1980年以来,我们在学校苗圃搞了一些化学除草试验.现将试验情况及结果整理如下。一、供试药剂。25％可湿性除草酸,80％可湿性五氯酚钠,50％可湿性扑草净,50％可湿性西玛津,25％可湿性敌草隆,50％可湿性除草剂一号。二、试验地。二年生油松留床地,一年生海棠留床地,毛白杨平茬地,刺槐当年播种地,泡桐当年埋根地,一年生榆树移栽地,毛白杨当年插条地。 We have conducted some chemical weeding tests in school nurseries since 1980. The test results and results are summarized below. First, the test agent. 25% wettable oxalic acid, 80% wettable sodium pentachlorophenol, 50% wettable prometryn, 50% wettable sigmamate, 25% wettable diuron, and 50% wettable herbicides. Second, the test ground. Perennial Pinus pine bed, annual Begonia stay bed, Populus stubble, sow locust sowing that year, Paulownia buried roots, annual elm transplanting, poplar then cuttings.