Research On The Effect Of Herbicide To Dispose Eucalyptus Stumps And Remove Weeds In Young Forest Tending

This study used different concentrations of CaoShu and glyphosate to probe into the effect in hastening corrosion eucalyptus stumps by different processing time and different processing methods, and the effect of weeds tending according to different seasons and different herbicides on young eucalyptus Forests. And we had the following conclusions:1. Treatment effect of eucalyptus stumps by different concentrations of CaoShu and glyphosate, in analysis of variance,reached extremely significant level (p< 0.01):extremely significant treatment effect was disposed by CaoShu at a concentration of 50 percent, and extremely significant treatment effect was disposed by glyphosate stoste.The effect of CaoShu on germination of the high growth inhibition was more significant than the glyphosate. Different concentrations CaoShu had small different effect in burgeon growth inhibition, they all had extremely significant effect. The higher concentration of glyphosate, the high growth inhibitory effect on inhibition.2. Treatment effect at different times of eucalyptus stumps after cutting reached extremely significant level by the analysis of variance (p< 0.01):the best treatment effect could be reached at a concentrate of 50 percent after cutting 10 days, while treatment by glyphosate stoste within three hours after cutting is the best.3. Treatment of eucalyptus stumps in coating cross section and coating whin a ring by the analysis of variance reached extremely significant level (p< 0.01):coating cross section had very higher significant in inhibition of germination rate and germination height.4. The ideal treatment method was that using CaoShu stoste at a concentration of 50 percent to coat cross section after cutting down 10 days.5. Effects of common herbicides at different concentrations on weeds tending of eucalyptus young forest:the effect on brush by the analysis of variance had not reached significant level (p= 0.0669> 0.05), which was that effect is poorer, and no significant relationship was between each other, and the effect on weeds killing by the analysis of variance reached extremely significant level (p< 0.01), which was that effect was good and had significant relationship. All above all, the best solution:CaoShu solutionat a concentration of 10 percent, that is volume 250 ml mixed with 15 kg water.6. Herbicides effect on weeds tending of young eucalyptus in different seasons by analysis of variance reached extremely significant level (p< 0.01): the best use of herbicides was in the summer, the weed rates were highest, weed tending effect in spring and autumn took second place, and the worst weed control was in winter.