How to fertilize sugarcane in the stage of jointing and elongation

How to apply fertilizer in the long-term topdressing of sugarcane? Please give guidance after May, Rain Water will increase, sugarcane will also enter the jointing and extension period, the demand for fertilizer is very large, the lack of fertilizer in this period will affect the growth of sugarcane, the greatest impact on yield. Therefore, the key period of sugarcane topdressing is from May to early June, and most of the topdressing should be applied in this period. The main technical measures of topdressing are as follows: first, the amount of topdressing 1. The yield of sugarcane in mountainous areas is generally between 2Mel 3 tons, with the application rate of 5.5-6 kg of pure N (equivalent to 10-13 kg of urea) and 5-6 kg of pure K (equivalent to 8-10 kg of potassium chloride). 2. The yield of high-yielding fields such as flat land (paddy field replanting) is between 4mur5 tons, and the application of fertilizer is pure N 7-8.5 kg (equivalent to 15-18 kg urea) and pure K 7-8 kg (equivalent to 10-13 kg potassium chloride). 3. For high-yield fields with a yield of more than 6 tons per mu, 10-11 kg of pure N (equivalent to 20-25 kg of urea) and 10-11 kg of pure K (equivalent to 16-20 kg of potassium chloride) are applied per mu. P fertilizer is generally used as base fertilizer, and topdressing is added when the base fertilizer is insufficient. Second, the method of fertilization is generally carried out after rain or when the soil is wet, and topdressing should be combined with soil cultivation, which can reduce the workload and improve the work efficiency. After weeds are removed, evenly mixed fertilizer strips are applied (or applied) to 10 cm near the canes and covered with thick soil. Third, fertilizer should be paid attention to: (1) it is strictly forbidden to spread fertilizer on sugarcane stalks, lest the bud eyes at the base of burning sugarcane seedlings affect the sprouting of perennial roots in the coming year; (2) do not apply fertilizer before heavy rain, so as not to take fertilizer away by Rain Water; (3) do not apply fertilizer when the soil is dry, so as not to reduce the drought resistance of sugarcane. If ammonium bicarbonate is used, generally 1 kg of urea is equivalent to 2.5-2.6 kg of ammonium bicarbonate. Click for more sugarcane planting techniques click to get more fruit planting techniques