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云南宾川棉区,黑色石灰性土壤上连作的棉花,均有黄萎病发生;但由于宾川棉区有稻棉输作的习惯,在一定程度上,限制了黄萎病的蔓延和为害,一般发病株率在5％以下。 一、稻棉输作防治黄萎病的调查 稻棉输作防治棉花黄萎病,是宾川棉农从长期植棉中积累起来的经验。根据群众经验,结合我站多年应用结果,1958—1959年分别定田调查棉田栽种一年水稻后,能防治黄萎病发病的年限(详见表1)。 棉田栽种水稻后,由于淹水时间长达5—6月,
In Binchuan cotton area of Yunnan Province, continuous cropping of cotton on black calcareous soil occurred Verticillium wilt, but due to the habit of rice paddy translocation in Binchuan cotton area, the spread and damage of Verticillium wilt were limited to a certain extent , The average incidence of strains in less than 5%. First, the investigation of the prevention and treatment of rice wilt disease Prevention and treatment of verticillium wilt Rice cultivation of cotton prevention and control of Verticillium wilt is Binchuan cotton farmers from long-term cotton accumulated experience. According to the experience of the masses, combined with years of application results of our station, 1958-1959 years after field investigation of cotton fields planted rice, can prevent the incidence of verticillium wilt (see Table 1). Cotton fields planted rice, due to flooding for up to 5-6 months,