Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia

Abstract Onion is important in the daily Ethiopian diet though the average yield obtained by farmers is very low. This is attributed to a number of constraints among which are poor agronomic practices. Therefore, field experiment was conducted at Tahtay Koraro district to study the effect of nitroge...

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Autores principales:	Kiros Gebretsadik, Nigussie Dechassa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/797c5642f3e044d79caa426c498db0ef
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spelling	oai:doaj.org-article:797c5642f3e044d79caa426c498db0ef2021-12-02T15:07:52ZResponse of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia10.1038/s41598-018-27762-x2045-2322https://doaj.org/article/797c5642f3e044d79caa426c498db0ef2018-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-27762-xhttps://doaj.org/toc/2045-2322Abstract Onion is important in the daily Ethiopian diet though the average yield obtained by farmers is very low. This is attributed to a number of constraints among which are poor agronomic practices. Therefore, field experiment was conducted at Tahtay Koraro district to study the effect of nitrogen fertilizer and intra-row spacing on growth and yield of onion. The treatments consisted of a factorial combination of four rates of nitrogen (0, 50, 100 and 150 kg N ha−1) and four intra- row spacings (4, 6, 8, and 10 cm). Bombay Red was the variety of onion used in the experiment. The experiment was laid out as RCBD with three replications. The analysis of variance revealed that N and intra-row spacing were significant. Both N and intra-row spacing significantly affected percentage of Bolting plants, leaf length, bulb diameter, and marketable yield. 100 kg N ha−1 and a population of 833,300 plants ha−1 was found to be the optimum rate to obtain higher marketable bulb yield of 26.72 t ha−1 and economically attractive benefits. Therefore, Bombay red variety could be planted at an optimum spacing of 6 cm × 20 cm or 833,300 plant population density ha−1 in Tahtay koraro district of northern Ethiopia.Kiros GebretsadikNigussie DechassaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kiros Gebretsadik Nigussie Dechassa Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia
description	Abstract Onion is important in the daily Ethiopian diet though the average yield obtained by farmers is very low. This is attributed to a number of constraints among which are poor agronomic practices. Therefore, field experiment was conducted at Tahtay Koraro district to study the effect of nitrogen fertilizer and intra-row spacing on growth and yield of onion. The treatments consisted of a factorial combination of four rates of nitrogen (0, 50, 100 and 150 kg N ha−1) and four intra- row spacings (4, 6, 8, and 10 cm). Bombay Red was the variety of onion used in the experiment. The experiment was laid out as RCBD with three replications. The analysis of variance revealed that N and intra-row spacing were significant. Both N and intra-row spacing significantly affected percentage of Bolting plants, leaf length, bulb diameter, and marketable yield. 100 kg N ha−1 and a population of 833,300 plants ha−1 was found to be the optimum rate to obtain higher marketable bulb yield of 26.72 t ha−1 and economically attractive benefits. Therefore, Bombay red variety could be planted at an optimum spacing of 6 cm × 20 cm or 833,300 plant population density ha−1 in Tahtay koraro district of northern Ethiopia.
format	article
author	Kiros Gebretsadik Nigussie Dechassa
author_facet	Kiros Gebretsadik Nigussie Dechassa
author_sort	Kiros Gebretsadik
title	Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia
title_short	Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia
title_full	Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia
title_fullStr	Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia
title_full_unstemmed	Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia
title_sort	response of onion (allium cepa l.) to nitrogen fertilizer rates and spacing under rain fed condition at tahtay koraro, ethiopia
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/797c5642f3e044d79caa426c498db0ef
work_keys_str_mv	AT kirosgebretsadik responseofonionalliumcepaltonitrogenfertilizerratesandspacingunderrainfedconditionattahtaykoraroethiopia AT nigussiedechassa responseofonionalliumcepaltonitrogenfertilizerratesandspacingunderrainfedconditionattahtaykoraroethiopia
_version_	1718388395768545280

Response of Onion (Allium cepa L.) to nitrogen fertilizer rates and spacing under rain fed condition at Tahtay Koraro, Ethiopia

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