First, timely sowing. Select a single melon moderate, high quality, peel tough tough, storage-resistant watermelon varieties such as nectar seedless, black honey seedless and gold honey seedless. Seeding in early July is appropriate, too early sowing, high temperature inside the shed, small vines and fine vines, difficult to win high yields and high quality; sowing too late, often before and after the National Day early cold weather, accompanied by continuous autumn rain, seedless watermelon fruit is difficult mature. Second, nursery transplanting. In the autumn, the temperature is high. Generally, small-shed film seedlings are used. After sowing, the greenhouse film is covered with a shade net. After the emergence, the film and shade net are removed. Before the rain, it is timely covered and ventilated to prevent emergence of tall seedlings. Generally, seedlings are aged 15-20 days, transplanted at the time of two leaves and one heart, spacing 2.7-3 meters (2 rows of 5.5-6 meters wide greenhouse), spacing of 0.5-0.7 meters, 400-500 plants per acre, The melon land is planted with 30-40 strains of pollination varieties. Third, fertilizer and water management. Autumn seedless watermelon grows during the period of high temperature and rainy growth, and it grows fast. The whole growth period is only about 80 days. The requirement for fertilizer is quick and concentrated. Therefore, before transplanting, it is necessary to finely prepare the soil and combine it with lotus root to make cooked vegetables per acre. Seed cake or cotton cake 50 kg, 30 kg of imported compound fertilizer. When the main cranium grows to the size of a fist, each plant sits 1-2 hours, needs big water, big fertilizers to attack swollen manure, 40 kg of ammonium bicarbonate per acre, 15 kg of imported compound fertilizer, and water after pouring fertilizer. Can be fertilized. Fourth, temperature control. Due to the high temperature and rain in summer and autumn, it is difficult to cultivate watermelons in open fields. Therefore, the greenhouse must be covered before transplanting the seedless watermelon, and the membrane must be buckled to prevent wind and timely ventilation to ensure that the temperature of the watermelon is controlled at 25-35°C throughout the growing season. Fifth, pruning pollination. In the seedling stage, trees should be promoted, and 2 vines should be kept. However, the direction should be adjusted to facilitate ventilation and lightening. Particular apprenticeships can properly remove part of the vines. Seed-free watermelon male sterile, male pollination must be collected for artificial pollination. Six, set melon melon. In order to improve the product rate of seedless watermelons, the melons are usually selected in the form of melons with the right and proper melons, and 1-2 melons per plant, 600-800 melons per mu, and one melon of the low-staggered melons are removed. As the temperature drops gradually during the autumn market, more than nine mature melons must be harvested in time. VII. Pest control. Autumn seedling watermelon seedless mainly anthrax and blight, can be controlled by 75% chlorothalonil 800 times, or used to control 100 times 500 grams of liquid. Insect pests are mainly melon locusts, aphids, etc. They can be treated with 10% imidacloprid 3000 times solution or aryford 3rd 1000x solution spray. Chewy Dog Treats,Chewy Cat Treats,Chewy Bully Sticks,Chewy Dog Bones Jiangxi Welton Pet Products Co., Ltd. , https://www.weltonpetcare.com
Key Techniques of Seedless Watermelon Cultivation in Autumn Greenhouse