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日光温室黄瓜栽培,一株瓜秧一般平均可结40～50条瓜,但真正能长到商品瓜的仅占33%～50%,有50%以上的雌花不能形成商品瓜而化掉,严重地影响早春日光温室黄瓜的产量和经济效益。其具体的化瓜原因与防治措施如下:一、化瓜原因1.高温化瓜温室内白天温度高于32℃,夜间温度高于18℃,?
Solar greenhouse cucumber cultivation, a melon seedlings generally average 40-50 knot melon, but can really grow to only 33% to 50% of melons, more than 50% of female flowers can not form a melon and turn off, serious Affect the yield and economic benefits of early spring solar greenhouse cucumber. The specific melon causes and prevention measures are as follows: First, the melon causes 1. High temperature melon greenhouse temperature during daytime is higher than 32 ℃, night temperature is higher than 18 ℃ ,?