Winter melon is suitable for growth in sandy soil rich in organic matter, resistant to fertilizer and inferior, and requires comprehensive nutrients such as nitrogen, phosphorus, potassium and calcium. The base fertilizer should be reapplied and the fertilizer should be properly applied. In the seedling stage, the nutrient absorption is less, and the convulsion period is more, while the flowering result period, especially in the early and middle stages of fruit development, is the most, and gradually decreases in the later stage. Increased nitrogen fertilizer, longer main stem, increased application of phosphorus and potassium fertilizer, can delay the aging of early maturing varieties, and can reduce the female flower node and increase the weight of single melon.
base fertilizer. Winter melon should be applied to the base fertilizer. Generally, 300-500 kilograms of organic fertilizer is applied per mu. If organic fertilizer is used, the organic fertilizer should be fully decomposed and increased in dosage, 3000-5000 kg per acre. At the same time, organic fertilizer should be applied with phosphate fertilizer and potash fertilizer. Apply 20 kg of diammonium phosphate and potassium chloride per acre. Phosphate fertilizer should be mixed with organic fertilizer and applied together.
top dressing. Spraying 800 times of new high-fat film in time after planting can effectively prevent the moisture on the ground from evaporating, the moisture of the seedlings is not transpiration, the pests and diseases are isolated, the seedling period is shortened, the new environment is quickly adapted, and the growth is healthy. Apply 8 kg of ammonium sulphate or 3 kg of urea per acre. After sitting on the melon, apply 15 kg of urea per acre and 20 kg of potassium sulphate. At the same time, spraying melon tidyling before the flowering of the melon, the young fruit period and the fruit expansion period can make the cucurbit thickening, strengthen the nutrient directional transport, and promote The melon body develops rapidly, the melon shape is beautiful, the juice is delicious and delicious; the growth cycle does not fall, no melon, no cracked melon, no deformed melon. In the future, 10 kg of diammonium phosphate will be applied one to two times per mu.
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