秸秆腐植酸对一串红生长指标及抗蚜性的影响

Effect of Humic Acid from Straw on 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、生殖生长和抗蚜虫作用显著,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10d左右;抗蚜性方面,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 is popular in landscaping.The results showed that,compared with CK,all treatments had significantly positive effect on growth and development of Salvia splendens,especially on vegetative growth,reproductive growth and capacity of pest resistance.As for general effects,treatment 3 is the best,treatment 4 is the better,then treatment 2,and treatment 1 is the least.After applied humic acid,Salvia splendens showed more flower buds,brighter colors,and the florescence was earlier by 10 days contrast to CK.As for effect of pest resistance,prevention rate of aphid was more than 80%.