How to fertilize bitter gourd in summer, how to fertilize bitter gourd

Bitter gourd is a nitrogen-type vegetable: that is, for every 1000 kilograms of bitter gourd produced, it is necessary to absorb 5.277 kilograms of nitrogen, 1.761 kilograms of phosphorus, and 6.666 kilograms of potassium from the soil. The bitter gourd has a long growing period, strong ability to continuously flower and melon, high yield, large amount of fertilizer, and more nitrogen in the early stage, mainly phosphorus and potassium in the middle and late stages. The bitter melon is like a wet fat, and the yield is high under the condition of sufficient water and fertilizer, and the quality is good. On the basis of applying the base fertilizer, it is necessary to topdress.

Although bitter gourd is resistant to fertilizer, it is weak in fertilization at the seedling stage. If the fertilizer is slightly thick, it will burn the seedlings, so the top dressing should pay attention to the light and heavy. After planting, combined with pouring slow seedling water, 5 kg of urea per acre, 2 kg of biological potassium fertilizer or 5 kg of potassium dihydrogen phosphate, after which the seedling fertilizer is applied according to the appropriate amount of seedlings, and the weak seedlings are mainly fertilized.

After harvesting the second melon, place the fruit fertilizer at a distance of 15-20 cm from the root, and apply 20-30 kg of nitrogen and phosphorus-potassium compound fertilizer per mu. Pay attention to the root dressing in the late stage to prevent premature aging.

The bitter gourd has a long growing period and the harvesting period lasts for more than 3 months. Therefore, it is necessary to ensure sufficient supply of water and fertilizer, especially in the fruiting period. If it is dry, water should be poured every 7 days. Before watering, urea or compound fertilizer should be applied at 7 to 10 kilograms per mu. In case of continuous rain, attention should be paid to drainage, and foliar potassium dihydrogen phosphate should be sprayed 2~3 times.

The principle of fertilization in the protected area should be based on farmyard manure and supplemented by chemical fertilizers; farmyard manure and phosphorus, potash fertilizer and a small amount of urea-based application, and the remaining nitrogen fertilizers should be applied with water. The topdressing time is better from the beginning of harvesting to the harvesting period. It is possible to use farmer's fertilizer with high carbon and nitrogen and full maturity.

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