Precise macronutrient application can improve cane yield and nutrient uptake in widely spaced plant-ratoon cycles in the Indo-Gangetic plains of India

Introduction Sugarcane is a long-duration and nutrient-exhaustive crop. To improve nutrient use efficiency, the 4R stewardship approach comprises applying nutrients at right time place with method proportion. Improper management in such crop will result various losses environmental pollution. Methods Concerning this, field study was performed on calcareous soils of lower Indo-Gangetic plains India during two subsequent years Research Institute, RPCAU, India, to explore effect precise application macronutrients (N K) different methods applications. The (broadcasting band application) were maintained main plot, split N K applications put subplots. Results Discussion A highly significant difference observed numbers millable cane, sugar yield under fertilizer. decline cane numbers, due broadcasting tune 17.5 17.6%, 14.8 17.1%, 14.7 15.8% plant ratoon crops, respectively as compared placement fertilizers. Yield increased by 16.0 15.1% respectively, seven control (two no K). Band fertilizers markedly improved nitrogen uptake (284.1 287.3 kg ha −1 , ratoon, respectively) phosphorus (34.9 28.3 when broadcasting. Application splits resulted better availability soil, thereby facilitating higher NPK plants both comparing splitting K. From this study, it that coupled best fertilizer protocol, ensuring growth, yield, quality, sugarcane plains.