1. Suitable area Chuanyu Irrigation District. 2. The yield index is 250-300 kg of wheat per mu; 200-250 kg of corn; 2500-3000 kg of watermelon. 3, till the belt type autumn broadcast according to 300 cm open belt, sowing wheat 13 lines, occupying a bandwidth of 200 cm, reserved empty belt 100 cm, Hunchun April live in the empty belt live 2 rows of watermelon, line spacing (narrow) 35 cm The distance between wheat and melon is 32.5 cm; 7-10 days before the wheat harvest, a row of corn is broadcasted on both sides of the melon belt and between the big rows. 4, technical points 4.1 Wheat should use dwarf, anti-fall, high-quality, high-yield varieties, such as Xiaoyan 22, Xi Nong 9676, etc.; corn should use large rod varieties, such as Nongda 108, Zhengdan 958, 浚å•18, etc.; Mid-late ripe, large fruit type, disease-resistant, high-quality, high-yield varieties, such as Xi Nong 10, Hong Guan Long, Hua Feng and so on. 4.2 Watermelon large line width 265 cm, 500-600 seedlings per acre; corn large line width 112.5 cm, small line 75 cm, nest 80-100 cm, each nest double plant, 1333-1666 per acre. 4.3 In the reserved empty belt before winter, the 66 cm wide and 25-30 cm deep melon ditch, and the 3,000 kg of farmyard manure cooked in the mu ditch were used for winter irrigation. In the early spring of the next year, 50 kg of superphosphate per mu, 50 kg of ammonium bicarbonate and 50 kg of decomposed oil residue were applied in the ditch, and the soil and fertilizer were mixed to carry out spring irrigation. After the soil is thawed, fill the gully, do the ridges and cover the mulch. 4.4 After harvesting, the wheat should be ploughed and smashed in time, and the whole branch will be pressed and vine, and combined with irrigation, the fertilizer will be applied, and 5-6 kg of urea and 10 kg of potassium sulfate will be applied. When the young fruit of watermelon grows to the height of walnut, it should be applied once for the expansion of melon fertilizer, pouring a water of expanded melon, and applying 10-15 kg of urea and 10 kg of potassium sulfate. The result is spraying potassium dihydrogen phosphate or chelated micro-fertilizer. 3-4 times. 4.5 Disabling 2.4-D butyl ester weeding during the symbiotic period of melon. At the seedling stage of watermelon, attention should be paid to the prevention and control of anthracnose disease. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Multi Span Plastic Film Greenhouse Arch greenhouse is a kind of economical greenhouse, which is welcomed by the users with graceful curve form and low cost. It has beautiful appearance, fluent visual, reasonable structure and good performance for keep temperature. It is economical greenhouse because of its relatively low manufacturing cost. It can be applied in most areas of China. Double membrane greenhouse is used more in north of China, while single film greenhouse is used more in southern region. It can get maximum sunlight when visible light is within the scope of 0.4 to 0.7 microns and form a thick envelope, which can effectively prevent heat loss and prevent the invasion of cold air. Adopting a double membrane can greatly improve heat preservation performance of the greenhouse and save operating cost. The top cover material is polyethylene lifelong anti-fog and anti-dipping film po-covering. The outer of it has the function of UV protection and the inner has the function of preventing from the sets of dew. According to the needs of customers, the sides of the greenhouse can be covered with polyethylene lifelong anti-fog and anti-dripping po-covering or polycarbonate hollow plate. Multi Span Plastic Film Greenhouse,Pc Board Greenhouse,Pc Sheet Covering Greenhouse,Greenhouse Pc Board JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.thgreenhouse.com