How to fertilize sugarcane scientifically

How to fertilize sugarcane scientifically? Please give guidance that sugarcane has the nutritional characteristics of more fertilizer, more potassium, and more fertilizer absorption in the middle and later stages of growth. 1. The application of sufficient base fertilizer should be based on organic fertilizer and should be used in conjunction with inorganic fertilizer. Generally, 1500-2000 kg of organic fertilizer, 5 kg of urea, 20 kg of calcium superphosphate, 8 kg of potash or 100 kg of plant ash should be applied per mu. When the fertilizer is sufficient, a part of it can be fully sprinkled during soil preparation, and the remaining part can be applied in the ditch when sowing, and the soil should be covered after sowing. If the amount of fertilizer is small, it should be concentrated in the ditch when it is planted. In order to give better play to the role of base fertilizer, organic fertilizer and phosphate fertilizer should be compost for more than 15 days, and then mixed with nitrogen, phosphorus and potassium available fertilizer. After sowing, 1500 kilograms of human fecal water was applied. 2. Early application of seedling fertilizer not only promotes the growth of sugarcane seedlings and roots, but also promotes the growth of leaves, expands the leaf area and increases photosynthesis, so as to promote the early growth and rapid development of tillers. The fertilizer for raising seedlings was applied when the seedlings were basically full of seedlings and the seedlings had 4 leaves. The main fertilizer for seedlings is available nitrogen fertilizer, with 40m / mu of clear water manure, 4kg of urea / mu, or 10kg of ammonium bicarbonate. If the amount of phosphorus and potassium in the base fertilizer is insufficient, it should be applied more at this time. Because the sugarcane plant is not closed, the root system is not developed, and the fertilizer absorption is not strong, in order to reduce fertilizer loss, hole application should be combined with ploughing and soil cultivation, and should be applied with water, especially in the case of drought. three. Stable application of tillering fertilizer should be determined according to the specific situation and the number of times. If the base fertilizer and seedling raising fertilizer are relatively sufficient, the sugarcane seedlings can be applied at one time at the peak tillering stage, and the amount of fertilizer should be less. If the base fertilizer is insufficient, the seedling growth is weak, the amount of fertilizer should be increased and applied twice. Once in the early stage of tillering, in order to promote tillering, called attack tillering fertilizer. Once applied at the peak tillering stage to ensure strong tillers, which is called strong tiller fertilizer. The tillering fertilizer is generally 40 kilograms per mu of human and animal manure and 8 kilograms of urea, which is the same as that of seedling fertilizer. 4. Re-application of stem fertilizer is the key to increase the yield of sugarcane. It has to be done again. Phosphorus and potassium fertilizer is mainly applied in the base fertilizer and early stage, so the stem fertilizer is mainly topdressing nitrogen fertilizer. Generally, it is applied twice in the early elongation stage and the peak elongation stage, each time applying urea 5ml 7kg per mu, or ammonium bicarbonate 15kg per mu for furrow application or hole application, combined with ploughing and large soil cultivation to promote sugarcane root growth, strengthen absorption function, strengthen sugarcane plants and enhance lodging resistance. If there is insufficient phosphorus and potassium in the early stage, it should be supplemented so that it can not only achieve the maximum growth, but also not reduce the sugar content and yield because of too much nitrogen fertilizer. 5. In order to promote and maintain the growth in the later stage, it is beneficial to cultivate the underground sugarcane buds and lay a good foundation for the persistent root in the following year. Generally applied two months before maturation, the application time should not be too late, and the amount of fertilizer should not be too much, so as not to delay ripening and reduce sugar content. General mu with ammonium bicarbonate 5 Mel 7 kg water application, and high soil cultivation. If you show the phenomenon of losing fertilizer one month before harvest, you can spray fertilizer outside the root. Click for more sugarcane planting techniques click to get more fruit planting techniques