秸秆腐植酸对一串红生长指标及抗病虫害的影响

Effect of Humic Acid from Straw on Features of Growth and Pest Resistance of Salvia splendens

为验证秸秆腐植酸的应用效果，在绿化利用率较高的花卉一串红上进行应用试验。结果表明，不同处理对一串红的生长发育有积极的促进作用，各处理对一串红的营养生长、生殖生长和抗病虫能力作用显著，较对照均达到显著水平，综合效果评价为处理3〉处理4〉处理2〉处理1。对一串红生殖生长影响显示，处理后的一串红花芽分化多，花色鲜艳，花幅大，花期较对照提前10天左右；抗病性方面，对蚜虫防治率达到80％以上，作用效果分别为处理3〉处理4〉处理2〉处理1。

In order to verify the application effect, humic acid from rice straw was applied on Salvia splendens, which was popular when landscaping. The results showed that all disposals had positive effect on growth and development of Salvia splendens, especially on vegetative growth, reproductive growth and capacity of pest resistance, and showed significant differences when contrast to CK. As for general effects, disposal 3 was the best, disposal 4 was the better, then disposal 2, and disposal 1 was the least. After applied by humic acid, Salvia splendens showed more flower buds, brighter colors and the florescence was advanced 10 days contrast to CK. As for effect of pest resistance, prevention rate of aphid could be up to more than 80%.