Abbreviation: Afr. J. Agric. Res.
Start Year: 2006
Page 1 of 276, showing 20 records out of 5503 total, starting on record 1, ending on 20
DOI: 10.5897/AJAR2017.12455[Article Number: 17B962C64896]
The aim of this study was to evaluate the growth and production components of cowpea ‘BRS Nova Era’ under different planting densities in two growing conditions. The experiment followed an experimental design of randomised blocks, which comprised two environments (Pesqueira and Lajedos cities, Brazil) and five planting densities (6, 8, 10, 12 and 14 plants m-1). In Pesqueira, all production components were... Read more.
DOI: 10.5897/AJAR2016.12394[Article Number: 06B04D764904]
Soil chemical forms of Phosphorus and P sorption capacities of Fincha Sugar Estate soils were studied using samples collected from luvisols, vertisols and fluvisols of the farm. P forms were sequentially extracted following standard P fractionation procedure. In sorption study, 3 g of soil sample was equilibrated with 30 ml of 0.01 M CaCl2 containing various amounts of KH2PO4. Data were fitted into Langmuir and... Read more.
DOI: 10.5897/AJAR2017.12339[Article Number: 106AFDC64908]
Genetic (populations and progenies) and environmental (planting date, germination stimulator, insecticide and fungicide) effects were evaluated on Pequi (Caryocar brasiliense Camb.) seeds emergence. Two Completely Randomized Block Design (E1 and E2, on 2005 and 2009 years, respectively) experiments were set up on field. Seeds for E2 were harvested in mother trees whose seeds showed higher germination rate in E1. The... Read more.
DOI: 10.5897/AJAR2016.11370[Article Number: 441BE9B64914]
The definition of the ideal plant population is important for good safflower agricultural management in Brazil, as they are gaining importance as oleaginous plant. Two experiments were conducted in an Rhodic Acrudox in 2014 in Cascavel, PR, Brazil, to evaluate the effect of plant density on growth, yield components and grain yield in safflower oil during autumn and winter seasons. The experimental design was a... Read more.
DOI: 10.5897/AJAR2016.12415[Article Number: 32E487964920]
The knowledge of spatial distribution of soil attributes, particularly chemical ones, which is very relevant for agricultural planning. Several studies have focused on spatial interpolation of soil properties, but only a few of them have been undertaken in sub-Saharan Africa. This study aims to analyse the spatial variability of hydrogen potential (pH) and electric conductivity (EC) within an agricultural region in... Read more.
DOI: 10.5897/AJAR2016.11861[Article Number: 67F1D0964924]
Diverse cultural practices have been communicated to and/or applied by resource-poor households over the past two decades to improve the overall farm health and crop tolerance to biotic/abiotic factors. This study assessed the current diversity and use of cultural practices on banana fields in Ituri and North Kivu provinces, eastern Democratic Republic of Congo (DR Congo). Interview schedules coupled with farm diagnosis... Read more.
DOI: 10.5897/AJAR2017.12438[Article Number: E4B4F7164729]
Okra contributes an important part of the diet to many people in the tropics, more especially in Cameroon. But its production is seriously affected by poor soil fertility. In other to mitigate this problem, a field experiment was conducted from April to august 2016 at Institute of Agricultural Research for Development (IRAD) Nkolbisson-Yaoundé with the main objective to evaluate the effects of different soil... Read more.
DOI: 10.5897/AJAR2016.11816[Article Number: 8D97CC964731]
The study assessed the linkages that exit among research agencies in transfer of technology for continuous agricultural production in South East Nigeria. Four research questions and hypotheses guided the study. The study adopted ex-post-facto research design. The population for the study was 2,276 comprised of 112 agricultural extension agents, 393 officers of research institutes and 1,771 registered contact farmers.... Read more.
DOI: 10.5897/AJAR2017.12312[Article Number: E490A6764733]
The aim of this study was to evaluate the diversity of yam genotypes concerning their agro-morphological traits based on the Ward-modified location model (Ward-MLM) procedure. 209 genotypes from the commercial production area of the Recôncavo region in the state of Bahia, Brazil were used. Three agronomic traits (length, width and weight of the rhizophore) and two morphological traits (rhizophore shape and skin... Read more.
DOI: 10.5897/AJAR2016.11725[Article Number: EA9849B64735]
An experiment was conducted at the Agronomic Institute of Paraná – IAPAR, at the Experimental Station of the municipality of Santa Tereza do Oeste – PR, in Hapludox of clayey soil. Studies with the use of plants cover crops with vigorous root system in different systems of soil management systems are needed, in order to have a diversity of species capable of producing different amounts of crop... Read more.
DOI: 10.5897/AJAR2016.11973[Article Number: 9C37DEC64737]
The fruit flies are considered major pests in the world fruit production due to the direct damage they cause to fruits and the ability to adapt to areas where they are introduced. The objective of this research was to study the fruit fly diversity, the infestation indices in fruits and to characterize the tephritids community in a guava (Psidium guajava L.) cultivar "Paluma", in a commercial orchard located in... Read more.
DOI: 10.5897/AJAR2017.12386[Article Number: 184947B64739]
Agricultural credit has been argued to be very important for sustainable agricultural development and poverty reduction in rural areas. This study seeks to identify and to analyze the determinants of smallholder farmers’ access to and use of credit in Suakoko district, Bong County, Liberia. This research is quantitative using a survey questionnaire distributed to 105 smallholder farmers. Data was analyzed using... Read more.
DOI: 10.5897/AJAR2016.11484[Article Number: 96B495164741]
Citrus black spot (CBS) caused by Phyllosticta citricarpa (McAlpine) Van der Aa (asexual state) synonym Guignardia citricarpa Kiely (sexual state) is one of the most devastating diseases of citrus which occurs in various citrus producing areas around the globe. Management is mainly based on monthly applications of copper fungicides and strobilurins under field conditions. In this study, bio-control agents were evaluated... Read more.
DOI: 10.5897/AJAR2017.12319[Article Number: 0C8AB8864745]
Conflicts between crop farmers and herders are common in nearly every part of Nigeria. It is a formidable challenge to economic development, threat to food security and sustainable livelihood of the agrarian communities. The study assessed the causes and effects of herdsmen-farmers’ conflicts on livelihood of agrarian communities in Kogi State. A total of 135 randomly selected crop farmers was used. Data were... Read more.
DOI: 10.5897/AJAR2017.12417[Article Number: 1EE930164752]
The aim of this study was to evaluate the performance of sources and application rates of topdressed nitrogen (N) on second-crop corn following soybean in an improved fertility Latossolo in the region of Campos das Vertentes, MG. Brazil. A randomized block experimental design was used in a 4 x 5 +1 factorial arrangement, with four replications. The treatments consisted of the combination of four N sources via forms of... Read more.
DOI: 10.5897/AJAR2016.12029[Article Number: 6943ED664644]
Livestock in Niger has great potentials. If well managed, this sector can significantly improve food security and boost poverty alleviation in the population. In order to encourage the development of local milk production in Liptako Gourma, the present study was undertaken to identify constraints related to milk production in the area. A questionnaire based survey was conducted to collect data from 360 dairy farmers.... Read more.
DOI: 10.5897/AJAR2017.12122[Article Number: F035C1564646]
Common bean (Phaseolus vulgaris L.) is the most important source of dietary protein in Uganda but current grain yields are low. Production is particularly low on the degraded Ferralsol soils that dominate the landscape because these soils are generally weathered, acidic and infertile. A study was done on a Ferralsol soil in Masaka District, Uganda to compare productivity and economic return to labor and management... Read more.
DOI: 10.5897/AJAR2017.12304[Article Number: C19BB1964648]
Amorphophallus konjac cannot be cultivated on the same field consecutively for extended periods, but can be cultivated on the same grove. The underlying mechanism for this is unknown and may involve the rhizosphere microbial community. Therefore, the different duration and mode for konjac were researched. Polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) showed that microbial communities... Read more.
DOI: 10.5897/AJAR2017.12373[Article Number: 5D5DA8464650]
An experiment was conducted to evaluate fat sources on growth performance, excreta microbiology and noxious gas emissions in broilers. Experimental birds were reared for 5 weeks and divided into two periods: Starter (0 to 3 weeks) and finisher (4 to 5 weeks). A total of 150 one day old Ross 308 broiler chicks were randomly allocated into five treatments with five replications (six birds per replicate) following a... Read more.
DOI: 10.5897/AJAR2017.12396[Article Number: DBE3EDD64652]
Field experiments were carried out during the period from 2013 to 2017 in the winter season at the experimental farm, Faculty of Agriculture, South Valley University, Qena, Egypt. Improvement yield and its attributes in Edkawy local cultivar via mass selection were done for three cycles. The unselected base population (C0) and selected populations (C1, C2, and C3) evaluated under two different water availability,... Read more.
Page 1 of 276, showing 20 records out of 5503 total, starting on record 1, ending on 20