This study was conducted to assess economic optimum NPK fertilizer ratios for high yield and good quality sugarcane production. An experiment using two rates each for N, P and K was planted in July 1996–1998 at sugarcane experimental field Badeggi, Nigeria. The rates were 30 and 90 kg N ha-1, 20 and 50 kg P2O5 ha-1, and 40 and 60 kg K2O ha-1. Data were collected on the plant crop, first and second ratoon crops. Single factor production function/value productivity function models were used. The results indicated that NPK (90–50–40) ratio was the economic optimum level, when 50% of nitrogen and whole of P and K was applied at planting, and the remaining N split applied in equal doses at 5–6 and 10–12 weeks after first application.
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Wayagari, J.W., Amosun, A. & Misari, S.M. Economic optimum NPK fertilizer ratios and time of application for high yield and good quality sugarcane production. Sugar Tech 3, 34–39 (2001). https://doi.org/10.1007/BF02945528
- NPK ratios