几种抗旱剂在冬小麦生产中的应用示范效果

Effectiveness of Drought Resistant Agents applied on Winter Wheat

在静宁县旱地冬小麦拔节期和灌浆期喷施抗旱剂 1号、FA旱地龙、多效增糖灵、黄腐酸盐的大面积示范结果表明 ,以喷施 FA旱地龙和抗旱剂 1号的效果较为理想 ,较对照分别增产 9.5 %～ 12 .2 %和 6 .8%～ 11.6 %,产值分别增加 12 37.80元 /hm2 和 112 2 .30元 /hm2 ,产投比分别为 19.19∶ 1、18.71∶ 1。

Demonstration of spraying No 1 of drought-resistance, FA handinong, Duoxiaozengtang ling, and Huangfusuan were carried out at jointing and grain-filling stages in dryland of Jingning. Compared to unsprayed treatment, increased percentage of grain yield ranged from 9.5% to 12.2% for FA handilong and 6.8% to 11.6% for drought-resistant No1. Economic value increased by 1 237.8 and 1 122.3 yuan/hm^2, and economic ratios of output to input by19.19∶1 and(18.71∶)1 in the respective treatments. These suggest FA handinong and drought-resistance No1 produce good effectiveness.