Sugarcane has a long growth period and high yield. It usually produces 5-8 tons of cane stalks and 10 tons of high-yield fields. It absorbs more nutrients throughout the growing season and is a comparative fertilizer requirement. One of the big crops. According to research, for every 1000 kg of sugar cane grown, 1.5-2 kg of nitrogen (N) and 1-1.5 kg of phosphorus (P2O5) should be extracted from the soil. 2–2.5 kg of potassium oxide (K2O) and 0.5–0.75 kg of calcium oxide (CaO). We divide the life of sugarcane into the seedling stage, the tillering stage, the elongation stage, and the process maturity period. The absorption of nitrogen, phosphorus, and potassium in the seedling stage accounts for the absorption during the whole growing period, respectively. The total amount of 8%, 9%, 4%; to the delivery period, respectively, 16%, 18%, 14%; to the extension of the period accounted for 66%, 68%, 74%; to maturity respectively accounted for 10%, 6%, 8%. It shows that there must be sufficient nutrient supply in the early stage of sugarcane growth to promote root development, early tillering, more tillering, and effective sugarcane increase. Number of stems. In the middle of sugarcane growth (elongation period), sugarcane grows quickly and needs to absorb a large amount of nutrients, showing a clear absorption peak, at this time nutrition Supply should be sufficient, otherwise it will directly affect the yield of sugar cane. Second, fertilization technology 1, apply base fertilizer The base fertilizer should be dominated by organic fertilizers and used in conjunction with chemical fertilizers to create good conditions for the rapid growth of sugarcane sprouts, root elongation, and early and strong tillering. General mu Apply 1500-2000 kg of fully-fertilized organic fertilizer with 20-30 kg of general-purpose compound fertilizer (15-15-15). When applied, spring planting sugarcane is planted In the ditch, the organic fertilizer is applied to the bottom of the ditch, and inorganic fertilizers are applied on both sides of the ditch. In winter, sugar cane is used as a cover fertilizer for organic fertilizer and then covered with a layer of soil. 2, early Shi Ti Miao Fei The sugarcane seedling stage requires less fertilizer but requires fertilization. The demand for nitrogen is large, followed by potassium and phosphorus. Early application of Miao Fei not only promotes the growth of sugarcane seedlings and roots, It also promotes the growth of leaves, increases the area of ​​leaves, increases photosynthesis, and thus promotes the early birth and fast growth of delivery. If fertilization is insufficient, it will lead to seedlings, The alfalfa grows short and stunted. Even if it is supplemented with fertilizers later, it is difficult to recover, eventually leading to a decline in yield and quality. Miaofei recommended high nitrogen recovery Hefei, when the cane seedlings grow to 3-4 leaves, apply 8-10 kg of compound fertilizer per mu. When applying, it should be combined with direct cultivation of cultivating soil, or watering hole, in When drought occurs, water points should be used. In addition, it is necessary to check the shortage of seedlings in a timely manner so that the groups grow neatly. 3, stable application attack fertilizer The tiller fertilizer should be determined according to the specific circumstances. If the base fertilizer and the extracting seedlings are sufficient and the seedlings are strong, they can be applied once at the peak of the tillering period, and the amount of fertilization should be less; If the base fertilizer is insufficient, the seedling fertilizer is not enough, and the seedling growth is weak, the amount of fertilizer should be increased and it should be divided into two applications. Once in the early stages of childbirth to promote childbirth , called attack Feifei. It is applied once at the time of childbirth and guarantees strong growth. Conventional fertilizer application of high nitrogen and potassium fertilizer, Mushi 8-15 Kilograms, the same as the Miao Fei Shi points, while earth 10-12 cm high. 4, re-apply attack stem fertilizer The attacking stem fertilizer is the key to increasing the yield of sugarcane and must be replanted. The main attack stem fertilizer is topdressing nitrogen fertilizer. It is generally applied twice at the beginning of elongation and at the peak of elongation. Apply 15-20 kilograms of high-nitrogen compound fertilizer per acre, combined with cultivating large-scale soil, to promote the growth of the roots of the cane, strengthen the absorption function, and increase the resistance to rolling. If you Phosphorus and potassium in the period should be supplemented, so that it can not only achieve the maximum growth, but will not reduce the sugar content and yield due to excessive nitrogen fertilizer. 5, make up strong tail fertilizer In order to promote and maintain the growth of the later period, it is beneficial to raise the underground cane buds and lay a good foundation for the perennial year of the roots. Generally before mature two About 5 to 8 kilograms of compound fertilizer per acre in a month or so. The application time should not be too late, the amount should not be too much, so as not to delay the maturity and reduce the sugar, after the application Line earth. If the phenomenon of defertilization occurs 1 month before harvest, foliar fertilizer application shall be carried out, with 4 kg of monopotassium phosphate per acre, 0.5 kg of urea mixed with 100 kg of water and sprayed. fog. Fertilization points 1. When composting, it must be combined with cultivator soil, fertilized soil and prevent fertilizer loss. 2, according to the growing situation of seedlings, adjust the amount of fertilizer. 3, the effect of top dressing after rain is better. Pet Massager,Cat Massage,Dog Massage,Pet Groomer Tools Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizon.com
Fertilizer demand regulation and fertilization technology in sugarcane
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