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北宁市保护地面积近3万公顷,多年来由于连年重茬,土传病害逐年加重,已成为制约保护地生产的主要因素。据调查,甜瓜枯萎病重茬2年的田块发病率34％,重茬3年的田块发病率50％以上;青椒根腐病重茬3年以上的田块发病率达39％。这两种病害几年来发病严重,造成了很大的经济损失。2003年我们进行了2.5％适乐时灌根防治这两种病害的试验,取得效果。 试验地点:防治甜瓜枯萎病在窟窿台王合示范园的重茬2年棚区内,品种红城10
The area of protected land in Beining is nearly 30,000 hectares. Over the years, successive years of continuous cropping and soil-borne diseases have increased year by year, which has become a major factor restricting the production of protected areas. According to the survey, melon blight wilt crop two years of field incidence of 34%, crop three years of field incidence of more than 50%; green pepper root rot crop three years or more field incidence of 39%. Both diseases have been severely ill in recent years, causing great economic losses. In 2003, we conducted a 2.5% test of irrigating roots for prevention and control of these two diseases and achieved results. Test Location: Fusarium wilt prevention and control in the hole Wang Wang demonstration park of cropping 2 years shed, the species Red City 10