The hot summer is coming, and it is the season of watermelon harvest. Many farmers are looking forward to the high yield of their watermelons. Then, how to fertilize high-yield watermelon?
The practice of watermelon production shows that for every 100 kilograms of watermelon produced, about 0.19 kg of nitrogen, 0.092 kg of phosphorus, and 0.136 kg of potassium are needed. In general, a sufficient amount of nitrogen fertilizer is the basis for high yield of watermelon. Today, we will introduce the high-yield fertilization method for watermelon.
High-yield fertilization method for watermelon:
First, the basic fertilizer and high-yield watermelon field should generally apply 3,000-5,000 kilograms of organic fertilizer per 667 square meters (1 mu), 75-100 kg of superphosphate, 7 kg of urea, and 5 kg of potassium sulfate. It is advisable to apply the ditch, and the fertilizer can also be applied to the melon ditch or the melon, and then turned into the soil.
Second, skillfully apply seedlings to the watermelon seedling stage, the soil needs to have enough quick-acting fertilizer to ensure the normal growth of the seedlings. In general, a part of the fertilizer has been applied to the base fertilizer, as long as there is no symptoms of deficiency in the seedling stage. Can not topdress. If there are fewer fertilizers applied in the base fertilizer, or those that are not equipped with chemical fertilizers and melon fields that show symptoms of lack of fertilizer, the amount of seedlings should be chased in order to promote the normal growth and development of the seedlings. The fertilization time should be before and after the seedlings grow to 4-5 true leaves, or 3 to 5 kg of urea and 10 kg of superphosphate per 667 square meters (1 mu) before pouring the seedling water.
Watermelon high-yield fertilization method
Third, the foot chasing after the extension of the mango watermelon melon vines, should be applied to promote the vine before the vine water, generally 667 square meters of ternary compound fertilizer 20-25 kg, can also be applied for 15 kg or so Diammonium phosphate to promote elongation of stems.
Fourth, discretion to sit on the melon and fertilizer before and after the flowering of the melon, is a key period of sitting melon, in order to ensure that the watermelon plant can sit on the melon, generally do not top dress. However, when the young melon grows to the size of the duck egg, the watermelon enters the peak of the absorption. In this period, if the lack of fertilizer not only affects the expansion of the melon, but also causes the later de-fertilization, the plant premature aging, which not only reduces the yield of watermelon, but also affects the quality of the melon. Therefore, it is necessary to apply the melon fertilizer, generally 8 to 10 kg of urea per 667 square meters (1 mu), 70 to 80 kg of superphosphate, 30 to 40 kg of potassium sulfate, or 667 square meters of ternary compound fertilizer 40 In kilograms, the fertilization amount of high-yield melon fields can also be increased appropriately.
Watermelon high-yield fertilization method
Fifth, the late stage sprayed the surface of the fertilizer, the watermelon into the late stage of maturity, the roots of the ability to absorb fertilizer has been significantly weakened, in order to make up for the lack of roots to ensure the normal maturity and quality of the watermelon, can be foliar spray fertilizer. For example, every 667 square meters can be sprayed with 0.3% urea solution, or a mixture of 0.3% urea and 0.2% potassium dihydrogen phosphate 50-75 kg. In this period, 0.06% to 0.08% of rare earth solution can be used to increase the sugar content of watermelon by 0.6% to 1.7%; or 667 square meters of watermelon can be sprayed from borax 200g, sucrose 2400g, chlorination The solution of 0.7 g of calcium and 50 kg of water is 50-100 kg, which can generally be sweetened by 1 to 2 degrees, and the yield is increased by 10% to 20%.
Watermelon high-yield fertilization method
The high-yield fertilization method of watermelon is introduced here. The sufficient phosphate fertilizer can promote the growth and development of plants, promote flower bud differentiation, make it bloom early, sit early and mature early, and potassium is a catalyst for various enzymes in plants, which can promote Photosynthesis, protein synthesis, increased sugar, and improved melon quality.
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