在蔬菜生长过程中，常因脱肥而表现出一些不良症状，影响生产。1缺氮：茎细叶小出叶慢，叶色变黄。如番茄缺氮会“露花”．黄瓜缺氮是淡绿色，对于缺氮的蔬菜，要结合浅锄松土进行补氛．①每亩用尿素6kg，加腐熟的人粪尿8－12担，兑水25－30担浇施．②用2％的尿素液ZO0kg进行喷 In the process of vegetable growth, often due to loss of fat and showed some adverse symptoms, affecting production. 1 nitrogen deficiency: stem leaves small leaves slowly, leaf color turns yellow. Such as tomato nitrogen deficiency will “dew.” Nitrogen is a pale green cucumber, nitrogen-deficient vegetables, combined with shallow hoe loosening soil to make up the atmosphere. ① Urea 6kg per acre, plus decayed human excrement 8-12 Tam, watered 25-30 Tam facilities. ② with 2% urea solution ZO0kg spray