First, sowing before drying. The sunseed can prevent mildew, prevent insects, promote ripening, increase the germination potential and germination rate, and facilitate the growth of strong seedlings. According to the test, compared with unheated wheat seeds, the germination rate was 14.6%-17%, and the average 667 square meters increased 14.5%. The method of wheat drying is: Select sunny days, evenly spread the wheat seeds on the mat, the thickness of 10-15 cm is appropriate, often turning during the day, piled up at night and cover, generally even 2-3 days of drying can be. Attention can not be directly on the asphalt or cement drying field, to prevent excessive temperature burns the seeds.

Second, soil preparation and fertilization. Land preparation is generally divided into two parts, namely, soil preparation before ploughing and soil preparation after ploughing. Land preparation before ploughing is mainly to kill locusts immediately, save precipitation in the rainy season as much as possible, and at the same time increase the roughness and flatness before ploughing on the uneven ground. After the cultivation, the soil preparation is mainly to further crush the soil and increase the tightness of the surface soil and the leveling of the ground. Before and after the snoring, the soil can be set as required. Soil preparation shall meet the following agronomic requirements: timely, in order to facilitate drought protection; the topsoil will be loosely crushed, and there will be a certain degree of tightness under the topsoil; the depth of work shall meet the specified requirements and be consistent in depth; the ground shall be level, no leakage, no pressure . The commonly used soil preparation machines are disk rakes, nail rakes, and rotary cultivators. Based on the application of organic fertilizers, the total application rate is 35-40 kg of 45% compound fertilizer and 15-20 kg of urea per 667 m2 of base fertilizer to meet the nutritional needs of wheat seedling growth.

Third, skillfully applied zinc fertilizer. When wheat is deficient in zinc, the plants are dwarfed and the leaf margins are distorted or shrunk. The veins turn from green to yellow on both sides of the veins, and yellow, white and green stripes appear on the edges. Zinc fertilizer is applied to zinc sulfate, which is generally used as a seed dressing, soaking, root dressing or root dressing. It can also be used as top dressing and base fertilizer. When zinc sulphate is sprayed or soaked, the general concentration is 0.02%-0.1%, and the seed dressing dosage is 2-6 grams of zinc fertilizer per kilogram of seed, which must be mixed with calcium, magnesium phosphate fertilizer and other fertilizers before sowing; as base fertilizer, The amount of 1-2.5 kg per 667 square meters is applied to the soil during site preparation. For top dressing, 1 kg of zinc sulfate per 667 square meters, 15-20 kg of dry soil or organic fertilizer is applied during the wheat seedling stage, and ditching is applied. Between the lines.

Four, clear trees before winter. Compared with the wheat fields of the clear trees, the clear-field wheat crops had an increase of 62,000 plants per 667 square meters of spring, an increase of 35,500 panicles per 667 square meters, an increase of 0.73 grains per panicle, and an increase of 26 kilograms per 667 square meters. , is an effective measure to increase production. The method and requirement of clearing wheat trees is to use a bamboo basket to cross the ridges from the center of the pipa surface. When the last row is cleared, the remaining soil can be picked up on the back of the quail. For properly sown wheat, the pre-winter clearing requires that the period from the 2 leaf stage to the end of the light snow season should be done so as not to deepen shallowly to prevent freezing and dead seedlings; the early spring clearing trees begin from the returning green stage to the end of the upright period. Before the tree, it is necessary to suppress it once.

Fifth, spraying anti-down. Spraying such plant growth regulators as paclobutrazol, uniconazole, chlormequat, and cezin can effectively prevent wheat lodging. 1 paclobutrazol. In the wheat growing season, spraying 30 kg of paclobutrazol solution with a concentration of 20010-6 per 667 square meters of wheat field can make the plant dwarf, enhance the lodging resistance, and increase the absorption and utilization of nitrogen fertilizer. 2 Uniconazole. The biological activity of 5% uniconazole WP is 6-10 times higher than that of paclobutrazol. Applying it on wheat can prevent the lodging of the plant and increase the 1000-grain weight and reduce the number of infertile spikelets. One kilogram of uniconazole solution at a concentration of 3010-6 to 4010-6 can be sprayed on wheat fields of 667 square meters within 1 week before the jointing of wheat. 3 help the prime factor. In the jointing stage of wheat, 15-20 ml of wheat flour is used per 667 square meters of wheat field. Spraying with 50-60 kg of water can inhibit internode elongation and prevent late lodging. 4 Chestnut. Before the winter freezing of wheat, spray with 0.3%-0.5% chlormethorine solution can inhibit the growth of plants and resist or reduce the occurrence of frost damage. For wheat fields with large population and strong growth, spray 0.15 per 667 square meters in the early jointing stage. %-0.3% of chlormeson solution 50-75 kg, can effectively inhibit internode elongation, make the plant dwarf, thickened and hardened stem base, to prevent lodging.

Six, potassium dihydrogen phosphate. Potassium dihydrogen phosphate is a high-efficiency, high-concentration, high-quality phosphorus and potassium binary high-efficiency compound fertilizer that is applied to wheat and has the advantages of preventing fall, preventing stains, preventing drought, increasing grain, and increasing weight. The key to the application of potassium dihydrogen phosphate to wheat is to clarify the meaning of “high-efficiency” and “composite”, master the application techniques, and use spraying more often, usually spraying 2-3 times. Spraying concentration is 0.4%-0.5%, that is, every 50 kilograms of water is 200-250 grams of potassium dihydrogen phosphate, about 100 kilograms of fertilizer solution per 667 square meters. When the specific operation is required, sufficient dissolution is required, and the number of sprays is controlled according to the seedling conditions.

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