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手机尾号为5216的用户问:大棚西红柿施肥后中部叶片的叶肉普遍发黄,但叶脉保持绿色是什么原因?专家解答:根据用户描述我们诊断是施肥过多导致的。冲肥多了,营养不平衡出现缺镁造成的症状。建议叶面喷施含镁的肥料,如硫酸镁。使用冲施肥要适量,不要一次用量过多,可分次使用。
Cell phone tail number is 5216 users Q: Greenhouse tomato fertilization after the middle leaves of the leaves generally yellow, but the veins to keep green What is the reason? Expert’s Answer: According to the user description of our diagnosis is caused by excessive fertilization. More fat, nutrition, magnesium deficiency caused by the symptoms. Proposed foliar application of magnesium fertilizer, such as magnesium sulfate. Apply appropriate amount of red fertilizer, do not use too much time, can be divided into several uses.