日光温室冬茬黄瓜栽培技术性强、管理要求高，若栽培管理不当，易引起植株早衰。１早衰原因 （１）弱苗定植。育苗期间阴雨天多、光照不足，苗期发病普遍；加之雨天嫁接，不利伤口愈合，定植时幼苗较弱，植株生长发育差、易早衰。 （２）施肥不足。冬茬黄瓜生长期长，需肥量大 Winter greenhouse cucumber cultivation techniques, management requirements, if improper cultivation and management, easy to cause premature plant failure. 1 causes of premature aging (1) weak seedlings colonization. More rainy days during nursery, lack of light, the prevalence of seedling stage generally; coupled with rain grafting, adverse wound healing, planting seedlings weaker, poor plant growth and development, premature senility. (2) insufficient fertilization. Winter cucumber growing season, the need for large amount of fertilizer