Balanced fertilization of wheat can prescribe the right medicine, increase wheat yield, reduce production costs, and avoid pollution caused by improper fertilization. Generally, 500 kg of wheat land per mu needs to absorb about 14-16 kg of pure nitrogen, 5-7. 5 kg of phosphorus, and 10-20 kg of potassium. According to the growth rules and nutritional characteristics of wheat, balanced fertilization should grasp the following four points: 1. Organic and inorganic combination, NPK combined with organic fertilizer application, can fertilize soil fertility and improve soil structure. The wheat field with sufficient base fertilizer is generally faster and stronger than the wheat seedlings with the same amount of fertilizer after the year. The wintering seedlings are less, the rate of ear formation is high, and the yield is significantly increased. Increasing the application of phosphate fertilizer is a new stimulation measure in wheat production, especially in phosphorus-poor soils. The use of phosphate fertilizers to break through, nitrogen and phosphorus combined methods, the effect of increasing production is very obvious. 2, returning to the green fertilizer should be due to the seedlings before the winter, the weaker or poor soil strength, early broadcast long-term de-fertilization of wheat seedlings, should be applied early, heavy application of green fertilizer, generally on the surface of the beginning of the frozen when the acres of ammonium bicarbonate 20 kg or so, phosphorus-deficient wheat field Mix and apply about 15 kg of superphosphate. Wheat fields with a large number of seedlings or high fertility without de-fertilization will not be returned to the green fertilizer, and will be postponed until the time of getting up, and the control will be effective, and the purpose of raising the rate of tillering and increasing the number of ears per mu will be achieved. 3. Reasonable use of fertilizer in the middle period is the period in which winter wheat requires the most water. Water demand accounts for about 35% of the total, and fertilizer accounts for about 50% of the total. Especially in the jointing and booting stage, it is very sensitive to the reaction of fertilizer and water. It should be about 15 kilograms of ammonium sulfate. 4. The extra-spraying of roots outside the roots has an obvious effect on increasing yield. Spray 2 times of phosphate fertilizer after flowering, 1000-grain weight can be increased by 2-3 grams, increasing yield by about 10%. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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