Sugarcane high yield and high sugar fertilization technology

Sugarcane has a long growing period and requires a large amount of fertilizer. According to the study, each ton of raw sugar cane is extracted from the soil by nitrogen (N) 1.5 to 2 kg, phosphorus (P2O5) 1 to 1.5 kg, and potassium oxide (K2O) 2 ~ 2.5 kg, calcium oxide (CaO) 0.5 to 0.75 kg.

In the growth process of sugar cane, the fertilizer requirements are different at different times. The general rule of fertilizer is roughly “two less, more middle”, that is, in the seedling stage, the fertilizer needs to be urgently cut and the absorption is less, and the demand for nitrogen is needed. slightly, phosphorus and potassium second; tiller stage, gradually increases the amount of fertilizer needed, absorbing 10% to about 20% of the total of the three elements; elongation into the absorption amount of the three elements of the surge It accounts for more than 50 % of the whole period . At this time, it is the high temperature and rainy season and the strong light season. Sugarcane has the highest utilization rate of light energy and nutrients, which is the key fertilization period. After the maturity period, the sugarcane needs less fertilizer.

The nutritional needs and characteristics of sugar cane, high-yield cultivation fertilizing according to "nutrition and growth requirements binding, binding of organic fertilizer and inorganic fertilizer, and long-acting fertilizer available fertilizer combination" principle.

　　 1, pay attention to organic fertilizer, create conditions necessary to find more organic fertilizers.

In sugarcane cultivation, manure and mature compost are good organic fertilizers. Organic fertilizers are suitable as base fertilizers. Generally, 1500 kg is used in the mu , evenly applied to the seedlings on both sides or seedlings, and then the fertilizer is applied to the compost. Cover the soil. The conditional sugarcane area should actively intercropped green manure and legume crops in the sugarcane field, and cooperate with the chemical fertilizer in the sugarcane topdressing and soil cultivation.  

　　 2 , according to the characteristics of various growth stages of sugar cane, nitrogen, phosphorus, potassium fertilizer combined application, apply sufficient base fertilizer, pay attention to attack fertilizer, and supplement the tail fertilizer.

Shizujifei in sugar cane cultivation, the growth period of 20 to 30% nitrogen, 60 to 80% phosphate, 60% to 80% (e.g., less all as base) potassium, silicon fertilizer base fertilizer mix cooperation, or on both sides administered seedlings On the seedlings, cover the soil again.

A replay attack fat stem, the end of May and early in June, rainy season, sugar cane jointing start, using more than 60% of the whole growth period of nitrogen and 20% to 40% phosphate, mixed evenly applied to the sugarcane root portion, large earth.

Strong tail of applied fertilizer, sugarcane growth cycle is long, a large amount of fertilizer needed, easy to Tuofei late, in order to ensure the latter is not premature and the following year ratoon sprout nutrition, should be in late August, in time of applied strong tail fat, general Use quick-acting nitrogen fertilizer.

Fertilization techniques above are for reference only, the actual production, but also timely fertilization based on sugarcane growth. In short, as long as we carefully follow the law of sugarcane growth, due to soil fertilization, it will achieve good yield-increasing effects.