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大棚内由于连年种蔬菜,致使土壤营养元素不能满足蔬菜生产发育需要,甚至影响产量和品质,现将常见棚室蔬菜缺素症状及补救措施介绍如下: 1、缺氮:症状是杆株矮小,叶色变淡,基部叶片发黄;茎色呈褐色,茎短而细。补救措施:应及
Due to years of vegetables in the greenhouse, resulting in soil nutrient elements can not meet the needs of vegetable production and development, and even affect the yield and quality, common greenhouse vegetable deficiency symptoms and remedies are described below: 1, nitrogen deficiency: Leaf color fades, base leaves yellow; stem color is brown, stalks short and thin. Remedy: Should and