]*>","")" /> The effect study of fertilizer and water on tube-irrigated cotton under the normal pressure
Xinjiang Agricultural Sciences

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The effect study of fertilizer and water on tube-irrigated cotton under the normal pressure

ZHOU Bo;LIANG Zhi;WANG Yu-he;ZHONG Xin-cai;FENG Yao-zu;YANG Tao;ZHANG Li   

  • Received:2005-05-25 Revised:2005-05-25 Online:2005-05-25 Published:2005-05-25

棉花常压软管灌水施肥效应研究

周勃;梁智;汪玉和;钟新才;冯耀祖;杨涛;张丽   

  1. 新疆农科院土肥所,新疆,乌鲁木齐,830000;洛浦县种子公司,新疆,洛浦,844000;新疆农业大学环境学院,新疆,乌鲁木齐,830052





摘要： 采用田间灌水施肥小区试验研究了施肥方式和灌水方式对棉田土壤水分动态和棉花生长的影响,结果表明,常压软管灌追肥集中在花铃前期进行较为适宜,追肥次数应控制在3～5次,皮棉产量可达到1 813.5 kg/hm2.常压软管灌与小畦灌相比,可大幅提高水分的利用效率,减少水分的渗漏,灌水生产效率增幅达39.2;,渗漏降低14.64;.常压软管灌因灌水次数多,灌水定额少,灌水前后土壤相对含水量在60;～75;小幅变动,较小畦灌在51;～78;大幅变动更有利于棉花的生长发育.