Agriculture

Research Papers/Topics in Agriculture

Rhizobia Inoculants Combined With Organic And Inorganic Fertilizer Amendments Effects On Nitrogen Fixation And Yields Of Beans In South Kivu, Democratic Republic Of Congo

ABSTRACTIn South Kivu Eastern of DR.Congo, most soils are highly weathered, leached and have low nutrients content resulting to low agricultural productivity. The objectives of the study was (i)to evaluate the effect of combining rhizobia inoculation and different fertilizer amendment on biomass and grain yields,(ii) to assess the nitrogen fixation efficacy of commercial rhizobia strains and (iii) to assess the effect of combining rhizobia inoculation and different fertilizer amendments on so...

Farmers’ Perceptions And Adoption Of Micro Catchments For Improved Establishment Of Agroforestry Trees In East Shewa Zone, Ethiopia

ABSTRACTTree planting on farms has both environmental and socioeconomic benefits. The practice of establishing trees and tree plantations is common among rural population in the dry regions of Ethiopia, who depend on livestock, trees and tree products for subsistence. Despite the importance of trees, their survival in these dry areas is low and often challenged by drought and water shortage. To address the water scarcity problem, two micro catchments specifically, micro basins and trenches we...

Sulphate And Chloride Ingress And The Effect In Selected Cements Mortar Prisms Immersed In Sea Water And Leather Industry Effluent

ABSTRACTThe effect of ingress of Cl- and SO42- on compressive strength development and the ionsdiffusivity in selected Ordinary Portland Cement (OPC) was investigated. The aggressivemedia used included sea water (SW) and waste water from leather industry (WLI). Threebrands of commonly used cements of OPC in Kenya were used. Mortar prisms wereprepared for each brand of cement at different water to cement ratio; (w/c) of 0.5, 0.6, 0.65and 0.7 and allowed to cure for 28 days in a highly ...

Impacts of Pollution on the Feeding, Bioturbation and Biomass of the Fiddler Crab, Uca annulipes (H. Milne Edwards) in Gazi and Mikindani Mangroves, Kenya.

ABSTRACTMarine pollution is one of the main anthropogenic factors identified globally to affect the estuarine and coastal ecosystems. One of the recipients of pollutants is the mangroves since they are intercepting between land and ocean. In recent years, the mangrove forests have been proposed for use as natural wastewater treatment wetlands. This is based on research findings conducted in countries like China. However, before promoting the use of natural mangrove as pollution buffers, the e...

Assessment Of Profit Efficiency Among Sweet Yellow Passion Fruit Farmers In Mbeere South, Embu County

ABSTRACTThe horticulture industry in Kenya has been very successful in the last one and a half decades. This subsector has grown to become a major employer and foreign exchange earner. In 2014, fruits contributed Kshs. 51.5 billions accounting for 22% of the domestic value of horticultural produce. The sweet yellow passion fruit variety is gaining adoption in Mbeere South Sub-county due to its apparent adaptation to the hot arid conditions and a ready market. Efforts had been made to promote ...

The Effect Of Invasive Species Lantana Camara On Soil Chemistry At Ol- Donyo Sabuk National Park, Kenya

ABSTRACTInvasive species are a major ecological and management concern in natural ecosystems and pose a threat to many of Kenya’s protected areas. Invasive plant species compete and hybridize with native species often to the disadvantage of the native species. Invasion can lead to the phasing out of native species and loss of ecosystem services such as water filtration, soil stabilization, and pest control. They may also result in reduction of wildlife forage or death of animals when they f...

Assessment Of The Potential For Sport Hunting Of Gamebirds With Special Emphasis On Guineafowls In Laikipia District, Kenya

ABSTRACTThis study sought to investigate potential for rural communities in arid and semi-arid areasto derive economic benefit from hunting of gamebirds, specifically the guineafowls. In orderto achieve this, it is important to have knowledge on guineafowl ecology and populationdynamics; particularly how environmental conditions which vary in space and over time,influence their population dynamics. The study focussed on two sympatric species ofguineafowl in Laikipia district, Kenya. The...

Assessment Of Water Quality And Fish Producivity In Three Undrainable Reservoirs Of Naromoru, Nyeri County, Kenya

AbstractNaromoru is a semi-arid area located on the leeward side of Mt. Kenya, and has more than 15 small sized reservoirs constructed to provide water for livestock, irrigation and domestic use. To increase their usefulness, some reservoirs have been stocked with fish, even though no studies have been carried out to establish their suitability and potential for fish culture. This study therefore aimed at assessing the water quality, fish food availability and fisheries productivity of three ...

Effects Of Water Stress On Antioxidant Activity And Phenolic Contents Of African Nightshades And Their Distribution In Kisii And Siaya Counties Of Kenya

ABSTRACTDrought is a major abiotic factor limiting crop productivity in many regions of the world. It causes reduction in plant growth, dry matter accumulation and decline in plant water status of the plants and in certain cases interferes with biochemical processes within cultivated crops. The aim of the study was to map out the distribution of different African Nightshade species in Siaya and Kisii Counties of Kenya and to determine water stress effect on total antioxidant capacity and tota...

Study Of Bioavailability Of Trace Elements In Selected Indigenous Foods And Their Potential Use On Management Of Hiv And Aids

ABSTRACTHIV infection increases nutritional demands and vulnerability to malnutrition. Malnutrition worsens the effects of HIV infection by weakening further the body’s immune system, resulting in earlier and faster progression to the end stage of AIDS. Food supplementation especially with essential elements improves nutritional and clinical status of PLWHA and may delay early use of ARVs. Although high levels of essential elements have been recorded in some indigenous foods, translating ph...

Ultraviolet Radiation And Selenium Nutrition On Yield, Biochemical Composition And Sensory Quality Of Selected Tea Varieties In Kericho County, Kenya

ABSTRACT Ultraviolet (UVB) radiation (280–315 nm) and interaction with Selenium (Se) have potential promoting plant tolerance to UVB stress in plants and modify metabolites that influence taste and functional properties of tea. The objectives of this study were to assess sensitivity of two tea varieties to ambient solar UVB radiation and Selenium nutrition on 1) yield components,2) secondary metabolites, antioxidant activity, theanine and mineral composition of tea and 3) non-aerated ...

Contribution Of Ngusishi Water Resource User Association Towards Farm Forestry Adoption In Ewaso Ng’iro North Catchment Area, Kenya

ABSTRACTTraditional perspective approach has always considered environmental resources such as water as free goods without physical boundaries and the complexity of water uses and users makes it difficult to manage water resources in an efficient and equitable way. In addition, the current low tree planting trends and over harvesting imbalances are suspect and feared to threaten the continuity of the very tree-crop growing practice that has supported farming households over the years. The Ngu...

Legume Fallows For Fuelwood Production And Soil Fertility Improvement In Sauri Millennium Village, Siaya District, Kenya

ABSTRACT This research work was conducted between March 2008 (before start of long rains) and August 2008 (the season for harvesting maize), in Sauri Millennium Village, sub location of Yala division, Siaya district, Kenya. The general objective of this study was the adoption of legume fallows in Sauri millennium village with specific objectives;- (i) To study the current status of legume fallows in Sauri millennium village (ii) To investigate the leguminous tree species for high fuelwo...

Distribution, Utilization and Management of Prunus africana (Hook. f) in Gichugu Division, Kirinyaga District, Central Kenya

ABSTRACT Prunus africana (Hook. f) Kalkman happens to be among the very important tree species. Its bark is used to treat prostate gland hypertrophy (PGH) and benign prostatic hyperplasia (BPH). The increased demand for its medicinal value, together with other uses, has led to the over exploitation of this species in its natural habitat. Its cultivation by small-scale farmers appears to be the only long-term solution for meeting future products needs and its conservation. There is howev...

Linkages Between Integrated Soil Fertility Management Technologies And Marketing Of Smallholder Produce In Meru South And Mbeere Districts, Kenya

ABSTRACT Land degradation and declining soil fertility are increasingly being viewed as critical problems affecting agricultural productivity and human welfare in tropical Africa. It is then imperative that improving soil fertility is key entry point for achieving food security, reducing poverty and preserving the environment for smallholder farms in Africa. However, due to high costs of inorganic fertilizers, tackling soil fertility issues thus requires a holistic approach that integra...


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