常用除草剂在幼林除草抚育中的效益试验研究

试验结果表明 :草甘膦配剂除莠效果达到 85 %以上 ,如果加配 0 0 3%的森草净 ,除莠效果达 89%以上 ,而且除莠时效长 ,利于维护林地环境。除莠成本只是人工除草的 6 8%～ 78%。林草净除莠效果可达 97 5 %以上 ,但目前成本过高 ,难为林农接受

The Experimental Study on the Benefits of Common Weed Killers in Weeding Tending of Young Forests

The results show that the weeding effect of glyphosate compounding agent reaches 85% and more, the weeding effect reaches 89% and more with the addition of 0.03% of Oust, and furthermore, the weeding aging is long, which advantages safeguarding the forest land environments. The weeding cost is only 68%～78% of that of artificial weeding. The weeding effect of Velpar may reach 97.5% and more, but the cost is too high at present, and it is diffcult to be accepted by forestry and agriculture.