First, the preferred variety is an important factor affecting wheat yield. Winter and semi-winter varieties should be planted according to local climatic conditions, especially temperature conditions. Cold resistance, high yield, and stem flexibility are also important for lodging resistance. Avoid blindly selecting seeds to prevent large losses. According to the drought situation increasing year by year, water-saving varieties should also be selected. Second, the fine soil preparation for many years of rotary tillage, the formation of a solid plough bottom layer in the plowing layer of about 15 cm, so that the roots of wheat under the tie is difficult, and bacteria are concentrated in the plough layer, so that the degree of pests and diseases increased year by year . For the continuous rotation of 3-4 years of land should be deep plowing 20 to 25 cm, to achieve full burial of crushed corn stalks, breaking the plough bottom, loose plow layer, promote root bar. Under no conditions for deep plowing, we should rotate and plow 3 to 4 times as much as possible on the basis of smashing and squeezing the stalks. If possible, one-third of the stalks can be cleared to fully bury the stalks and level the soil. The soil after rotary ploughing is very loose. Should be sown after sowing, otherwise there will be too deep sowing phenomenon, a direct impact on sowing quality and strong seedlings early. Third, pouring enough water pouring at the end of the foot can adjust the water storage conditions of the wheat field, reducing the number of times wheat watering, water efficient. After this year's fall, more rain is better. If the rainfall in September is more than normal, the amount of water poured into the bottom may be less than 50 cubic meters per mu. Fourth, scientific fertilization Scientific fertilization is the use of fertilization to regulate soil nutrients, on the one hand to provide all-round nutrition for wheat, on the other hand do land use, the combination of cultivated land, according to the results of soil testing, combined with the intended output target to determine the amount of scientific fertilizer. Many years of practice have proved that under the condition of medium-level or above soil fertility, the target of yield per mu of 500-600 kg is realized, and 1.5-2 m3 of soil-fertilizer, 15-20 kg of diammonium phosphate, 10 kg of urea, and potassium sulfate are required per acre. Potassium chloride 15 kilograms, zinc sulfate 1 to 2 kilograms, all under one application. Straw returned to the plots were also applied 5 kg of urea per acre to adjust the ratio of carbon to nitrogen and accelerate the decay of returned corn stalks. V. Appropriate cropping and appropriate planting Due to the delay in the sowing of this year's corn planting period, the maturation period is also postponed. In order to ensure that the maize yield during late harvest and wheat planting are not misused, the corn is required to adopt mechanized harvesting at the ripening stage to shorten the harvesting time. From October 5th to 15th, plant a good wheat. Use 15 cm and other spacing in full density sowing, sowing depth of 3 to 5 cm. In order to improve the quality of sowing, in-line rebroadcasting techniques can be used (that is, the amount of seeds per acre is divided into two equal parts, and the machines are broadcasted for the first time and then replayed again in the broadcasted line). During the suitable sowing period, Shijiazhuang No.8, Shimai No.15 and other varieties with strong tillering ability began to harvest 12-15 kg per mu from October 5. Hengguan 35,4399 and other species under the same amount of 16.5 kg per acre were suitable for broadcasting. During the period of sowing one day per night, the amount of the following species increased by 1 to 1.5 kg/mu, and the maximum sowing rate of the late-planting plots did not exceed 20 kg/mu. 6. Repression after sowing after sowing and squashing can not only smash the rubbish and solid soil, but also keep the moisture content, reduce evaporation consumption before winter, ensure the safe winter wheat, postpone the first watering time in spring, and save water and reduce consumption. In recent years, this technology has been well-developed lands, and it has demonstrated that cold and drought resistance are better than land with poor repression quality in the face of warm winter and strong cold air. It should be promoted vigorously this year in wheat production. VII. Prevention of Diseases and Insect Pests In recent years, systemic diseases such as wheat sheath blight, full-bleeding disease, and underground pests such as cockroaches and beetles have increased year by year. Effective measures should be taken to prevent them before sowing. The first is to do a good job of plant quarantine, and prevent the planting from the full-eclipse disease area. The second is the fall of rotation. In the case of wheat sheath blight and full erosion, the best way to prevent such diseases is to turn crops such as cotton and Beans for 2 to 3 years. The third is seed dressing. In the last year, the field where the land was totally eroded was lighter, and 10% total etched net (the active ingredient was Thiobacillus copper) was used for dressing. The ratio of drug to seed was 1:200. Rhizoctonia solani can be used 20% triadimefon EC seed dressing, the amount of 0.15% of the seed amount. Phosphate and other insecticides can be used to control underground pests, and the amount is 0.3% of the seed amount. Insecticides are mixed with the seed dressing, slightly dried and mixed with bactericide, and then mixed and stuffed for 2 to 3 hours before sowing.
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