Cultivation of grafted watermelon in open field

The cultivation of watermelon after grafting can effectively overcome the continuous obstacles of watermelon and realize the sustainable development of watermelon production. The techniques for the cultivation of grafted watermelon are described as follows: Sparse planting: Generally, 200-300 pieces of grafted watermelon seedlings are planted per acre, and the width of the plant is 6 meters and the plant spacing is 0.8-1.2 meters. The planting hole is placed in the center of the cocoon, allowing the vine to climb on both sides. After transplanting per acre with decomposed human excreta plus 50 kg of water and 100 g of dixon poured melon seedlings. After 7 days of planting, if the seedlings were found to be sterile, 0.5 kg of potassium dihydrogen phosphate and 150 kg of water were added to the seedlings per acre, or the leaf seedlings were sprayed with 1000 times of the green Fenwei No. 2 solution. Fertilization: Generally, 1,000 kilos of organic manure, 10-15 kilograms of compound fertilizer, and 10 kilograms of potassium sulphate are applied in Mushi. At the same time, 10 kilograms of calcium, magnesium, and phosphate per mu were used in the watermelon cave. With this method, the basal fertilizer is applied. After the transplanting, the plants are generally not fertilized until the results. If the guava plants are particularly weak, they can be applied in small amounts before flowering of the second female flower, and the second female flower cannot be used after flowering, otherwise it will affect the third female flower setting fruit. After the head pods have been picked, they need to apply one plant to restore the fertilizer. Mushi ternary fertilizer is 10 kg, potassium sulfate is 5-10 kg, and 0.2-0.3% potassium dihydrogen phosphate solution is sprayed on the leaves for 1-2 times. Pruning: When the watermelon vine is about 60 centimeters long, it starts pruning, leaving weak and strong, leaving 2-3 robust branches. Pruning can not be in one step, pruning should be divided, separated every 3-5 days, each time to remove 1-2 side vines, so as not to affect the development of the root system. Prevention of pests: grafted watermelon susceptibility to anthrax, rootstock cotyledons began to begin after the prevention of anthrax, can be used to control 10% of the world's high 1500 times liquid. Extend the vine period, sit guava period to control a good blight, 75% chlorothalonil 600 times can be applied to the base of the main stem for prevention and treatment. Watermelon epidemic can be controlled by 70% calcium aluminum phosphate manganese 400-600 times liquid. The leaf miner can be controlled with 1000-1500 times of 1% insecticidal and 7500 times of 75% of probiotics. Aphids can be controlled by 20% Kangfu Duo concentrated solution 5000 times liquid and other agents.

Posted on November 09, 2018