Abbreviation: Afr. J. Agric. Res.
Start Year: 2006
Page 1 of 271, showing 20 records out of 5413 total, starting on record 1, ending on 20
DOI: 10.5897/AJAR2017.12279[Article Number: 9BB699E63874]
The main control measure of Yellow Sigatoka (Pseudocercospora musae) in banana plants (Musa spp.) has been the planting of resistant varieties, and fungicide application. However, the use of adequately nourished plants is also emphasized as a complementary control method. This study evaluated the influence of interaction between potassium (K) and calcium (Ca) in nutrient solution on the severity of Yellow Sigatoka in... Read more.
DOI: 10.5897/AJAR2016.11786[Article Number: 01CBF6F63876]
In the African Great Lakes Region, bananas are grown on a diversity of soils with different weathering stages. However studies using the crop yield potential as a mean of soil weathering degree assessment are still scanty. Bananas were grown on five soils types to test if such a relationship could be ascertained. Mineralogical composition, elemental total analysis, routine chemical analysis, oxalates and... Read more.
DOI: 10.5897/AJAR2016.11946[Article Number: 0F5F99C63878]
The Brazilian poultry production currently has a substantial impact on the national and international economy. Brazil ranks sixth in the world rankings of the largest egg producers. However, the activity still has barriers related to management and facilities, such as high waste of electrical energy due to the low energy efficiency of the lighting systems. The artificial lighting programs represent an important... Read more.
DOI: 10.5897/AJAR2017.12232[Article Number: 637190263880]
The global nitrogen (N) cycle is markedly, and increasingly, influenced by anthropogenic inputs. A large unknown remains the quantity of biological N fixation (BNF) inputs derived from agriculture. This leads to major uncertainties in modeling reactive N interactions with climate change, and understanding N biogeochemical processes. Understanding N dynamics is central to enhancing productivity in cropping systems. ... Read more.
DOI: 10.5897/AJAR2016.11856[Article Number: 8E8E05163884]
Okra is one of the most important crops next to maize and sorghum production in Gambella Regional States. Okra production and yield maximization has not been attained due to lack of appropriate production practices such as optimum plant spacing and fertilizer use. Therefore, the research was conducted to assess the effect of plant population, and nitrogen rate on growth and yield components of Okra (Abelmoscus... Read more.
DOI: 10.5897/AJAR2017.12248[Article Number: 92B03C463887]
Field studies were conducted from 2012-13 to 2014-15 to investigate the dynamics of germinable soil seedbank, density and community composition of weeds in crop rotations of barley (Hordeum vulgare L.) + pea (Pisum sativum L.) and bread wheat (Triticum aestivum L.) in Oued Zem, semi-arid Morocco. In September 2012, the initial seedbank in 6 fields was 2354 seeds m-². When herbicide-free barley + pea forage... Read more.
DOI: 10.5897/AJAR2017.12169[Article Number: 7E0550F63889]
Five healthy, vigorous cultivars of sweet potato [Ipomoea batatas (L.) Lam] were cultivated under root-knot nematode Meloidogyne incognita challenge to distinguish levels of resistance to infection. Roots and soil samples were collected 84 days’ post-infection and evaluated for specific host responses to nematode infection by visual screening analysis and quantitative assessments of symptoms of infection.... Read more.
DOI: 10.5897/AJAR2016.11795[Article Number: 274CCCF63899]
The objective of the study is to investigate the interaction of lime and gypsum during incubation of soil samples in response to pH and also check the possibility of using more than one treatment for a single model by model identity method. The analysis of the potential hydrogen ion (pH) was performed in the Laboratory of Agricultural Chemistry, Federal Institute Goiano, Campus Rio Verde - GO, Brazil. The soil used is... Read more.
DOI: 10.5897/AJAR2016.10949[Article Number: B1C8BFD63666]
The endo-β-mannanase acts on the hemicellulose fraction of the endosperm cell walls, mainly mannans and galactomannans. This process weakens cell walls and allows radicle protrusion during seed germination, but may also occur during the deterioration process. Thus, the aim of this research was to determine the activity of endo-β-mannanase enzyme in dry coffee seeds and in soaked seeds, evaluating its... Read more.
DOI: 10.5897/AJAR2017.12127[Article Number: 7D65E6263662]
This study was conducted in 2015 in Ndop, Ngoketujia Division in the North-West region of Cameroon. Four varieties of rice were used: NERICA3, NERICA7 (upland rice), NERICA36 and NERICA42 (lowland rice). Two types of fertilizers N-P-K (23-10-05 and N-P-K (20-10-10) were tested at different doses (0 kg-contol; 180 kg, 200 kg, 220 kg-treatments). The trial was set up in a Randomized Complete Block Design (RCBD) in a... Read more.
DOI: 10.5897/AJAR2015.10647[Article Number: EAFE5EC63669]
There is paucity of knowledge about the current socioeconomic status and farm management practices of cocoa farmers in Ghana. And not up-to-date an accurate knowledge of socioeconomic profile and farm management practices of cocoa farmers is necessary to ensure sustainable cocoa production. In this study, we assessed socioeconomic profile and farm management practices of smallholder cocoa farmers in three cocoa... Read more.
DOI: 10.5897/AJAR2016.11923[Article Number: C87C6EE63673]
Nsukka yellow pepper is an important aromatic pepper that is highly valued for heat, spice and flavour in Eastern Nigeria. The study was initiated to investigate the effects of different plant population densities on the morphological and fruiting characteristics of Nsukka yellow pepper cultivar. Eight treatment combinations giving rise to different population densities were used. The data on the number of leaves,... Read more.
DOI: 10.5897/AJAR2016.11918[Article Number: 660A0A263677]
The integrated crop-livestock-forestry system has been an option in tropics to mitigate the effects of heat stress on pasture-based system for dairy cows. We evaluate the effects of shade arrangements in integrated crop-livestock-forestry systems on physiological and behavioral responses of crossbred dairy heifers. Twenty-four crossbred European-Zebu heifers with 330.0±36.7 kg of body weight were assigned in... Read more.
DOI: 10.5897/AJAR2015.10376[Article Number: 8CD6C2863689]
This study was conducted to evaluate body weight gain, feed intake and digestibility of highland sheep supplemented with wheat bran and dried Acacia saligna leaf five treatments, namely grass hay as a control (T1), 100 g per day A. saligna, (T2), 200 g per day A. saligna (T3), 300 g per day A. saligna (T4) and 400 g per day A. saligna (T5) with a fixed amount (200 g per day) of wheat bran was provided to the... Read more.
DOI: 10.5897/AJAR2015.10123[Article Number: A0271A563693]
The ever increasing demand of farmland, fuel wood and charcoal production coupled with population growth has accelerated the rate of forest reduction in Ethiopia. This has resulted in soil erosion and land degradation. This study was conducted at Arba Minch Zuria Woreda Gamo Gofa Zone, Southern Nations and Nationalities Peoples’ Region (SNNPR), with the aim of assessing impacts of deforestation on the livelihood... Read more.
DOI: 10.5897/AJAR2016.12096[Article Number: 5B124BC63698]
Soil quality is a function of inherent and dynamic properties of soil which determines the sustainability of crop and animal production. Based on this fact, the study was aimed to investigate the effects of land use systems and management practices on soil physical and chemical quality indicators of Vertisol at Pawe district, Northwestern Ethiopia. The result revealed that most of the soil physical and chemical... Read more.
DOI: 10.5897/AJAR2016.11988[Article Number: CD2DB0763701]
Moisture-stress weakens the use of modern inputs such as fertilizer, which could undermine yields. In a growing population, low yields cause food shortage. Investing in irrigation mitigates moisture-stress but expensive for smallholder farmers. Spate irrigation, a sudden flood run-off diverting, is cheaper to invest in than other irrigation technologies such as ponds and shallow-wells. This study investigated factors... Read more.
DOI: 10.5897/AJAR2016.11628[Article Number: 77B895963703]
The study was conducted to differentiate the Woyto-Guji and Central Highland goat breeds of Ethiopia and derive the most accurate linear regression equation for live body weight prediction. Morphological measurements were taken on randomly selected 531 adult female goats (263 from Woyto-Guji and 268 from Central Highland). Positive and highly significant (P<0.001) correlations were observed between body weight and... Read more.
DOI: 10.5897/AJAR2016.11614[Article Number: AC5050F63705]
Cacao is a major economic crop in West Africa and some other parts of the world and is grown through nursery prior to field establishment. The husk of Coffea species forms over 40% of the matured seeds and is regarded as a waste despite its nutrient composition status. Husks of Coffea arabica and Coffea canephora were degraded using Trichoderma harzianum, Streptomyces spp. and the combination of these microbes for... Read more.
DOI: 10.5897/AJAR2017.12167[Article Number: F34516D63707]
Legumes form a very important component in Malawi’s cropping systems because of their roles in food security, income generation and soil fertility improvement through biological nitrogen fixation (BNF). They are commonly grown in various cropping systems including sole cropping, cereal-legume intercrops and legume-legume intercrops (also commonly referred to as “doubled-up”). However, information on... Read more.
Page 1 of 271, showing 20 records out of 5413 total, starting on record 1, ending on 20