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Effects of Intra-row Spacing and Nitrogen Fertilizer Rates on Growth, and Yield of Onion (Allium cepa L.) Under Irrigation in Mecha District of Amhara, Ethiopia

The productivity of onion is low due to many factors such as poor soil fertility, under or above optimum plant population. Moreover, farmers are complaining that the present recommended 10 cm intra row spacing produces large sized bulbs, which do not preferred by consumers for home consumptions. Therefore, the present study was initiated with the objective of investigating the effects of intra row- spacing and nitrogen fertilizer rates on growth and yield of onion. The treatments consisted of four rates of Nitrogen fertilizer rate (0, 41, 82, 123 kg ha-1 N) and three-intra row spacing (4, 7. 10 cm). The experiment was laid down in Randomized Complete Block Design (RCBD) with factorial arrangement was used three replications. Date on growth, yield and yield components of onion were collected and subjected to ANOVA using SAS (version 9.0) software. The higher significant difference for plant height (60.53cm), leaves number per plant (14.10cm), leaves length (60.90cm), day to maturity (115 days) and bulb weight (96.05 g) were recorded from onion plants supplied with 82 kg ha-1 N and 123 kg ha-1 N both combined with 10 cm of intra row spacing. The highest marketable bulb yield (43.80 t/ha) was recorded from treatment combination of 82 kg ha-1 N and 4 cm of intra row spacing. Onion plants without nitrogen fertilizer application and narrow intra row spacing were inferior in almost all growth and yield components. Based on the results of the present study, the combination of 82 kg ha-1 N and 4 cm of intra row spacing can be recommended for production of onion Since the results are limited to one season and location, it is advised to repeat the experiment in different area and season for forceful recommendation.

Irrigation, Nitrogen, Onion, Parameters and Spacing

APA Style

Dasash Atalay, Melkamu Alemayehu, Dessalegn Ayana. (2022). Effects of Intra-row Spacing and Nitrogen Fertilizer Rates on Growth, and Yield of Onion (Allium cepa L.) Under Irrigation in Mecha District of Amhara, Ethiopia. International Journal of Bioorganic Chemistry, 7(1), 17-22. https://doi.org/10.11648/j.ijbc.20220701.13

ACS Style

Dasash Atalay; Melkamu Alemayehu; Dessalegn Ayana. Effects of Intra-row Spacing and Nitrogen Fertilizer Rates on Growth, and Yield of Onion (Allium cepa L.) Under Irrigation in Mecha District of Amhara, Ethiopia. Int. J. Bioorg. Chem. 2022, 7(1), 17-22. doi: 10.11648/j.ijbc.20220701.13

AMA Style

Dasash Atalay, Melkamu Alemayehu, Dessalegn Ayana. Effects of Intra-row Spacing and Nitrogen Fertilizer Rates on Growth, and Yield of Onion (Allium cepa L.) Under Irrigation in Mecha District of Amhara, Ethiopia. Int J Bioorg Chem. 2022;7(1):17-22. doi: 10.11648/j.ijbc.20220701.13

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This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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