According to the soil fertility of arable land, the law of fertilizer absorption and wheat yield requirements. Summarize the following three principles of fertilization for wheat: (1) Organic fertilizers are combined with inorganic fertilizers on the basis of organic fertilizers. Organic manure has many advantages, such as wide source of fertilizer, low cost, full nutrients, long fertilizer effect, high organic matter, and ability to improve soil, etc. It not only promotes the increase of production in the current year, but also guarantees the increase of production in successive years, continuously improves the soil fertility, and strengthens the stamina of agricultural production. Organic fertilizer has low nutrient content, large dosage, and slow fertilizer effect. When wheat needs certain nutrients urgently, it must also be supplemented with chemical fertilizers to complement each other. In order to truly achieve the purpose of improving soil fertility and continuous production increase. (2) Apply basal fertilizer and apply fertilizer and topdressing rationally. The amount of basal fertilizer generally accounts for 60% to 80% of the total amount of fertilizer. Applying basal fertilizer has an important role in promoting early seedling growth, cultivating strong seedlings before winter, increasing the effective tillering rate, and increasing stalks and stalks. Base fertilizer is generally used as organic fertilizer. Mainly at the same time with nitrogen, phosphorus fertilizer. Fertilizer can not only continuously supply nutrients during the whole breeding period of wheat, but also has a good effect on controlling the prosperous growth of wheat plants and preventing premature aging. At the same time, it can also improve the soil, promote the reproduction and activity of soil microorganisms, and continuously improve. Soil fertility. On the basis of applying basal fertilizer, reasonable top-dressing is an important measure to make full use of the fat source to increase production. The so-called rational top-dressing is based on the law of demand for fertilizer for a lifetime of wheat, and it can purposefully meet the demand of fertilizers for crops in a timely manner. Fertility absorption during the growth of the law is: the winter before the absorption of nitrogen fertilizer, phosphorus, potassium, followed by, in order to meet the emergence of wheat immediately after the absorption of nitrogen fertilizer, in production are generally applied urea 1.5 to 2.5 kg as a seed fertilizer, which is to increase wheat Pre-winter tillering and promotion of secondary root growth have a good effect. In the winter and returning to the green stage, nitrogen fertilizer is still absorbed more, and phosphorus and potassium begin to increase significantly. Therefore, fertilization during wintering season, except for a small amount of nutrients needed for the slow growth in winter, basic On the spring action, it promotes wheat rooting, returning to early green, consolidating tillering before winter, improving the rate of tilling tilling before winter, and if it is not lacking, it may not be applied. During the period from the returning to the jointing stage, the absorption of potassium is the highest, and the absorption of phosphate fertilizer increases rapidly. Since there is phosphate fertilizer in the base fertilizer, if the growth is more prosperous, it may not be applied. If it is lacking, the green manure should be applied early to increase the effective tillering and increase the rate of spike formation. At the heading stage of jointing stage, the absorption of nitrogen, phosphorus, and potassium in wheat reaches the highest peak. This period of fertilization is the key period for increasing the number of grains per spike. It is to create a high yield, and sufficient water and fertilizer should be provided for this period. In addition, nitrogen fertilizer transfer technology is the key to improve the quality of high-quality wheat. At heading and maturity stage, the absorption of nitrogen, phosphorus, and potassium in wheat generally declines. However, in addition to potassium, nitrogen and phosphorus continue to be absorbed until maturity, especially in phosphate fertilizer, which can grout a strong grain and make grains of wheat grains heavy. Therefore, in order to meet the demand for phosphate fertilizer in the later period, extra-root fertilizer is often adopted, which has become a powerful measure to increase wheat production. (3) The base fertilizer is applied in layers, and chemical fertilizers must be applied deeply. The basal application of the basal fertilizer refers to the application of fertilizers in two layers, deep ploughing and burial after the first application of organic fertilizers, the second time using organic fertilizer with good quality in combination with quick-acting fertilizers, and the application of shallow ploughing and hoeing to the fertilizers after application. Evenly distributed in the soil, or applied in the ditching so that the wheat can obtain certain fast-acting nutrients at the seedling stage, and the fertilizers buried in the middle and lower layers of the soil can ensure the needs of the late wheat growth stage. Fertilizers are top-dressed with 5–10 cm depths, especially nitrogenous fertilizers such as ammonium bicarbonate, ammonia, etc., which are highly volatile nitrogen fertilizers. They must be deeply applied. Deep application can make chemical fertilizers covered with soil to prevent evaporation and loss. , Fertilizer efficiency is stable, is conducive to root absorption, improve fertilizer utilization, give full play to fertilizer effect, deep application than the ground can generally increase fertilizer efficiency 10% to 30%. The methods for applying chemical fertilizers are: (1) Deep basal application: Combine ploughing, applying ploughing, then fine leveling. (2) Fertilizer application: Under the condition of good lye, the seed fertilizer is planted under the seed or under the seed, and the nitrogen fertilizer can also be used as a compost with the decomposed organic fertilizer and phosphate fertilizer. Do not get too close to the seeds to avoid burning them. (3) Dressing and applying ditch or acupuncture points: Ammonium bicarbonate, ammonia and urea should be applied by ditching or applying a hole in the soil, using a fertilizing device, ammonia hydrazine, liquid fertilizer deep applicator, etc., and applying nitrogen fertilizer to 5 to 10 cm or less. In the soil layer, and pay attention to Shi shi, ditch application or hole application of soil than the surface application can improve the fertilizer efficiency of about 30%. Canned fruit is named after different materials. Generally, canned fruit is made from fruit, including yellow peach, apple, lychee, strawberry, hawthorn and so on. The main products are canned peach, canned strawberry, canned orange and so on. fruit can,can fruit,tinned fruit,cocktail fruit in syrup,canned fruit cocktail KARAK , https://www.jskarak.com