African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6543

Table of Content: July, 2021; 17(7)

July 2021

Implementation of COVID-19 control measures: Effect on fertilizer supply and soil fertility in Africa

The unexpected outbreak of novel COVID-19 in late 2019 and continual spread across the world has disrupted the agricultural value chain. The World Health Organization (WHO) prescribed border closure, lockdown, social distancing, wearing a mask, and handwashing to combat the pandemic. These control measures, especially the closure of borders, have affected the importation and supply of fertilizer for crop production. The...

Author(s): Emmanuel Hanyabui, Samuel Obeng Apori, Selorm Akaba and Joseph Ssekandi

July 2021

Phosphorus management issues for crop production: A review

Phosphorus (P) is an essential element for plant growth. On account of its low solubility in soil, P is often a limiting factor to optimum crop growth and therefore P fertilisation is an important aspect of nutrient management plans to ensure profitable and sustainable crop production. Plant P availability is controlled by sorption, desorption and precipitation of P from P released during weathering of P minerals and...

Author(s): T. Mardamootoo, C. C. du Preez and J. H. Barnard

July 2021

Determinants of farmers’ adoption decision of improved crop varieties in Ethiopia: Systematic review

Determinants of adoption decision have been studied by many researchers for a long time. This systematic review applied weight analysis method to summarize and synthesize the most common factors from twenty-one studies that determine the farmers’ adoption decision of improved crop varieties in a regular pattern in Ethiopia. Hence, the result revealed that factors like Access to credit, Participation in social...

Author(s): Abdurehman Mektel and Abdi Mohammed  

July 2021

Contribution of multi-nutritional blocks and treatment of roughage for the resilience of beneficiary of rural households in Niger

The aim of this study was to assess the effect of using multi-nutritional blocks and roughage processing as alternatives for the resilience of beneficiary households in the study area. The study was conducted in the rural communes of Sakoira and Kourtheye (Department of Tillaberi) through a survey of 32 producers of multi-nutritional blocks and treated straw. The structure by age class reveals, among the Peulh ethnic...

Author(s): Harouna ABDOU, Ibrahim ADAMOU KARIMOU, Abdoulkadri LAOUALI and Issa NOMAOU SANI

July 2021

From yield to application: Nutrient requirement of maize (Zea maize) in Southeastern and Southwestern Ethiopia at zonal level

Optimal nutrient application is required for sustainable crop production and farm profitability in Ethiopian smallholder farmer. In this study, N, P and K requirement of maize was estimated for the current and future maize production levels in East Shewa and Jimma zones of Ethiopia. Current yield was assessed from Spatial Production Allocation Model (SPAM) database and yield responses and agronomic N, P and K use...

Author(s): Workneh Bekere

July 2021

Agricultural zoning and recommendations for the seeding of wheat (Triticum species) in the Central-Southern Mesoregion of Parana State in Brazil

Wheat is one of the most cultivated cereals and is essential for human and animal feeding. Since it is a sensible species to the meteorologic conditions, the climate changes can alter all its cultivation areas and practices known in the present agriculture. This paper aims to make the zoning of climatic risk for agriculture for the wheat crop (Triticum species) and recommend the planting window for the central-southern...

Author(s): Ana Paula Ferreira Dominoni⊃, Nathan Felipe da Silva Caldana⊃, Leonardo Rodrigues⊃, Bruno Wismeck Negrão⊃, Vitor Rampazzo Favoretto⊃, Victor Ricardo Bodnar⊃ and Marcelo Augusto de Aguiar e Silva⊃

July 2021

Profitability analysis of smallholder cocoa production in South West Region of Cameroon

Over the years, cocoa production in Cameroon has served as a source of employment for many smallholder farmers. However, aging trees amongst other factors is a limiting factor in the productivity of cocoa. The study compared the economic performances of different crop ages of smallholder cocoa production using primary data obtained by means of semi-structured questionnaires. Multi-stage random sampling was adopted to...

Author(s): Norbert N. Ngwang and Majory O. Meliko

July 2021

Impact of row spacing on soybean morphological parameters and yield

The variable distribution of soybean seeds in rows can reduce the final stand and compromise grain yield. This article assesses the impact of seed distribution on the morphological characteristics of some plants and on the final yield of soybeans. The study was carried out in the experimental area of ??the federal university of Santa Maria, Frederico Westphalen campus, in the state of rio grande do sul, Brazil, in a...

Author(s): Claudir José Basso, Willian Bizarro Pertile, Mateus Junior Rodrigues Sangiovo, Fernanda Marcolan de Souza and Diecson Ruy Orsolin da Silva

July 2021

Antioxidant activity of Capsicum frutescens and its effect on sensory and carcass traits of local chickens

This study determined the antioxidant activity of Capsicum frutescens powder and its effect on sensory and carcass characteristics of local chickens fed with either cotton seed cake or sunflower seed diets for thirty seven days. The birds were randomly assigned to four dietary treatments (0, 1.1, 2.2 and 4.4%) of C. frutescens powder. For cotton seed cake diets, 15 birds were replicated thrice per treatment whereas the...

Author(s): Sebulime Peregrine, Ocaido Michael and Okello Samuel

July 2021

Growth efficiency and profitability indices of African catfish (Clarias gariepinus) fingerlings fed with different levels of Adansonia digitata (Baobab) seed meal

The effects of diet with different inclusion levels of baobab seed meal inclusions on the growth and gross margin analysis of Clarias gaiepinus fingerlings was evaluated under a controlled laboratory condition. Five inclusion levels of Baobab Seed Meal (BSM) to replace soya bean meal were studied at 0, 5, 10, 15 and 20% dietary protein. The experimental diets were uniform by targeting 40% crude protein with energy level...

Author(s): Ajibade Akinniyi Oyetunji, Adeosun Olubunmi, Sule Okanlawon Sakiru, Adedokun Mathew Adewale and Adesina Babatunde Taiwo

July 2021

Coinoculation of rhizobia and mycorrhiza in cowpea beans (Vigna unguiculata (L.) Walp) in Calixto GarcĂ­a Municipality, Cuba

The research goal is to evaluate the rhizobia and mycorrhiza application on Cowpea bean (Vigna unguiculata L) cv. Carita Blanco growth. The experiments were developed at Calixto García municipality, Cuba. It was conducted from April to June 2020, on brown Sialitic soil without carbonate. This design was a random block with three treatments (Control, Rhizobium and Rhizobium + Mycorrhizas). It entailed indicators...

Author(s): Sebastián Zayas Infante, Maura Isabel Rodríguez Palma, Heriberto Vargas Rodríguez, María Caridad Nápoles Garcia, Irina Reyes Martínez, Reynaldo Guzmán Paez  and Carmelo Damián Agüero Pintado

July 2021

Study on the optimum nutrient solution concentration for the growth of Mint (Mentha genus)

Mint (Mentha genus) is an herbaceous herb that is fragrant useful for centuries with spices and medicinal herbs. Study on optimum nutrient solution sufficient to meet the plants’ demands regarding soilless culture of mint would be helpful for its application in plant factory, but was less reported. In the current study, 0.5 fold (×), 0.75×, 1.0× and 1.25× concentrations of Yamazaki formula...

Author(s): Wang Tingqin, Zhao Yixin, Xu Zhenyu, Wen Junlang and Su Xiuxiu

July 2021

Household welfare status and crop insurance uptake by cocoa farmers in Ondo State, Nigeria

This study examined the effect of welfare status on insurance uptake. The reason for the study is that formal insurance is still underutilized amongst farmers in Nigeria despite the incessant risk and uncertainties faced in agriculture. For this study, 200 households were randomly drawn from four local government areas of Ondo state through a 2-stage sampling technique. The analytical tools used were descriptive...

Author(s): Balogun T. Olabanji, Olajide O. Adeola and Thomas A. Kehinde

July 2021

Effects of different light exposure regimes on pre-sprouting and yield performance on potato (Solanum tuberosum L.) seed in Central Rift, Kenya

Author(s): Moletsane Malekhooa S., Kimurto Paul K. and Oyoo Maurice E.

July 2021

Use of positive selection technique to manage yam viruses in seed yam production by Ghanaian farmers

Positive selection technique (PST) involves physical examination of plants at vegetative stage for viral disease symptoms and using tubers from apparently symptomless plants as planting materials in seed yam production. This study determined PST use among farmers in Atebubu-Amantin and Ejura-Sekyedumase Municipalities of Ghana. Viral diseases were observed on 63 PST and 63 non-PST farms within these Municipalities. PST...

Author(s): A. K. Aidoo, R. T. Awuah, K. Osei, J. N. L. Lamptey, M. D. Quain, M. B. Mochiah, J. V. K. Afun and A. Oppong

July 2021

Phenotypic performance and response to selection for body weight gains of Black Bengal goat in a community breeding program

Black Bengal goat is a potential animal genetic resource of Bangladesh. The aim of this study was to investigate the genetic improvement of growth rate (GR) in-situ through a community based breeding program under a low input production system. Data on a total of 451 individuals from 2009 to 2015 in three generations were taken. In the community, two breeding strategies (BS); mating among superior bucks and does (BS1)...

Author(s): A. Akhtar, M. A. Hoque, A. K. F. H. Bhuiyan, M. R. Amin and M. A. Habib