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Open QR ImageArega Amdie; Solomon Teshoma; Miressa Mitiku
Greener Journal of Agricultural Sciences | Greener Journals | 2025
Paper ID: RQL-PAPER-2026-000041 | DOI: 10.15580/gjas.2025.4.122225203 | Views: 12
Publication Date: 2025-12-31 | Volume: 15 | Issue: 4 | Pages: 131-141
Type: Journal article | Discipline: Agriculture | Subject Area: - | Language: English
DOI: 10.15580/gjas.2025.4.122225203
Potato is a key food security and cash crop in the Guji zone, facing challenges from climate change, poor agronomic practices, and soil fertility depletion. A field experiment was implemented to determine optimal NPSB fertilizer rates to enhance potato production. The treatments comprised of seven rates of NPSB (0, 50, 100, 150, 200, 250 and 300 kg ha-1) combined with a fixed nitrogen application 46 kg of N ha-1 , using the Bubu variety in a randomized complete block design. Results indicated that NPSB significantly affected flowering time, maturity, plant height, and tuber yields, with 250 kg ha-1 yielding the highest marketable tuber yield (37.58 t/ha) and net benefit (1,002,560 ETB/ha). The application of 250 kg NPSB ha-1 is thus recommended for economic viability in the region.
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