How to fertilize sugarcane?

How to fertilize sugarcane? Please guide that sugarcane is an important raw material for sugar production. In China, sucrose accounts for 80% of the total sugar. Planting sugarcane has higher light energy utilization efficiency and land productivity per unit area. Compared with planting food crops, sugarcane is a kind of crop with higher economic benefits. In particular, the economic income per unit area of sugarcane eaten as fruit is generally 3 times or more higher than that of sugarcane for sugar production. In areas with a yield of about 5 tons per mu, the three elements of nitrogen, phosphorus and potassium absorbed from the soil by sugarcane for each ton of raw materials are converted to 1.75-4.35 kg of urea, 1.95-8.35 kg of calcium superphosphate and 2.5-4.15 kg of potassium chloride. The amount of nitrogen, phosphorus and potassium absorbed from the soil by each ton of sugarcane mentioned above, but not all the fertilizers applied can be absorbed and utilized by sugarcane, some are lost by gasification, some are lost with water, and some are fixed by certain elements in the soil, so the amount of fertilizer needed for each ton of sugarcane is about 1 to 2 times more than that mentioned above. Sugarcane life can be divided into seedling stage, tillering stage, extension stage and technological maturity stage. The ratio of nitrogen, phosphorus and potassium absorbed by sugarcane was 2, 1, 2. 2. The absorption of nitrogen, phosphorus and potassium at the seedling stage accounted for 8%, 9% and 4% of the total absorption during the whole growth stage, 16%, 18% and 14% at the tillering stage, 66%, 68% and 74% at the elongation stage, and 10%, 6% and 8% at the mature stage, respectively, that is, sugarcane should have adequate nutrient supply in the early growth stage to promote root development, early tillering and multi-tillering, and increase the number of effective stems of sugarcane. The obvious fertilizer absorption peak was in the middle stage of sugarcane growth (elongation period). The middle stage of growth is the elongation stage of sugarcane, with the proliferation and continuous renewal of shoot head, leaf and root, as well as the rapid elongation of sugarcane, the assimilation products gradually accelerate the accumulation, and the absorption of fertilizer increases greatly, accounting for more than 50% of the total fertilizer requirement in the whole period. During this period, the temperature, Rain Water and light were sufficient, and sugarcane had the highest utilization rate of light energy and nutrients. Therefore, the initial stage of elongation should be the key fertilization period, and fertilization should be based on the following principles according to the growth of sugarcane: ① should apply strong tiller fertilizer and re-apply stem fertilizer. Strong tiller fertilizer mainly uses available nitrogen fertilizer (urea, ammonium bicarbonate, etc.), which is more than strong seedling fertilizer, accounting for about 1520% of the whole period: strong tiller fertilizer combined with soil cultivation, stem attack fertilizer is applied from the end of tillering to early elongation, combined with large soil cultivation. ② increased application of organic fertilizer. Organic fertilizer can supplement soil humus, improve soil structure, continuously decompose and release soil nutrients, and continuously supply nutrients needed for the growth of sugarcane; the combined application of chemical fertilizer and organic fertilizer can not only improve the utilization rate of chemical fertilizer, but also promote the mineralization and decomposition of organic fertilizer. to improve fertilizer efficiency and complement each other. Early application of phosphorus and potassium fertilizer to ③. Phosphorus and potash fertilizer should be applied early, and it is best to be used as base fertilizer. If it cannot be used as base fertilizer, it should be finished at the beginning of tillering at the latest. Click for more sugarcane planting techniques click to get more fruit planting techniques