Fertilizer fertilize the basic fertilizer, nitrogen, phosphorus and potassium, re-apply phosphate fertilizer, supplement micro-fertilizer, organic fertilizer where conditions permit. Tests have shown that finely seeded wheat fields generally require that the soil fertility exceeds 1.22% of organic matter, and total nitrogen, hydrolyzable nitrogen, available phosphorus, and available potassium reach concentrations of 0.084%, 47.510E-6, 29.810E-6, and 91104, respectively. At the same time, it is necessary to improve the quality of soil preparation, properly deepen the plough layer, and make the ground smooth. The selected varieties with good seedlings had high productivity, lodging resistance, large panicles and large grains, compact plant type, strong photosynthetic ability, high economic benefits, early maturity, good yellowing, and good disease resistance and resistance. Proper sowing of winter and semi-winter varieties in the Huaibei wheat area begins at the beginning of October and ends on October 15. The spring varieties begin to sow on or around October 15 until the frost falls. The spring wheat variety in the central Jiangsu region of Huainan will be planted on October 20th and will be completed by the end of October. The spring variety in Huainan's hilly wheat area will be planted on October 25th and will be completed by the beginning of November. Spring varieties of the Taihu Lake region in southern Jiangsu began planting around October 25 and ended before November 5. Super-seeded plots can be sowed in advance. The reasonable sowing rate is 4 to 7 kilograms per mu, and the basic seedlings are 6 to 140,000 per mu. The basic seedlings in the wheat area of ​​Huaibei are between 6 and 100,000 plants, which is 1/5 of the expected number of panicles; ~ 120,000 strains are 1/3 of the expected number of spikes; 100,000 to 140,000 strains in the southern part of the South Jiangsu area are 2/5 of the expected number of panicles. Sowing must be carried out with an extension of the planting schedule, so as to ensure that the planting depth is consistent. Cultivate strong seedlings First, the seed dressing of pesticides, seedlings with dwarf seedlings, paclobutrazol, chlormequat, Zhuangfengan, etc. can promote root growth and increase seedlings. The use of seed dressings such as Rikenxi, streptomycin, and phoxim can prevent pests and diseases. Should pay attention to the seed dressing dose can not be too large, and now mixed with broadcast, otherwise it will inhibit the emergence of coleoptile, affecting the advantages of tillering; Second, strengthen the repression of the long seedlings and winter wheat seedlings coverage work. Repression should be held in sunny weather, heavy pressure Wang Miao, control and promote the root, control and prosper, and reduce frost damage. Straw, organic fertilizer, ditch and other covering wheat seedlings can play a role in fertilization, warming, antifreeze, alum, weeding, and strong seedlings. High-efficiency fertilization Pay attention not to apply wax nitrogen fertilizer and regreen nitrogen fertilizer often applied in large-area production in order to reduce ineffective tillering and ineffective growth. The target yield of 500 kilograms per mu in Huaibei is about 22 kilograms of pure nitrogen per mu, and the target output of 400 kilograms in Huainan is about 18 kilograms of pure nitrogen, and the ratio of nitrogen, phosphorus pentoxide, and potassium oxide is approximately 1:0.5:0.6. The proportion of N fertilizer (fertilizer) and topdressing fertilizer is controlled at about 5:5, and the top-dressing middle-weight relay fertilizer accounts for 10% of Zuo Shi. The jointing and panicle-booting panicle fertilizer can be applied twice, and the jointing fertilizer (falling 3-leaf stage) accounts for about 25%. Flag leaf fertilizers account for 10%.
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