栽培防病措施对防治小麦白粉病的重要作用

为了解栽培措施对防治小麦白粉病的作用，通过不同栽培措施对病情产生不同影响的大量田间调查，明确了小麦早播、密播，过量水、肥条件下的旺苗和种植高度感病品种，都会加重小麦秋苗带菌量。短期播种、合理密植、视墒灌水、配方施肥、培育小麦壮苗及避免种植高感品种等均能减轻小麦秋苗带菌量。小麦秋苗带菌量大，则翌春病菌越冬菌源量也大。种植高感品种在田间有发病中心的作用。应把栽培防病措施规范化、科学化、制度化，以充分发

THE IMPORTANCE OF CULTIVATION MEASURES TO THE CONTROL OF WHEAT POWDERY MILDEW

It is ascertained that it will increase the quantity of powdery mildew of wheat seedlings in the autumn under conditions of early sowing, over-density, over-watering, over-doses of fertilizer and growing of highly susceptible cultivars through large scale investigations in wheat fields. The proper cultivation measures to reduce the quantity of the pathogen include sowing on suitable date, reasonable density, water quantity and fertilizer combination and avoiding highly susceptible cultivars, etc. Large quantity of pathogen of the autumn seedlings will increase the pathogen quantity in over-wintering seedlings. The highly susceptible cultivars act as disease centre in the fields. The authors indicate that the cultivation measures should be standardized in order to give perfect effectiveness in the control of the disease.