Jornal de Ciências Agrícolas e Pesquisa de Alimentos
Acesso livre

Abstrato

Response of Potato (Solanum Tuberosum L.) to Nitrogen and Phosphorus Fertilizer Rates on Growth and Yield Components at Debark, Northern Highlands of Ethiopia.

Tamrat Worku, Melkamu Adane, Baye Ayalew, and Ayalew Addis

Potato (Solanum tuberosum L.) belongs to the family Solanaceae and genus Solanum. It is native to South America and introduced to Ethiopia in 1859 by a German Botanist called Schimper. In Ethiopia, about 70% of cultivated land is suitable for potato production. The Lowest soil fertility is the major constraints to potato production. Farmers should tackle this problem through the application of inorganic fertilizes, which amend the soil productivity. The application of an appropriate amount of NP fertilizer is a major factor in potato production. A field experiment was conducted in 2018 and 2019 main cropping season to investigate the optimum rate of NP on tuber yield of potato in the Amhara Region, North Gondar at highland Debark districts on farmer’s field respectively. The treatments were four levels of nitrogen (0, 46, 92, 138 kg ha-1) and three levels of phosphorus (0, 46, 69 kg ha-1) were combined in factorial arrangements in randomized complete block design with three replications. The founding of the study showed the application of 92kg N ha-1 is recommended at Debark and similar agroecology. Even if application P does not affect potato tuber yield 23 kg ha-1 phosphorus fertilizer should be applied for soil fertility maintenance.