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目的意义土壤含水量是植物生活的外界因素之一,植物的耐寒性常依这种因素而转移。土壤中的含水量给植物生理上的影响,“低温之前期引起植物萎蔫的暂时缺水,有利于植物耐寒性的发展。”尤其是经过几次重复的暂时性萎蔫是特别有效的(当然土壤内水分长期不足的条件下所造成的永久性萎蔫会得到相反的结果),甚至可以代替冻前的低温锻炼,这种作用早已为前人的试验和大量的生产实践所证实。在墒情较差时,借冬灌以防寒(冻)害也和冻前干
The purpose of the meaning of soil moisture is one of the external factors of plant life, plant cold resistance often depend on this factor and the transfer. Physiological effects on plant physiology from soil moisture content, “Temporary water deficit in plant wilts leading to low temperature development favor cold tolerance in plants.” Especially after several repetitions of temporary wilting are particularly effective (of course soil Permanent wilting caused by prolonged under-water conditions can lead to the opposite result), and can even replace cold pre-thaw exercise, a role already proven by previous experimentation and extensive production practices. In poor moisture, by winter irrigation to prevent cold (cold) damage and dry before freezing