Evaluating the Role of Nitrogen and Phosphorous on the Growth Performance of Garlic (Allium sativum L.)

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Garlic is a potential vegetable crop in Ethiopia in general and in Jimma area in particular. However, there is no much information on the agronomic practice especially on the role of nutrient application in improving the growth and development of Garlic. This study was conducted to elucidate the role of nitrogen and phosphorous nutrients on the growth performance of local garlic variety called Minjar Nech Shinkurt. Four nitrogen doses (0, 50, 100 and 120 kg N ha-1) and four phosphorus doses in the form of P2O5 (0, 60, 120 and 180 kg P2O5 ha-1) used to create different level of growth parameters. The plots were arranged in Randomized Complete Block Design (RCBD) with three replications. Growth parameters such as plant height, leaf number per plant and leaf length were recorded and analyzed by using JMP statistical software. The results of the study showed that application of 100 kg N ha-1 + 120 kg P2O5 ha-1and 100 kg N ha-1 + 130 kg P2O5 ha-1 significantly increased the growth of garlic than other treatments. The application rate of 100 kg N ha-1 + 120 kg P2O5 ha-1 significantly enhanced plant height. This study further confirms the role of nitrogen and phosphorus fertilizers in increasing growth in garlic production. From the result of the study, application rate of 100 kg N ha-1 + 120 kg P2O5 ha-1 may be recommended for increasing growth of garlic. Further study is being conducted to compare the role of chicken manure, animal and green manure with the commercial chemical fertilizers on the growth performance and yield of garlic.

Betewulign Eshetu Adem
Solomon Tulu Tadesse
Asian Journal of Agricultural Research