• Hasan Sarhadi
• Majid Zahedi Dahoui
• Mahdi Sabati Gavgani

An experiment was conducted in Jiroft, South-East of Iran in order to investigate the effect of different doses of nitrogen and phosphorus on yield and yield components of potato. Four levels of nitrogen (0, 55, 110, 165 kg/ha) and four levels of phosphorus (0, 20, 40, 60 kg/ha) were combined in a 4x4 factorial design in a randomized complete block design with three replications. Collected data on growth and yield parameters were analyzed using SAS 9.2 software. The application of 165 kg of nitrogen per hectare significantly increased 6 days to flowering, 13 days to physiological maturity, aboveground biomass 36%, belowground biomass 29.79%, total tuber yield 60.33%, number of marketable tuber increased by 56.36.The percentage and number of the total tuber is 31.7% and the average tuber weight is 22.43%. However, N did not affect days to emergence, number of unmarketable tubers. The application of phosphorus increased the days to flowering by 3 days, the biomass on the ground and underground by 8.78 and 61.4%, respectively, and the number of salable tubers by 19.72%. The interaction effect of 165 kg of nitrogen and 60 kg of phosphorus increased the salable tuber yield (36 tons/ha) by 122% compared to the control (16.2 tons/ha). The results of this study confirmed that potato yield and yield components are affected by nitrogen and phosphorus rates. From this study, it can beconcluded that higher amounts of nitrogen (165 kg/ha) and phosphorus (60 kg/ha) can be used for optimal production, of Sante potato variety in Jiroft.

Growth Parameters;Nitrogen; Phosphorous; Sante potato variety; Yield Parameters

"Evaluation the effects of multiple doses of phosphorus and nitrogen on potato tuber performance (Solanumtuberosum L.) in Jiroft-Iran", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 10, page no.f217-f223, October-2023, Available :http://www.jetir.org/papers/JETIR2310427.pdf

"Evaluation the effects of multiple doses of phosphorus and nitrogen on potato tuber performance (Solanumtuberosum L.) in Jiroft-Iran", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 10, page no. ppf217-f223, October-2023, Available at : http://www.jetir.org/papers/JETIR2310427.pdf