Studys On Arise Rules And Control Technology Of Weeds In Afforestation Nursery

In connection with our city's plantlet distribution,making the investigation to the main producing region,the parks in the suburb,green blet,the totally nursery weed in the notes was 30 family 90 types,the rules of the distribtution and the nascence character also cleared.Making the elementary research on the biological characteristics and the measurements for the prevention and the weeding.Meanwhile lawn as the indispensable city virescence,also made the research on the weed growing and the technic of the preventation and weeding.The yellowtop and the ragweed as the important invasive plants,also made the primary research on the biological characteristics and the measurements for the prevention and the weeding.On the basis of the thses research,according to the weeds growing and endangering character, making the full set of comprehensive control measure,especially in the chemic weeding,already filter the mass of the herbicide could used on the various green nursery which suitable to cultivate in Jinhua,such as the china rose,photinia fraseri, loropetalum chinense(R.Br.) oliv.Var rubum yieh,camellia,podocarpus macrophyllus,cinnamonum camphora(L.) Presl,Osmanthus fragrans lour,deodar cedar,magnolia,warm season gramineae lwan etc,and apply them to the production. Among them,it's the first time for 33%pendimethalin EC applies extensive in the nursery and the lawn weeding.The sales volumn of it is the one ton in Jinhua city in three years,the apply area is the 823.72 acre.Besides thses,fluroxypyr,paraquat, metolachlor,MCPA,glyphosate,glufosinate-ammonium,oxyfluorfen,clethodim, haloxyfop-R-methyl,quizalofop-P-ethyl,flazasulfuron,acetochlor etc.implemente on the plantlet and flower arround 2471.17 acre accumulated.Druing the three years of this project implementation,improve the fully rate of the appropriate technology,reduce the weeding cost prominently,get the great social and economic benefit.A lot fo weeding technic already accepted by the nursery people, and have the bright future of popularization and application.Jinhua city was located in the central of Zhejiang province,and it's also the transportation center.It's not noly have a various kinds of plantlet,but also the plantlet's distributing center.The original plantlet will evolve with the environment in various degree,the secondary weed will turns into the primary weed.At the same time, with the plantlet in and out from all over the country,the types of the weed also will changed constantly,especially the incursionary weed from the outside,will make the trouble for the plantlet,it's even will threat the whole entironment.At present,we don't draw much attention on the weed control,the scientific manpower and the charge is lagged severely,It's still have a lot of deficiency to make the system research for the nursery weed growing and the comprehensive prevention and weeding.