African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6359

Full Length Research Paper

Evaluation of blended fertilizer on growth performance and yield of onion (Allium cepa L.) at irrigated conditions Tselemti District North Western Tigray, Ethiopia

Solomon Mebrahtom
  • Solomon Mebrahtom
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Kinfe Tekulu
  • Kinfe Tekulu
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Tewolde Berhe
  • Tewolde Berhe
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Tsadik Tadele
  • Tsadik Tadele
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Weldegebreal Gebrehiwot
  • Weldegebreal Gebrehiwot
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Gebresemaeti Kahsu
  • Gebresemaeti Kahsu
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Samrawit Mebrahtu
  • Samrawit Mebrahtu
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar
Goitom Aregawi
  • Goitom Aregawi
  • Tigray Agricultural Research Institute, Shire Soil Research Centre, P. O. Box 40, Shire, Ethiopia.
  • Google Scholar


  •  Received: 04 May 2020
  •  Accepted: 07 July 2020
  •  Published: 30 September 2020

Abstract

Onion has economically important crop in the study area. However, its low production is due to poor soil fertility management. Thus, the present study was initiated to determine the optimal rate of blended fertilizer required for onion production. A field experiment was conducted for two consecutive years during 2018 and 2019 at farmer's field Tselemti district, the experiment had 8 treatments arranged in a randomized complete block design with three replications. The treatments were 7 levels of NPSB (25, 50, 100, 150, 200, 250 and 300 kg  ha-1), recommended rate of N and P (105 N and 92 P2O5 kg ha-1), and a basal application of top dress N at rate of 69 kg ha-1 were applied for except the plot received recommended NP. The study results showed the application of blended fertilizer not significantly affected most of the crop parameters tested. However, they had a numerical difference among the treatments; since the highest (41157 kg ha-1) and lowest (32650 kg ha-1) marketable yields were obtained from a plot treated by 250 kg ha-1 plus a basal application of top dress N at rate of 69 kg ha-1 and from plots that received 50 kg ha-1 plus a basal application of top dress N at rate of 69 kg ha-1, respectively. Therefore, experiment for onion production should carry out on omitting trial of blended fertilizer in the study area. 

Key words: Blended fertilizer, onion, omitting trail, recommended NP.