African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6559

Table of Content: 25 January, 2018; 13(4)

January 2018

Development of a crop growth subroutine for the Watershed Resources Management (WRM) model

Vegetation has a marked effect on runoff and soil moisture and plays an important the hydrologic cycle. The Watershed Resources Management (WRM) model, a process-based, continuous, distributed parameter simulation model developed for hydrologic and soil erosion studies at the watershed scale lack a crop growth component. As such, this model assumes a constant parameter values for vegetation and hydraulic parameters...

Author(s): Ogbu K. N., Mbajiorgu C. C., Ugwuoke K. and Ndulue E. L.

January 2018

Effect of planting date on tepary bean yield and yield components sown in Southern Botswana

Tepary bean is a crop that is slowly gaining momentum into the cropping system of Botswana. A study was conducted to determine the effect of planting date on yield and yield components of tepary bean and identify the optimum sowing of the crop. A rain-fed experiment was conducted for two seasons (2012 to 2014), using a randomized complete block design replicated three times in a split plot with three sowing dates in...

Author(s): Odireleng O. Molosiwa and Sylvia B. Kgokong

January 2018

Soybean hull and/or white oat grain for steers finished in feedlot

The aim of this study is to evaluate the performance of feedlot finished steers receiving grain oat and/or soybean hull in their diet. Thirty six Nellore crossbred with Charolais steers, that received diet with concentrate ratio of 50:50 in all diets independently of the treatment, with sorghum silage as forage and concentrate according to the proposed treatment: soybean hull, oat grain and a mixed concentrate with...

Author(s): Guilherme Joner, Dari Celestino Alves Filho, Andrei Retamoso Mayer, Ana Paula Machado Martini, Gilmar dos Santos Cardoso, Camille Carijo Domingues, Mauren Burin da Silva, Patrícia Machado Martini, Joziane Michelon Cocco and Ivan Luiz Brondani

January 2018

Rhizome development in Sorghum bicolor × Sorghum halepense families in the tropical ecosystem of Uganda

Many landraces and improved cultivars of sorghum (Sorghum bicolor) grown in Uganda have late maturity and are susceptible to several biotic and abiotic stresses. Introgression of the rhizomatous trait from perennial sorghum (Sorghum halepense) could improve stress tolerance. However, phenotypic characterization of exotic perennial sorghum germplasm under Ugandan environmental conditions is essential to select desirable...

Author(s): Shakirah Nakasagga, Moses Biruma, Geoffrey Tusiime, Pheonah Nabukalu and Stan Cox

January 2018

Spatial econometric analysis of the main agricultural commodities produced in Central-West Region, Brazil

The aim of this paper is to present novel variables in the Brazilian Central-West Region to evaluate the spatial dependence of the Gross Domestic Product of agriculture and livestock (GDPagri) and the Gross Value of Production (GVP) on the main agricultural and livestock commodities in order to identify clusters of high and low spatial correlations. Data on the municipalities of Mato Grosso do Sul State (MS) between...

Author(s): Alexander Bruno Pegorare, Paula Martin de Moraes, Reginaldo Brito da Costa, Urbano Gomes Pinto de Abreu, Dany Rafael Fonseca Mendes, Tito Belchior Silva Moreira, George Henrique de Moura Cunha and Michel Constantino

January 2018

Conilon plant growth response to sources of organic matter

In the production of quality plant, it is important to consider the growing substrate since it provides plants with very important physical and chemical characteristics of the soil. Many organic materials of vegetal or animal origin have been used in mixtures of substrates for plant production. This study evaluated the development, quality and physiological components of Conilon coffee plants as a function of substrates...

Author(s): Waylson Zancanella Quartezani, Ramon Amaro de Sales, Talita Aparecida Pletsch, Sávio da Silva Berilli, Adriel Lima Nascimento, Leonardo Raasch Hell, Euzileni Mantoanelli, Ana Paula Candido Gabriel Berilli, Ricardo Tobias Plotegher da Silva and Raniele Toso

January 2018

Demographic and socio-economic characteristics of cassava farmers influencing output levels in the Savannah Zone of Northern Ghana

The research studied the effects of demographic and socio-economic characteristics of cassava farmers on output levels in the Savannah Zone of Northern Ghana. One hundred and fifty cassava farmers were sampled randomly. The data were collected through a structured questionnaire from respondents. The farmers were drawn from three regions that fall under the Savannah Zone. Six districts were purposively selected from the...

Author(s): Mohammed M. Abdul-kareem and Mehmet A. Åžahinli

January 2018

Effect of application of flowering inhibitor on sweet sorghum

Studies on sweet sorghum have been conducted in countries like Brazil, USA, India and Argentina to complement ethanol production. In Brazil, it is cultivated in areas for sugarcane renovation, and can be used in sugarcane industries. However, the use of chemical flowering inhibitor can increase sucrose in stalks, resulting in higher production. Therefore, the goal of the present study is to evaluate the effect of Etefom...

Author(s): Eduardo do Valle Lozano, Letícia Murador Blanco, Giovanni Uema Alcantara, Lucas Conegundes Nogueira, Sandro Ciaramello and Gustavo Henrique Gravatim Costa

January 2018

Maize leaf area estimation in different growth stages based on allometric descriptors

The literature points out the need for leaf area (LA) calibration models that are suitable for specific varieties (variety-specific). These models should be capable of coping with different crop conditions, growth stages, and agronomic practices. The objective of the current study was to develop a model for estimating the LA of ​​maize (Zea mays L.), considering the entire growth cycle, based on non-destructive...

Author(s): Sosdito Estevão Mananze,, Isabel Pôças, and Mario Cunha,  

January 2018

Genotype × environment interaction and yield stability of Arabica coffee (Coffea arabica L.) genotypes

Lack of suitable varieties that exhibit stable yield performances across wide ranges of environments is the major factor among several production constraints contributing to low productivity of Arabica coffee in Ethiopia. Eleven advanced Limmu coffee genotypes were evaluated in eight environments (four locations over two years) to determine the existence of GEI and yield stability performances. The experiment was laid...

Author(s): Lemi Beksisa, Sentayew Alamerew, Ashenafi Ayano and Gerba Daba