叶面喷施FA旱地龙对冬小麦产量和发育期的影响  

Effect of spraying FA on yield and growth period of winter wheat

作　　者：王志伟[1,2,3] 梁亚春 刘文平[3] 裴秀苗 贾朝阳 贾志宽[1] 

机构地区：[1]西北农林科技大学,陕西杨凌712100 [2]中国气象局兰州干旱气象研究所,甘肃兰州730020 [3]山西省气候中心,山西太原030006 [4]山西省运城市气象局,山西运城044000

出　　处：《干旱地区农业研究》2009年第1期68-72,共5页Agricultural Research in the Arid Areas

基　　金：科技部科研院所社会公益研究专项项目(2005DIB3J100);中国气象局2004年度扶贫项目“叶面喷施抗旱剂技术在山西贫困地区的推广应用”

摘　　要：利用3种不同浓度的抗旱剂（FA旱地龙）,在山西省万荣县冬小麦生育的关键期分3次和2次,进行了叶面喷施抗旱试验研究。结果表明：在冬小麦拔节期、孕穗期和灌浆期对叶面喷施一定浓度的抗旱剂,都有明显的抗旱增产效果;在干旱年份,喷施高浓度的抗旱剂比喷施低浓度的抗旱剂增产效果要好,喷施3次比喷施2次的抗旱增产效果好,6种处理的理论产量增产百分率在8.2%~38%之间。喷施抗旱剂主要是提高了冬小麦的抗逆性,提高了土壤水分的利用效率,对提高成穗率、穗粒数和千粒重有利。The pilot study on rought-resistant foliage spraying is made with the treatments of using three different concentrations of a drought-resistant FA（Dryland Long） spraying on winter wheat foliage at the critical growth period of winter wheat in three times and two times of six kinds, in Wanrong County, Shanxi Province. The results showed that ： spraying a certain concentration of the drought-resistant FA on winter wheat foliage in jointing, booting and filling stage, the drought-resistant effect has significantly increased; In dry years, spraying high concentration of drought-resistant FA obtained higher yield than low concentration, spraying three times better than two times, the percentage of yield increase of six kinds of treatment is 8.2% --38%. The main effects of spraying drought-resistant FA increased the resistance of winter wheat, improved the efficiency of the use of soil moisture and increased the rate of effective ear, kernels/ear and 1000-kernal weight.

关 键 词：FA旱地龙 冬小麦 产量 发育期 

分 类 号：S512.11[农业科学—作物学]