Drought-resistant cultivation techniques of Spring sowing Maize

There is a serious drought in winter and spring this year. Since the beginning of spring, there has been little rainfall in most parts of our province, which has brought adverse effects on the production of spring sowing corn. In view of the current situation, the drought-resistant cultivation techniques of spring sowing maize are put forward for reference. 1. Select drought-tolerant and high-yielding varieties. The selection of varieties with good drought resistance and high yield according to local conditions is one of the effective measures to improve the yield of maize in dryland.? 2. Suitable for sowing in rain. After rainfall, the soil water content will increase, so we should seize the opportunity to sow seeds after rainfall in order to achieve the purpose of drought resistance, disaster reduction and yield increase. huh? 3. The application of half-mulch rainwater-harvesting, water-saving and fertilizing technology. In this technique, plastic film is covered between maize plants, or corn is planted (sown) on both sides of plastic film after plastic film is covered, so as to achieve the goal of water saving and high yield. Compared with seedling cultivation in open field and traditional open field direct seeding corn, this technique saves water by 16.2% and 12.9% respectively. The specific methods are as follows: (1) apply bottom fertilizer and bottom water in ditch. Before sowing or transplanting corn, dig a 20cm deep groove in the middle of the corn planting belt (build a water ridge at both ends of the ditch), apply 50kg of phosphate fertilizer, 10.5kg of urea, 1000 kg of raw manure and 500kg of water as base fertilizer and water in the ditch. (2) small ridges and double rows. After applying bottom fertilizer and bottom water to cover the soil, dig a ridge 0.6 feet above the ground and 1.2-1.5 feet wide at the bottom of the ridge. (3) cover the film with rain. After the accumulated rainfall of 20 mm or soaking rain for 3-5 days in spring, the ultra-micro film with a width of 1.2 to 1.5 feet was immediately covered on the ridge and pressed around with soil to keep the precipitation. (4) transplanting seedlings between membranes. Transplant corn seedlings at the edge of plastic film mulching and plant 2 rows per ridge. The planting specifications are narrow row spacing of 1.5 to 2.0 feet, plant spacing of 1.0 to 1.2 feet, and about 3600 plants per mu.