论文部分内容阅读
综合我国北方主要城市近年的蔬菜病害调查资料,比较、分析了我国北方蔬菜病害20年来的新发展及其原因;进而提出今后一个时期,内蔬菜病害防治上应采取的新对策:以生态区为单位,建立蔬菜植保(指挥、测报、防治等)新体系,协调运用农业、生物、物理及化学等防治技术,综合治理菜田土壤生态和株间生态条件,把提高作物抗病性、控制病原菌密度及其致病力与调节环境使其利于作物生育而不适病原菌活动巧妙的结合起来,提高防治效果,防止农药污染把蔬菜病害防治提高到一个新水平。
Based on the survey data of vegetable diseases in major cities of North China in recent years, the new development of vegetable diseases in North China over the past 20 years and its causes were analyzed. And then some new countermeasures should be taken to prevent and control vegetable diseases in the future. Units, the establishment of a new system of vegetable plant protection (command, measurement, prevention, etc.), coordinated use of agricultural, biological, physical and chemical control techniques, integrated management of vegetable soil ecological and ecological conditions between strains, to improve crop disease resistance, control of pathogens Density and its virulence and regulatory environment make it conducive to crop growth and disease pathogen activity ingenious combination, improve the control effect, prevent pesticide pollution to vegetable disease prevention and control to a new level.