Application of response surface methodology for optimization of potato tuber yield.

Abstract

This study investigated the operating conditions required for optimal production of potato tuber yield in Kenya to help potato farmers to save extra cost of input in potato farming. The potato production process was optimized by the application of factorial design 23 and response surface methodology. The combined effects of water, nitrogen and phosphorus mineral nutrients were investigated and optimized using response surface methodology. It was found that the optimum production conditions for the potato tuber yield were 70.04% irrigation water, 124.75 kg/ha of nitrogen supplied as urea and 191.04 kg/ha phosphorus supplied as triple super phosphate. At the optimum condition, one can reach to a potato tuber yield of 19.36 kg/plot of 1.8 m x 2.25 m. Increased productivity of potatoes can improve the livelihood of smallholder potato farmers in Kenya and save costs of inputs. The approach applied in this study of potatoes can be useful for research on other commodities, leading to a better understanding of overall crop production. Keywords: Potato, Nitrogen, Phosphorus, Factorial design, Experiment