African Journal of
Agricultural Research

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

AJAR Articles

October 2018

Launching a Startup Business in the Agribusiness Market: The Process of becoming a Successful Entrepreneur

Last December 2017, Prof. Marisa del Pozo Lite (Complutense University of Madrid) was invited to give a session as member of the International Advisory Board of CEIBS-Africa to a group of 40 African Business Women in the Agribusiness Market – as part of the Alumni Reunion Agenda of CEIBS-Africa Program held at Harvard University in 2017. Getting a venture underway in the agribusiness market is often easier...

Author(s): Maria Luisa del Pozo Lite

October 2018

Effect of soil compaction on aerial and root growth of Erythrina velutina Willd.

Compaction can be a triggering factor for a process of soil degradation and formation of degraded areas. Understanding plant development in soils compacted is of fundamental importance, since they allow to identify species able to resist the limiting condition of the compaction, being able to be indicated to recover degraded areas that have compacted soils as limiting factor. The objective of this study was to evaluate...

Author(s): Luan Henrique Barbosa de Araújo, Gualter Guenter Costa da Silva, Camila Costa da Nóbrega and Ermelinda Maria Mota Oliveira  

October 2018

Application of cow manure and inorganic fertilizer in one season and carryover of effects in sesame on tropical ferruginous soils

The aim of this research was to find whether Sesamum radiatum growth requires cow manure and nitrogen-phosphorus-potassium (NPK) fertilizers. We examined the survey vegetable over two growing seasons on ferruginous soil: from June to December in 2009 (Season 1) and 2010 (Season 2). We used cow manure (0, 20, 30 and 40 t.ha-1) and NPK 10:10:20 (0, 50, 100 and 150 kg.ha-1) during season 1 and no amendments during season 2...

Author(s): D. R. A. Sanya, and  L. G. Amadji,  

October 2018

Impact of companion cropping on incidence and severity of maize ear rots and mycotoxins in Western Kenya

Mycotoxins are harmful to health and mainly arise from ear rots, affecting maize in the field. This work analysed the effect of the cropping system on ear rot and final effect on mycotoxins from four sub-counties (districts) of western Kenya, Butere, Kisumu, Siaya and Vihiga, where plots comprising maize planted either as pure stand or in mixture with legumes, predominantly common bean treated as “Maize...

Author(s): I. A. Mostafa and S. S. Ibrahim

October 2018

Control of broadleave and grass weeds in Saccharum officinarum with the use of pre-emergence herbicides

In order to identify combinations of effective preemergent herbicides for weeds in sugarcane, an experiment was conducted at the Agricultural School of Concepción; Concepción, Paraguay. The experimental model was subdivided plots, with two factors: A1 without herbicide for broadleaf weeds, A2 diuron (dose 3 t ha-1), A3 atrazine (dose 4 kg ha-1), A4 sulfentrazone (dose 1.2 t ha-1) and B1 without herbicide...

Author(s): Amilcar Isidro Servín Niz, Carlos Alberto Mongelós Barrios, Modesto Osmar Da Silva Oviedo, Miguel Angel Florentín Rolón, Oscar Luis Caballero Casuriaga, Florencio David Valdez Ocampo and Javier Ismael Benítez Vergara  

October 2018

Distribution of rainwater by species of caatinga vegetation

This study aimed to estimate the redistribution of rainfall in a Caatinga vegetation fragment of about 50 years in fallow system, in late stage of regeneration. To quantify the throughfall, rainfall collectors were installed in six individuals of the species Croton blanchetianus, Mimosa tenuiflora, Cnidoscolus quercifolius, Aspidosperma pyrifolium and Poincianella bracteosa, totaling 30 rainfall collectors. For the...

Author(s): Ane Cristine Fortes da Silva, Jacob Silva Souto, José Augusto da Silva Santana, Patricia Carneiro Souto and José Adeilson Medeiros do Nascimento  

October 2018

Comparison of Grafting Techniques and their Effects on some Growth Parameters of Ten Elite Cocoa Clones (Theobroma cacao L.)

Cocoa productivity in Côte d’Ivoire has been on a downward trend for the last decades due to many factors key among them being the non-availability of quality planting materials. However, some elite clones developed in the country are available and need to be adopted by farmers. This study was conducted in Soubré, Côte d’Ivoire to evaluate the grafting techniques (top grafting and budding)...

Author(s): Kouassi Koffi Daouda, N’Zi Jean-Claude, Kahia Jane, Diby Lucien, Kouassi Jean-Luc, Bene Kouadio and Kouamé Christophe  

October 2018

Gas exchange and chlorophyll content in tomato grown under different organic fertilizers and biofertilizer doses

The correct management of organic fertilization has been shown as an extremely viable alternative in the production of vegetables, providing high yields concomitant to the reduction of synthetic fertilizers. The improvement of the production can be interpreted by the physiological behavior, favored by the organic fertilization with the supply of nutrients. Thus, an experiment was carried out to evaluate the gas exchange...

Author(s): Jackson de Mesquita Alves, Alex Serafim de Lima, Evandro Franklin de Mesquita, Sebastião de Oliveira Maia Júnior, Rosinaldo de Sousa Ferreira, Francisca Lacerda da Silva and Jessica da Mota Santos  

October 2018

Mechanical harvest methods efficiency and its impacts on quality of narrow row cotton

The large scale cultivation of cotton in the Cerrado areas was made possible by large investments in technology, particularly in mechanized harvesting, which makes the business viable. However, the use of harvesters causes qualitative and quantitative losses to the final product, reducing the profitability of production. This study aimed to evaluate the fiber characteristics of narrow row cotton using harvesting Pro-12...

Author(s): Nayra Fernandes Aguero, Renildo Luiz Mion, Cíntia Michele Baraviera, Myllena Teixeira Martins, William Lima Crisostomo and Carlos Alberto Viliotti  

October 2018

Nutritive value and degradability “in situ” of dry matter elephant grass silages with addition of babassu meal

The goal of this study was to evaluate the nutritive value and the in situ degradability of elephant grass (Pennisetum purpureum Schum) silages with addition of babassu meal (BaM). PVC silos with 0.25 m in diameter and 0.75 m in height were used. It was done by adopting a compression of 550 kg/m3 in a completely randomized design with five repetitions. It was found that increasing linear effect (P< 0.05) on the...

Author(s): Ricardo Alves de Araújo, Rosane Cláudia Rodrigues, Clésio dos Santos Costa, Francisco Naysson Sousa Santos, Carlos Magno Lima Galvão, Francivaldo Oliveira Costa, Ivone Rodrigues da Silva and Sanayra da Silva Mendes    

October 2018

A review of the evaluation of irrigation practice in Nigeria: Past, present and future prospects

Irrigation practice across the world is vital to successful green revolution all year round to achieving sustainable development goals in food security, socio-economic and rural development. However, irrigation practice in Nigeria has not achieved the set goals despite the huge investment involved. Moreover, the level of investment and abundant water resources ought to have expedited the goals of food self-sufficiency...

Author(s): Bashir Adelodun and Kyung-Sook Choi  

October 2018

Corynespora leaf fall of Hevea brasilensis: Challenges and prospect

Hevea brasiliensis is the major source of natural rubber. Natural rubber being a unique biopolymer of strategic importance needs to be continuously well managed and protected against biotic damages. Many rubber producing countries include South East Asia, Africa and Latin America among others. Corynespora leaf fall caused by Corynespora cassiicola is currently considered as the most destructive leaf disease of Hevea...

Author(s): Umoh Florence and Fashoranti Ebenezer L.  

October 2018

Occurrence of plant bacterial diseases in Jordan

Different studies were done in order to investigate the occurrence of bacterial diseases on different crops grown in Jordan during different growing seasons. Surveys were made and different bacterial diseases have been recorded based on symptoms and pathogenic nature. Morphological characters, biochemical tests and PCR detections were employed in order to detect and identify the causal agents of different inspected...

Author(s): Hamed Khlaif, Ibtihal Abu-Obeid and Bilal Werikat

October 2018

Management of Dinoderus porcellus L. (Coleoptera: Bostrichidae) infesting yam chips using varietal resistance and botanical powders of three medicinal plants

In Benin, stored yam chips are severely attacked by Dinoderus porcellus Lesne which causes important losses. The use of medicinal plants combined with the insect-resistant yam chips can be an efficient alternative of chemical insecticides for yam chips protection. This study aims to evaluate an integrated pest management of D. porcellus using combined effects of resistant yam chips (Boniwouré, Gaboubaba,...

Author(s): Loko Yêyinou Laura Estelle, Gnaho Annick Christelle, Toffa Joelle, Orobiyi Azize, Dansi Alexandre and Tamò Manuele  

October 2018

The Production and prediction of major chinese agricultural fruits using an econometric analysis and machine learning technique

This paper investigates and explores the relationship between agricultural gross domestic product (AGDP) and major fruit output: apple, citrus, pears, grapes and bananas in China. The ordinary least square (OLS) method and the augmented Dickey-Fuller (ADF) test were used to analyze the data, and the Johansen co-integration test was used to interpret the results. The machine learning technique was used to examine and to...

Author(s): Abdul Rehman, Zhang Deyuan and Luan Jingdong  

October 2018

Prevalence, cultural and pathogenic characterization of Zymoseptoria tritici, agent of wheat septoria leaf blotch, in Algeria

Wheat is the 2nd most important culture in the world.  Septoria leaf blotch is one of the most important wheat diseases. It is caused by Mycosphaerella graminicola (an: Zymoseptoria tritici). The aim of this study is to evaluate the presence and the importance of this disease in Algeria. A collection of 625 isolates was made through the years (2010, 2011, and 2013). Isolates were collected from the Algerian zones...

Author(s): Wahiba HARRAT, and Zouaoui BOUZNAD  

October 2018

Sandy soil fertility restoration and crops yields after conversion of long term Acacia senegal planted fallows in North Cameroon

Tree planted fallow is an agroforestry system that may restore degraded soils and protect them from erosion. In this study, sandy soils properties of Acacia senegal planted fallows (AF) were assessed and compared to those from the continuous cropped system (CC) in 3 sites from Northern Cameroon in order to determine its suitability to restore soil fertility and sustain crop productivity. Soil samples were collected from...

Author(s): Simon Djakba Basga, Oumarou Palou Madi, Jules Balna, Fanta Chimène Abib, Désiré Tsozué and Aboubakar Njiemoun  

October 2018

Intra- and inter-specific interference between slender amaranth and red pepper

Competition interferes with the growth and development of plants, whether of the same species or not. The aim of this work is to evaluate the intra-specific interference of slender amaranth plants (Amaranthus viridis) at different densities and distances, and in an inter-specific interaction with red pepper (Capsicum baccatum var. pendulum). The experiment was conducted in four replications and in a randomized complete...

Author(s): Izabela Orzari, Matheus Falcai Barbasso, Bruno Vinícius Rodrigues Silva, Isa Marcela Rodrigues Furlini Braga and Pedro Luis da Costa Aguiar Alves  

October 2018

Pasture quality of Panicum maximum cv. Tanzania subjected to different rest periods for milk production

The objective of this study was to evaluate the effect of two defoliation intervals on the morphological characteristics of the experimental group. Chemical composition characteristics of a Tanzania grass pasture (Panicum maximum) and the performance of crossbred cows on intermittent grazing were examined. The digestibility of the dry matter, the digestibility of the organic matter fibrous, the voluntary dry matter...

Author(s): Alberto Chambela Neto, José Fernando Coelho da Silva, Bruno Borges Deminicis, Ismail Ramalho Haddade, Gustavo Haddad Souza Vieira, Leonardo Barros Dobbss and Thiago Lopes Rosado  

October 2018

Coffee growers’ local knowledge on shade tree species in Adola Rede District, Guji Zone, Southern Ethiopia

Farmers have a detailed local knowledge about different tree species which are either retained or planted on their farms. Thus, it is possible to learn from farmers’ observations to enhance understanding of local agro-ecological knowledge. This study aimed to investigate coffee growers’ local knowledge on shade tree species. The study was conducted at Adola Rede District, in Guji Zone, Southern Ethiopia. To...

Author(s): Aschalew Emire and Zebene Asfaw  

September 2018

Impact of shade on morpho-physiological characteristics of coffee plants, their pests and diseases: A review

Traditionally, coffee plant has been considered as a shade demanding species and intolerant of direct sunlight, although it performs well without shade. Still controversy result and recommendation have been reported among investigators in the optimal shading level for coffee growth. This controversy will probably continue endlessly until the effects of shade up on the performance of morphology and physiology of the...

Author(s): Biruk Ayalew  

September 2018

The use of Information Communication and Technology in advancement of African agriculture

Food security in Africa continues to be a big a challenge and one of the key constraints is lack of information on many facets of agricultural research and development to the key sector stakeholders. However, in recent years a wide range of Information Communication and Technology (ICT) platforms and mechanisms have been used across Africa in enhancement of exchange of agricultural related information for increased...

Author(s): Dionysious Kiambi  

September 2018

Use of renewable energy resources in agriculture the case of Turkey

The rapid growth in the world economy has led to significant increases in energy demand. However, due to the limited formation of fossil fuel reserves such as petroleum, coal and natural gas, and the damage they cause to the environment,it has brought the trend towards renewable energy sources.The main renewable energy sources that can be effectively utilized in agriculture sector are; solar, biomass, geothermal and...

Author(s): Bekir Yelmen  

September 2018

Agronomic effectiveness of water hyacinth-based composts

Because water hyacinth-based compost contains substantial amounts of nitrogen (N), phosphorus (P) and potassium (K) its application can boost crop production. We evaluated the agronomic performance of water hyacinth - based composts using field experiments and five treatments which were; water hyacinth compost made using cattle manure (WH+CM), poultry manure (WH+PM), molasses (WH+MO), water hyacinth alone (WH alone) and...

Author(s): Dennis Beesigamukama, Alice Amoding-Katusabe, John Baptist Tumuhairwe, John Muoma, John M. Maingi, Omwoyo Ombori, Josephine Nakanwagi  and Dative Mukaminega

September 2018

Bioactivity and phenolic composition of extracts of noni (Morinda citrifolia L., Rubiaceae) in tomato moth (Tuta absoluta Meyrick, 1917) (Lepidoptera: Gelechiidae)

We evaluated the bioactivity of Morinda citrifolia L., Rubiaceae on Tuta absoluta (Lepidoptera: Gelechiidae) and quantified the phenolic components. Ethanolic extracts of leaves and fruits were used in five concentrations (0.01, 0.02, 0.03, 0.04 and 0.05 mg / L). The leaves of the plants were immersed in the solution (10 s) and placed in contact with five caterpillars of the same instar in Petri dishes. The caterpillars...

Author(s): Rubens Pessoa de Barros, Ligia Sampaio Reis, João Gomes da Costa, Amanda Cunha Lima, Isabelle Cristina Santos Magalhães, Claudio Galdino da Silva, Aldenir Feitosa dos Santos, Jhonatan David Santos das Neves, Adriana Guimarães Duarte, Gabriela Souto Vieira de Mello, Johnnatan Duarte de Freitas, Jonas dos Santos Sousa and Simone Paes Bastos Franco  

September 2018

Determination of tomato drying conditions with solar energy family type shelf dryer

In this study, working parameters of the system consisting of air heaters and dryer with solar energy of 0.20 m2 with a space of 0.72 m2 and 10 pieces in the cabin were investigated experimentally. Average atmospheric air temperature and relative humidity values during the dry daylight hours were measured at 49°C and 35%, respectively. As a result of the examination of the test results, the atmospheric air...

Author(s): Bekir YELMEN  

September 2018

Effects of seed tuber size on growth and yield performance of potato (Solanum tuberosum L.) varieties under field conditions

Potato (Solanum tuberosum L.) is an important food and cash crop in Ethiopia; serving, as a food security crop due to its nutrition content, wider adaptability and early maturing behavior. However, the yield of the crop is constrained by a number of factors. Among which unspecified seed tuber size and limited availability and distribution of improved varieties are among the important limiting factors. A field experiment...

Author(s): Sadik Ebrahim, Hussien Mohammed and Tewodros Ayalew  

September 2018

Alellopathic effects of aqueous extracts from Bambusa vulgaris Schrad. Ex J. C. Wendl. on seed germination and vigor from Lactuca sativa

The aim of this work was to evaluate allelopathic effects of aqueous extracts from Bambusa vulgaris leaves and culm on Lactuca sativa L. germination. Plant material was collected at Dois Irmãos State Park in Recife, Brazil, and analysis was performed at Laboratory of Forest Seeds Analysis at Rural Federal University of Pernambuco. Experiments were conducted under natural conditions using leaf and culm extracts at...

Author(s): Danielle Roballo de Moura, Emmanoella Costa Guaraná Araujo, César Henrique Alves Borges, Luan Henrique Barbosa Araújo, Tarcísio Viana de Lima, Thiago Cardoso Silva and Camila Costa da Nóbrega  

September 2018

Opportunities and challenges of Islamic microfinance in livestock production: An evidence from Syria

Islamic rural microfinance represents the confluence of three rapidly growing activities: microfinance, Islamic finance and agricultural development. It has the potential to not only respond to unmet demand but also to combine the Islamic social principle of caring for the less fortunate with microfinance’s power to provide financial access to the poor people involved in rural farming. This paper aims to analyze...

Author(s): Salwa Almohamed and Darwish Cheikh  

September 2018

A study of poultry farms in Enugu State Nigeria and mapping of their mechanization needs using Global Positioning System (GPS) and Geographical Information System (GIS)

Poultry has been identified by the World Bank funded Commercial Agricultural Development Program (CADP) as a value chain in the agricultural sector of Enugu State and thus has the potential for commercial agriculture. This work has investigated poultry farms in three production cluster areas in Enugu State namely: Emene (in Enugu East) located on 6.523815°N, 7.4151535°E and 1236 ft; Ngwo (in Enugu North/Udi)...

Author(s): Ozoemena A. Ani, B. B. Uzoejinwa, N. K. Alameze and E. U. Ezugwu  

September 2018

Analysis of a bacterial community structure and the diversity of phzF gene in samples of the Amazonian Dark Earths cultivated with cowpea [Vigna unguiculata (L.) Wald]

It is important to understand the Amazonian Dark Earth (ADE) diversified microbial communities which colonize agricultural soils and interact with plants, allowing a more sustainable way of soil utilization. Genomic prospection of biotechnological interest, such as the phenazine biosynthesis genes, was carried out by the characterization of the bacterial community structure through the analysis of the 16S rRNA gene in...

Author(s): Rosineide C. de Souza, Fabiana de S. Cannavan, Luís I. B. Kanzaki, Lucas W. Mendes, Beatriz M. Ferrari, Rogério E. Hanada and Siu M. Tsai  

September 2018

Hot water immersion disinfests enset (Ensete ventricosum) suckers from the enset root mealybug Cataenococcus ensete Williams and Matile-Ferrero

The enset root mealybug, Cataenococcus ensete Williams and Matile-Ferrero (Homoptera: Pseudococcidae) is a pest of national significance attacking enset in south and south-western Ethiopia. Adults and nymphs of several overlapping generations feed on the crops’ underground corms and roots, making them hard to reach and thus control. The main means of pest spread is through infested planting material. The objective...

Author(s): Sisay Lemawork, Ferdu Azerefegne, Tameru Alemu, Temesgen Addis and Guy Blomme  

September 2018

Combining ability of selected maize (Zea mays L.) inbred lines for major diseases, grain yield and selected agronomic traits evaluated at Melko, South West Oromia region, Ethiopia

The genetic potentials of resistance to turcicum leaf blight (TLB), grey leaf spot (GLS), and common rust (CR) disease, grain yield and selected agronomic trait were studied in 45 F1 hybrids from a half diallel following Griffing’s Model 1, Method 4. The 45 hybrids excluding parents were evaluated in 5 × 9 alpha lattice designs with three replications. The study was carried out at Jimma Agricultural Research...

Author(s): Gemechu Nedi, Leta Tulu, Sentayehu Alamerew and Dagne Wakgery  

September 2018

Diallel analysis in Citrullus mucosospermus (Fursa) for fruit traits

For the estimation of genetic parameters (such as heterosis effect, potence ratio, combining ability and reciprocal effects) of five fruit traits, in order to suggest breeding strategies in Citrullus mucosospermus (Fursa), a field trial was carried out at Kononfla city in Western Côte d’Ivoire using 4x4 full diallel. All 12 F1 hybrids and their parents were planted in a randomized complete block design with...

Author(s): Kouakou Fulgence BROU, Raoul Sylvère SIE, Koffi ADJOUMANI, Yao Didier Martial SARAKA, Badie Arnaud KOUAGO and Cynthia Deborah ADAHI  

September 2018

Modeling of hypsometric distribution of Handroanthus heptaphyllus seedlings in different containers

Hypsometric information of seedlings allows greater assertiveness of silvicultural decisions in nurseries. This study aimed to evaluate the efficiency of different Probability Density Functions (PDF) to estimate and compare the height distribution of Handroanthus heptaphyllus seedlings in different cultivation containers. One hundred and thirty one seedlings were produce in two types of containers; 81 units in tubes and...

Author(s): Bruno Oliveira Lafetá, Renolde Rodrigues, Tamires Mousslech Andrade Penido and Patrícia Lage

September 2018

Identification and estimation of the sugarcane production potential of Mozambique

Identifying the potential areas that can produce sugarcane is extremely important, especially for developing countries. Most of the territories in Mozambique have soils with high and medium agricultural potential but are hampered by water conditions. Therefore, irrigation is the only solution to ensure certainty in agricultural production. In addition, to set up new business a minimum of infrastructure is required, like...

Author(s): Rafael Aldighieri Moraes, Edgar Gomes Ferreira de Beauclair, Felipe Haenel Gomes, Marcelo Melo Ramalho Moreira and Rui da Maia  

September 2018

Evapotranspiration and crop coefficient for Radish under protected cultivation

The objective of this study was to evaluate the real crop evapotranspiration and radish crop coefficient, “Crimson Gigante” cultivar, for different phenological stages under protected cultivation. The research was performed from March to April 2015 in pots arranged in greenhouse located at the Federal University of Campina Grande (UFCG). Dripping irrigation system was used for plants irrigation and the...

Author(s): P. F. Silva, R. M. Matos, M. O. Pereira, A.P. Melo Junior, J. Dantas Neto and V. L. A. Lima  

September 2018

Effect of planting dates and spacing on growth and flowering of French marigold Sel. ‘FM – 786’

The present study was carried out in an experimental farm in the Department of Floriculture and Landscaping, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) during March to December, 2010. The experiment was laid out in split plot design, comprising of eight different planting dates and two spacing, (viz., 30 × 20 cm and 30 × 30 cm) as sub-plot treatment at monthly intervals...

Author(s): Pratibha, C., Gupta, Y. C., Dhiman, S. R. and Gupta, R. K.  

September 2018

Broadcast and in line application of phosphorus in soils with different densities

The efficiency of broadcast versus in line phosphate fertilization has been studied; however, soil density as a determining factor for soil efficiency has been less studied.  Thus, the objective of this study was to evaluate the effect of broadcast and in line phosphate fertilization in soil with different densities on corn development. The experiment was conducted in pots under greenhouse condition. A completely...

Author(s): Luciano de Souza Maria, Ivone da Silva Neves, Henildo de Souza Pereira, Guilherme Ferreira Ferbonink, Gustavo Caione and Flavia de Bastos Agostinho  

September 2018

Reaction of watermelon accessions to Meloidogyne enterolobii

Identification of resistant germplasms is crucial for crop breeding. The aim of this study was to determine the reaction of accessions of watermelon plants to Meloidogine enterolobii using two experiments. In the first experiment, 20 accessions were evaluated, and in the second, the four most promising accessions were selected in the first experiment and two controls. Both experiments were implemented under a completely...

Author(s): José Hamilton da Costa Filho, Manoel Abílio de Queiroz, José Mauro da Cunha Castro, Larissa de Oliveira Fontes, Hailson Alves Ferreira Preston, Tarciana Silva Santos, Nickson Fernandes de Oliveira Carvalho, Saulo Candido de Andrade Silva, Murilo Ferreira dos Santos and Debora Candido  

September 2018

Allometric relationships and carbon content for biomass-carbon estimation of East African Highland Bananas (Musa spp. AAA-EAHB) cv. Kibuzi, Nakitembe, Enyeru and Nakinyika

Globally, interests to increase carbon stocks have gained momentum in both woody and non-woody ecosystems. Despite efforts made to generate appropriate methods to estimate these stocks, most equations developed do not cater for intraspecific variabilities across e.g. species, regions or growth stages; especially in the case of bananas. Therefore, there is need to develop more robust equations to improve on the precision...

Author(s): Daphine Kamusingize, Jackson Mwanjalolo Majaliwa, Everline Komutunga, Susan Tumwebaze, Kephas Nowakunda, Priver Namanya and Jerome Kubiriba  

September 2018

Performance of varieties of green manure in conventionally used soil

The objective of this research was to evaluate the performance of different types of summer green manures in conventionally used soil. This research project was carried out in the district of Concepción (Paraguay). A Randomised Complete Block Design (RCBD) was used, consisting of four treatments and five repetitions. The treatments were Mucuna pruriens (T1); Canavalia ensiformis (T2); Dolichos lablab (T3) and...

Author(s): Amilcar Isidro Servín Niz, Wilfrido Daniel Lugo Pereira, Derlys Fernando López Ávalos, Alexis Saúl Muñoz Pérez, Modesto Osmar Da Silva Oviedo and Eulalio Morel López  

September 2018

Response of potato to different soils and fecal matter fertilizers

Potato (Solanum tuberosum L.) is an important food and cash crop in Kenya. However, its production has declined over the years due to extensive nutrient mining without adequate replacement. A study was conducted to evaluate the response of potato grown under three soil types (Planosol, Andosol and Acrisol) using three fecal matter fertilizers (FMFs). This included vermicompost, normal compost and dried sludge. In...

Author(s): Kevin N. Juma, Lenah Nakhone, Amos A. O. Musandu, Samuel Nyalala, Joshua O. Ogendo and Lawrence Kimaru  

September 2018

Factors affecting the adoption of agricultural innovations on underutilized cereals: The case of finger millet among smallholder farmers in Kenya

Agricultural innovation adoption is fundamental in increasing incomes and food output in developing countries. However, the factors that influence farmers’ decisions to adopt innovations in underutilized crops are not well-documented. Underutilized crops like finger millet have been an alternative form of sustenance for resource-poor farmers especially in arid and semi-arid areas in Kenya. They are more nutritive...

Author(s): Rebecca Jerop, Peter Dannenberg, George Owuor, Patience Mshenga, Paul Kimurto Maximilian Willkomm and Gideon Hartmann  

September 2018

Productive capacity of Brachiaria brizantha (Syn. Urochloa brizantha) cv. Marandu subjected to liming and nitrogen application

This work aims to evaluate production of Brachiaria brizantha (Syn. Urochloa brizantha) cv. Marandu subjected to liming and nitrogen fertilization on climatic conditions in the municipality of Humaitá State of Amazonas, Amazônia, Brazil. For both, pot experiment with soil after sowing was kept in a greenhouse at the Institute of Agriculture and Environmental Education (IEAA / UFAM). Part of the soil pots...

Author(s): Raimundo Nonato Vieira Teixeira, Carlos Eduardo Pereira, Hamilton Kikuti, Bruno Borges Deminicis and Tiago Neves Pereira Valente    

September 2018

Soil nitrate, phosphorus and potassium concentration after four years of liquid swine manure application on Tifton 85

One major problem of swine production is the huge volume of manure generated; this involve difficulties in proper handling of the residue when applied to the soil, given that such elements can be toxic to the environment. This study examined the vertical movement of the P, K and mineral N in the soil profile cultivated with Cynodon dactylon cv. Tifton 85 which was submitted consecutively to rates of Liquid Swine Manure...

Author(s): Tangriani Simioni Assmann, Alceu Luiz Assmann, Laércio Ricardo Sartor, and Talyta Zortéa  

August 2018

Cinnamon and citronella essential oils in the in vitro control of the fungi Aspergillus sp. and Sclerotinia sclerotiorum

Among the fungi that cause damage and/or are spread by seeds, Aspergillus sp. and Sclerotinia sclerotiorum stand out, which have a worldwide distribution and a wide range of hosts. A viable and safer option than chemicals would be to use natural compounds for plant disease management. The objective of this study was to evaluate cinnamon (Cinnamomum cassia) and citronella (Cymbopogon winterianus) essential oils in the in...

Author(s): Simone de Paiva Caetano Bucker Moraes, Willian Bucker Moraes, Wanderson Bucker Moraes, Guilherme de Resende Camara, Khétrin Silva Maciel, Paula Aparecida Muniz de Lima, Adésio Ferreira, Rodrigo Sobreira Alexandre and José Carlos Lopes  

August 2018

Combined agronomic and climatic approaches for sorghum adaptation in Mali

In Sub-Saharan Africa, Genotype-Environment interaction plays a key role in formulating strategies for crop improvement. Multi-location trials have created enabling structure to determine varieties yield performance and stability. Crop modeling led to prediction of long-term and spatial effects of climate variability. Three improved varieties were compared to three landraces. Optimum cultivation areas minimizing the...

Author(s): Salifou Sissoko, , Mohamed L. Tékété, , Mamoutou Kouressy, Korotimi Thera, , Yacouba Dembélé, Mohamed Doumbia, Aliou Sissoko, Sékouba Sanogo, Youssouf Diarra, Moussa Samaké, Jean François Rami,  Abdoulaye G. Diallo, Michel Vaksmann, Oumar Niangado and Niaba Témé  

August 2018

Critical variables for estimating productivity in maize as a function of plant population and spacing

The objective of this study was to find a group of independent variables that would influence and estimate maize (Zea mays L.) productivity, modeled by multiple linear regression. For that, an experimental delinquency in random order was used in a 2 × 2 factorial scheme, from two populations (45,000 and 65,000 ha-1 plants) and two spacings (0.45 and 0.90 m), with 20 replicates. Soil attributes and maize production...

Author(s): Valberto Rômulo Feitosa Pereira, Carlos Alessandro Chioderoli, Elivania Maria Sousa Nascimento, Paulo Ricardo Alves dos Santos, Daniel Albiero, Alexsandro Oliveira da Silva and Walisson Marques Silveira  

August 2018

Welfare effect of eliminating commodity price volatility: Evidence from Tanzania coffee farmers

This paper investigated the welfare consequences of reducing coffee price volatility in Tanzania. GARCH (1,1) model is fitted with monthly coffee prices from 1998 to 2017 to estimate the conditional and unconditional variance of the residual. The coefficient of relative risk aversion and unconditional variance of GARCH (1,1) model are applied in a typical Lucas-like representative argent model to examine the welfare...

Author(s): Godfrey J. Kweka  

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