冬季日光温室蔬菜生产,由于光照弱,时间短,不能满足多数蔬菜正常的光合需求,作物时常处于半饥饿状态。同时由于长期的低温影响,蔬菜生长缓慢,甚至处于半休眠状态。如我们在生产中经常看到的一些果菜类花而不实,甚至只现蕾不开花或者生长点出现纽曲、坏死等生理病害。这些除与低温寡照作物吸收能力弱有关外,还与施肥不当土壤 Winter solar greenhouse vegetable production, due to weak light, time is short, can not meet the normal photosynthesis of most vegetables, crops are often in a state of semi-hunger. At the same time due to long-term low temperature effects, vegetables grow slowly, or even in a semi-dormant state. As we often see in the production of some fruit and vegetable flowers and not real, and even budding is not flowering or growing point New Zealand song, necrosis and other physiological diseases. In addition to these low temperature oligo crop absorption capacity is weak, but also with improper fertilization of soil