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我场地处杭州湾南岸,土壤属钱塘江下游冲积的粉砂壤土.历年来棉花苗期适逢低温多雨,棉田杂草丛生.据调查,我场杂草有13科,35种,主要是蟋蟀草,马唐,看麦娘,狗尾草,千金子,早熟禾,卷耳以及一些莎草科杂草等.杂草不仅严重影响棉花壮苗早发,而且影响其它作物的收、种、管.成为我场棉、粮生产的一大障碍.为了经济、安全、有效地在大田生产中推广使用化学除草剂,我们在省农垦局的支持下,进行了不同化学除草剂的除草试验,取得较好的效果.现将试验结果总结如下,供各地参考.
My field is located in the south bank of Hangzhou Bay, the soil is the alluvial silt loam in the lower Qiantang River over the years cotton seedling coincides with low temperature and rainy, cotton weeds clustered according to the survey, I field weeds 13 families, mainly species of crickets Grass, Crabgrass, Amanita, Setaria, Torreya grandis, Kentucky bluegrass and some Cyperaceae weeds and other weeds not only seriously affect the cotton seedlings early onset, but also affect the harvest of other crops, species, and tube. As a major obstacle to the cotton and grain production in our field.In order to promote the use of chemical herbicides economically, safely and effectively in the field production, we carried out herbicidal tests of different chemical herbicides with the support of the provincial Bureau of Reclamation, Good results. Now the test results are summarized below, for reference.