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How to prevent celery rotten?
The celery is rotten: if it is brown, it should be due to calcium deficiency. Control methods: First, be careful not to control the water excessively and keep the soil moist. The second is calcium supplementation. That is, when it first occurs, the leaves are sprayed with calcium fertilizer. The calcium fertilizers commonly used for calcium supplementation include: Green Fenwei III or calcium chloride. Due to the poor mobility of calcium, some naphthalene acetic acid should be added when using calcium chloride. The specific method is: first naphthalene acetic acid into 5 / million solution, use it as water, the calcium chloride into a 0.3% aqueous solution. If the sale of pesticides has other similar calcium fertilizers that can be sprayed on the leaves, they can also be used.