The Research On The Chemical Control Of Weeding In Nursery

Chemistry weeding is a new technology developed in these thirty years, but in forestry, it develops still very backwardly.In this paper, by the research on the kinds of useless weed and occurrence law at nursery in forest industry zone in Heilonggiang province , and the application in the laboratory of the major weedicide-, sure asGoal, Haloxyfop, Prometryne, Triflutalin, Paraguat, Glyphosate, Laso,Setho xydim,Quizalofop-p-ethyl, SL-236, Durom, DPL etc.we propose the technology of chemistry weeding and develop the regulation of weeding in nursery and the chemistry weeding for coniferous tree and young willow.From 2000 to 2002, the technology is developed and applied in different level at 40 forest bureaus in forest industry zone and part cites and counties in our province, the popularization up to 90% .If we only compute the economic benefits produced by using the technology in the forestry system to control the damage of nursery and reduce the loss of nursery, we can gain direct economic benefits 5,000,000 yuan. Indirect economic benefits involve in promoting the growth of nursery stock and increasing the survival rate of planting nursery stock . So it is difficult to check and count.