|I N M|
|Use of Trash|
|Use of effluent waste|
|Use of green manure|
|Use of Bio-fertilizers|
Intergrated Nutrient Management
Fertilizers used need to be of right kind depending upon the soil type. For most sugarcane soils, urea is the most important source of nitrogen; super phosphate is the best source of P and muriate of potash, of K. However, various complex fertilizers also could be used. Rock phosphate, though recommended only in acid soils, could be used under normal cane growing soils in conjunction with organic manure or phosphorous solubilizing bacteria.
Availability of farm-yard-manure (FYM) is extremely limited due to dwindling cattle population and less employment of animal power for farm operations. Therefore, in sugarcane production system, important sources are press-mud, trash, and sugar factory and distillery effluents.
The press-mud contains about 1.26% N, 3.83% phosphorus and 1.46% potassium, besides about 20-24% organic carbon and 11% calcium. It is therefore an important source of nutrients in the integrated approach. The press-mud could be cured for about a month, or enriched by microbes like Pleurotus and Trichoderma and also could be prepared into bio-earth using distillery effluent and microbial degradation. About 10-25 t/ha of press-mud can be applied for supplementing nutrients.