African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6688

Full Length Research Paper

Inter row spacing and Np fertilizer application rates effect on economics, growth, yield and yield component of mung bean (Vigna radiata L) cultivation at Mirab Abaya, Southern Ethiopia

Sisay Samuel Gella
  • Sisay Samuel Gella
  • College of Agricultural Sciences, Arba Minch University, P. O. Box 2577, Arba Minch, Ethiopia.
  • Google Scholar
Zenebe Mekonnen Adare
  • Zenebe Mekonnen Adare
  • College of Agricultural Sciences, Arba Minch University, P. O. Box 2577, Arba Minch, Ethiopia.
  • Google Scholar


  •  Received: 30 July 2021
  •  Accepted: 14 September 2021
  •  Published: 31 December 2021

Abstract

Mung bean, the most important and short duration pulse crop, grown for grain from tropical to sub-tropical climates is low in productivity and lacks recommended inter-row spacing and NP fertilizer rate for various agro-ecologies. A study was conducted to determine inter-row spacing and NP fertilizer rates for yield and yield components of mung bean at Mirab Abaya. The experiment consisted of three inter-row spacing (15 × 10, 25×10 and 35× 10 cm) and five levels of combined NP fertilizer rates (control; 20.5:23, 41:46, 61.5: 69 and 82:92 NP kg ha-1). The treatments were laid out in a factorial experiment in a randomized completely block design with three replications. The result indicated that significantly (p < 0.05)  maximum grain yield (2346.67 kg ha-1), number of grains per pod (10.7), biological yield (8094 kg ha-1), straw yield (5747.4 kg ha-1) was attained at an inter-row spacing of 25 × 10 cm and significantly maximum grain yield (2511.1 kg ha-1), number of grains per pod (12), 100 seed weight (4.34 g), biological yield (8897.8 kg ha-1) and straw yield (6387 kg ha-1) was recorded when applying combined NP fertilizer rate at 61.5:69 kg ha-1. According to the partial budget analysis, a high net benefit (birr 53745.75) was obtained at an NP level of 61.5:69 kg ha-1. Therefore, a combined NP fertilizer application rate of 61.5:69 kg ha-1 accompanied with an inter-row spacing of 25 × 10 cm is recommended at Mirab Abaya and related agro-ecologies for increasing Mung bean grain yield.

Key words: Agroecologies, combined NP, inter-row, Mung bean.