据调查,秋冬季造成“空心果”的直接起因是大棚内浇灌水的温度下降,在低温情况下,西红柿根部受冷紧缩,根须生机下降,吸水性差,如此时植株幼果正处于膨大期,在短期短少水分供给的情况下,则易出现局部果中少肉现象。因此,深秋及冬季浇灌大棚西红柿水温必须预先提高到10℃以上,可利用大棚一角暂存浇灌水,以利提温。加强光照管理生长中后期要恰当打杈和摘叶,加强光照,增进通风。通常是结 According to the survey, in autumn and winter, the direct cause of “hollow fruit” is the decrease of the temperature of irrigation water in the greenhouse. Under low temperature conditions, the root of tomato is subject to cold contraction, the root vigor decreases, and the water absorption is poor. Expansion, short-term short-term supply of water, then prone to local fruit juvenile phenomenon. Therefore, late autumn and winter watering tomatoes in greenhouse temperature must be pre-raised to 10 ℃ or more, you can use the temporary storage of water conservancy corner of the greenhouse to Li Ti. To strengthen the light management growth should be appropriate in the late twigs and pick leaves, to enhance light and enhance ventilation. Usually knot