1. Too much fertilization If too much potassium fertilizer is used, there will be fertilizer damage, mainly due to yellowing and death of the leaves. Too much fertilizer at a time will increase the concentration of the soil solution, causing the cells to lose water, and then will wither somewhat. In severe cases, it will damage the roots and die directly. Therefore, the use of fertilizers must ensure that the concentration of the soil solution is lower than that of the cell solution.

2. Improper fertilization and fertilization do not cover the surface of the soil. The absorption is not good, and the fertilizer cannot be buried deeply; nor can it be too close to the root system. Directly use the untreated organic fertilizer, which contains a lot of pathogens and insect eggs. The fertilizer is very close to the root system. ; Too much trace elements will resist each other, too much nitrogen fertilizer will cause calcium deficiency, too much potassium fertilizer will be used, magnesium and boron element absorption will be reduced; use chemical fertilizer directly, do not add water to dissolve. The above are some wrong demonstrations.

3. The reasonable fertilization of bitter gourd root system is not very strong, you can use less chemical fertilizer, you must use it to add water to dissolve to use, use more organic fertilizer, but must be composted, fermented before use, use organic fertilizer to dissolve in the seedling period, After the plant grows, it can not be dissolved, but only water after fertilization, to help absorb fertilization, a large number of elements are used, a trace element is used, and the most missing ones can be sampled to test the soil and then fertilize. Fertilizer must be used evenly, mixed thoroughly, not concentrated in one place, not conducive to absorption.

4. Fertilizer amount During the general growth period of bitter gourd, 10 kg of urea, 4 kg of potassium fertilizer and 10 kg of potassium dihydrogen phosphate per mu of land. About 1000 kg of bitter gourd should absorb nearly 12 kg of nitrogen fertilizer, top dressing 2 to 3 times, and apply 20 kg of compound fertilizer at a time. Foliar top dressing, 0.2% potassium dihydrogen phosphate, spray 2 to 3 times.

Bitter melon fertilization******Do not use fertilizer concentrations that exceed the concentration of the soil solution. Fewer chemical fertilizers and more organic fertilizers must be used to ensure that the amount of fertilizer is not excessive.

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