]*>","")" /> Effects of Irrigation Water Amount in Fall on Soil Water Reservoir and Survival Branch in the South of Xinjiag
Xinjiang Agricultural Sciences

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Effects of Irrigation Water Amount in Fall on Soil Water Reservoir and Survival Branch in the South of Xinjiag

YANG Jin-yu;MA Xing-wang;NIU Xin-xiang;Yimingniyazi;Bawudong;YANG Tao   

  • Received:2007-06-25 Revised:2007-06-25 Online:2007-06-25 Published:2007-06-25

南疆小麦冬灌水量对土壤水库和分蘖成活情况的影响

杨金钰;马兴旺;牛新湘;依明尼牙孜;巴吾东;杨涛   

  1. 新疆农科院土肥所,乌鲁木齐,830091;洛浦县农技站,新疆洛浦,848000





摘要： 由于南疆水资源时空分布不平衡,春旱成为困扰小麦持续高产的问题.从土壤水、灌溉水综合调控的角度,研究了小麦冬灌水量对土壤水库和小麦分蘖过冬存活的影响.结果显示:(1)小麦冬灌时不同的灌水量会形成差别很大的越冬土壤水库,常规灌水量下麦田越冬土壤水库较灌水前减小;(2)土壤水库大小对小麦分蘖越冬成活数量有影响,随着土壤水库增大单位基本苗发育成活的分蘖数提高;(3)综合考虑土壤水库大小、小麦越冬分蘖成活情况和土壤水渗漏等因素,初步确定和田地区沙性土壤小麦冬灌水量以116 m3/667 m2为宜.