Evaluation of irrigation experiments with GGE biplot method and economic analysis of drip irrigation system: a case study of peanut production

Besides irrigation water quantity and quality, there is a decrease also in soil quality fertility. Agricultural production lands are decreasing both quality. There search for different operational alternatives sandy soils with low potentials. Drip largely practised to get greater yields per unit area. This study was conducted under sand conditions, commonly preferred peanut farming, the 2017- 2018 growing seasons. A drip system used production. Two intervals (2 4 days) four levels (I50, I75, I100 I125, calculated based on cumulative evaporation from class-A pan) were applied. Evapotranspiration values varied between 402-832 mm, applied quantities 313-783 5269-8269 kg ha-1, use efficiency (WUE) 0.63-1.55 ha-1 m-3, economic productivity (EWP) over gross revenues 1.29-3.81 $ m-3 benefit cost ratios (B/C) 4.73-10.95. The GGE biplot statistical method useful tool evaluation of research where number applications materials high.