In order to find out the herbicide mixed use combinations and their dosage that causes damage to the wheat field,the experiment selects four kinds of herbicides,i.e.Pinoxaden 50 g/L EC,Florasulam+Flumetsulam 58 g/L SC,MCPA-Na 560 g/L SP,and Fluroxypyr 200 g/L EC to carry out the experiment of multiple mixed use spray application.Through multiple drug injury inves-tigation,it is concluded that 4 times the amount of Pinoxaden 50 g/L EC as well as Pinoxaden 50 g/L EC mixed with MCPA-Na 560 g/L SP with the 2-fold and 3-fold amounts of drug cause more serious drug injury,which is not easy to recover,and causes some yield loss;A 3-fold dose of Pinoxaden 50 g/L EC,a 1-fold dose of Pinoxaden 50 g/L EC mixed with MCPA-Na 560 g/L SP,and a 2-fold dose of Pinoxaden 50 g/L EC mixed with Fluroxypyr 200 g/L EC produces mild drug damage,which recovers later.The admixture of Pinoxaden 50 g/L EC with Florasulam+Flumetsulam 58 g/L SC is not prone to be harmful to the wheat field and makes the herbicidal profiles very complementary,with one application effectively removing major weeds in the wheat field.
wheatstage of turning greenherbicidesmixingdrug damage
国家科技期刊平台
NSTL
万方数据
维普
