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(1) The management of the Wang Miao wheat field in Wang Miao wheat field should be a good job as a key task in all local spring management. Wang Miao wheat field in the year before the number of stems reached 800,000. Due to the large population and slender leaves, this type of wheat field is likely to cause field cover, poor illumination, and lodging after the jointing period. Therefore, the spring management should adopt measures based on control and control. 1. Early buckwheat. For excessively prosperous wheat with dry leaves, after the soil is thawed in early spring, we must use the medlar to carry out the dry leaves in order to ensure the normal growth of wheat. 2. Timely suppression. The repression of wheat during the period of rejuvenation and its resumption of life is a good measure to control the growth of the disease. When the repression begins, it must begin after 10 a.m. on a frost-free day. Note that there is no pressure on the frozen wheat fields so as to avoid damaging the wheat seedlings. Saline-alkali wheat fields are not pressed to prevent soil compaction and affect soil ventilation. The jointed wheat field has not been pressed to avoid breaking the internodes, resulting in insufficient panicles. 3. Spray chemical control agent. For excessively prosperous wheat fields, the spraying of “Zhuangfengan†and “Maijujin†chemical control agents at the time of wheat returning to the beginning of growth can inhibit the elongation of the first internodes of the base, control the overgrowth of the plants, and promote root barcing. To prevent late growth during childbirth. Generally 30 ~ 40 ml of mu, 30 kg of water, foliar spray. 4. Determine the watering time for spring top dressing due to seedlings. (1) For the year when the vegetative growth of the plant is too prosperous, the soil consumption is too large and there is a phenomenon of “defertilizationâ€. If the population is not large, the total number of stems per acre in early spring is 80. Millions or less, you can see the seedlings after returning green, get up early in the top dressing and watering. If the group is too large, you can top-dress and water. Generally, about 15 kilograms of urea is applied per acre to prevent excessive seedlings from turning weak seedlings. (2) For excessively prosperous wheat fields without de-fertilization, do not rush to fertilize water in the early spring. Pay attention to measures such as repression, ploughing and spray control to properly control seedlings and avoid excessive spring tillering. In general, fertilizer should be applied at the late jointing stage. The amount of fertilization is 15 kg of urea. (3) For prosperous wheat fields that suffer from freezing injury, 7 kg of urea should be applied per acre combined with watering in the returning green stage of wheat in early spring, and then urea should be combined with watering at the jointing stage. About kilograms. (4) For a prosperous wheat field without water-flowing conditions, the remediation should be carried out immediately after the soil is thawed in the early spring, so as to raise and protect the crop. After the wheat got to the jointing season and rained, grabbed the rain to catch fertilizer. Mu generally recovers about 12 kg of urea. (b) The population of a type of wheat field and a type of wheat field is generally 600,000 to 800,000 per mu, which are mostly strong seedlings. In terms of management measures, attention should be paid to the combination of promotion and control in order to increase the rate of tillering and spike formation and to promote the use of large grains and spikes. In the management of water and fertilizer in such wheat fields, it is necessary to highlight the shift of nitrogen fertilizers. High-level soil fertility, suitable for sowing, a group of 700,000 to 800,000 in a type of wheat, in the middle of the jointing of wheat in the top dressing watering, in order to obtain higher yields. For the general level of the ground, a group of wheat fields with a population of 600,000 to 700,000 should be subject to fertilizer and water management at the beginning of the jointing season of wheat. Generally combined with watering mu urea 15 kg. (C) The second type of wheat in the second type of wheat generally has a population of 45 to 600,000 per acre, which is a transitional type between weak seedlings and strong seedlings. The focus of field management in spring is to promote the occurrence of spring tillering and increase the percentage of tillers and spikes. The second level wheat field with a high level of soil fertility in the group of 55-600,000 was topdressed with water after the wheat got up and before the jointing. The second level wheat field with a level of 45-55 thousand in general was used for fertilizer and water management in the wheat growing season. Generally combined with watering mu urea 15 kg. (4) The three types of wheat fields in the three types of wheat fields generally have less than 450,000 per acre population and are mostly late-seeding weak seedlings. Spring field management should be based on promotion. Late buckwheat as long as the sensation is acceptable, should try to avoid watering in early spring, so as not to reduce the temperature, affect the soil permeability delay the growth and development of wheat. Generally, it is necessary to top-dress fertilizer in the returning green period so that the fertilizer effect will act before the peak of the tiller, so as to increase the tillering in the spring, consolidate the tillering before winter, and increase the number of mu ears. Fertilizer management should pay attention to: 1. Groups of about 400,000 late seeding weak seedlings, in the better lyrical conditions, spring top dressing should be divided into two: the first time, in the middle of returning green, 5 centimeters when the ground temperature began around 5 °C, Apply 50% nitrogen topdressing fertilizer and appropriate amount of diammonium phosphate, and water at the same time to promote tillering and root growth, and increase tiller success rate. The remaining 50% of fertilizers will be applied at the late stage of jointing to promote the development of wheat and increase grain size. number. 2. For a wheat field with a population of nearly 450,000, it is generally top-dressing and watering. General acres topdressing urea about 15 kg. 3. For weak seedlings and wheat fields without water-flowing conditions, in the early spring, on the basis of repression, cutting and smashing, after the soil is returned to slurry, apply nitrogen fertilizer with chemical fertilizers or ditching to facilitate the increase of mu ear. Number and grain number, increase grain weight and increase yield. The application of phosphate fertilizer to the base fertilizer is to apply diammonium phosphate in the nitrogen fertilizer.