Vol. 11, Special Issue 8 (2022)

Author(s):
Ghodke SK, Bhilare RL, Nimbalkar RU, Nalawade SV and Raskar BS

Abstract:
A field experiment was conducted at Central Sugarcane Research Station, Padegaon in preseasonal sugarcane (2015) with its three successive ratoons (2017-20) in split plot design with three replications with an object to assess the effect of recycling of sugarcane crop residues and it’s industrial wastes on yield, quality and nutrient uptake of sugarcane, study the soil properties as influenced by decomposition of sugarcane crop residues and it’s industrial wastes, to assess the changes in soil organic carbon as influenced by various treatments of in situ decomposition of sugarcane crop residues and industrial wastes and to assess the possibility of saving of chemical fertilizers. The experimental results recorded and mentioned during preseasonal sugarcane and its three ratoons. It consists of main plot treatment as sugarcane crop residues and industrial wastes management with sub plot treatment comprising fertilizer levels. In situ recycling of sugarcane crop residues + press mud compost + post biomethanated spent wash + bagasse ash recorded significantly higher cane yield, CCS yield, average cane weight and number of millable canes per hectare also improved physicochemical properties of soil. However, effect of fertilizer levels results showed that the fertilizer level receiving 100% recommended dose of fertilizers recorded significantly higher cane yield, CCS yield, average cane weight and number of millable canes and it was at par with 75% recommended dose of fertilizers in respect to cane yield, CCS yield, average cane weight and number of millable canes and at par with 50% recommended dose of fertilizer in respect to average cane weight. While in terms of soil chemical parameters showed significant results for organic carbon, available nitrogen, available phosphorus and available potassium as compared to soil initial status. The significantly higher total uptake of nitrogen, phosphorus and potassium were noticed in sugarcane at harvest. The higher gross and net return were observed in the In situ recycling of sugarcane crop residues + press mud compost + Post biomethanated spent wash + bagasse ash (Rs. 3,14,879 and Rs. 2,31,749) with higher benefit cost ratio (2.83). The 100% recommended dose of fertilizer recorded significantly higher gross and net return (Rs. 3,18,617and Rs. 2,29,718) while higher benefit cost ratio (2.57) was recorded in both 100 and 50% recommended dose of fertilizer. Thus, result shows that decomposition of sugarcane crop residue and industrial wastes along with 100% or 75% recommended dose of fertilizers found to be better for enhance farmers income as well as improves soil health.