2026-06-27http://hdl.handle.net/123456789/130977application/pdfOpen AccessfertilizerspotatoesirrigationEffects of NPS Fertilizer Rate and Irrigation Frequency Determination Method on the Growth and Tuber Yield of Potato (Solanum tuberosum L.) In Koga Irrigation Scheme, West Gojjam, North Western EthiopiaThesis