm soil layer at wheat seedling stage was the most representative as the root-zone salinity index to analysis wheat salt tolerance,the salt tolerance index of wheat was 10.465 for this soil layer.There were significant negative correlations between soil salinity and wheat yield components,especially between soil salinity and spike number per hectare.According to the wheat salt tolerance,and the wheat relative yield reduction of ≤10%,10-25%,25-50%,and ≥50% as the division standard,we divided the farm land into the most suitable region,suitable region,sub-suitable region and unsuitable region,where the electrical conductivities of saturation extract of the 0-10 cm soil at wheat seedling stage were≤4.972,4.972-6.747,6.747-9.196,and≥9.196 dS m-1,respectively.
Keywords:Salt tolerrance function  Salt tolerance index  Electrical conductivity of saturation extract of the soil  Ecological adaptability
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《作物学报》浏览原始摘要信息
点击此处可从《作物学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号