ROLE OF OIL CAKES AND ORGANIC MANURES ON NUTRIENT UPTAKE AND NUTRIENT USE EFFICIENCY IN PLANT AND RATOON CROPS OF SUGARCANE

摘要

A Jour year field experiment was conducted at Sugarcane Research Station, Vuyyuru, to assess the use of organic materials and inorganic fertilizers on plant and subsequent ratoon crops. The organic materials used as compost include press mud, farmyard manure (FYM), and green manure (GM) of sunhemp (Crotalaria juncea), the oil cakes (neem cake, castor cake) and vermicompost. The results of study revealed that 50% reduction of inorganic fertilizer with oil cakes or organic materials in plant cane and addition of 50% more N with same amount of fertilizer suggested for ratoon crop showed better yield, nutrient uptake and improved juice quality and soil characteristics in first and second ratoon crops of sugarcane.