A5064019958- Irrigation Practices and Water Management
- Crop Yield and Soil Fertility
- Soil Carbon and Nitrogen Dynamics
- Agronomic Practices and Intercropping Systems
- Agricultural Innovations and Practices
- Plant Water Relations and Carbon Dynamics
- Agricultural Economics and Practices
- Climate change impacts on agriculture
- Agriculture and Rural Development Research
- Rice Cultivation and Yield Improvement
- Forest ecology and management
- Pharmacological Effects of Medicinal Plants
- Soil and Land Suitability Analysis
- Middle East and Rwanda Conflicts
- Transboundary Water Resource Management
- Rangeland Management and Livestock Ecology
- Agroforestry and silvopastoral systems
- Cholesterol and Lipid Metabolism
- Greenhouse Technology and Climate Control
- Insect Pest Control Strategies
- Nematode management and characterization studies
- Food Waste Reduction and Sustainability
- Leaf Properties and Growth Measurement
- Indigenous Knowledge Systems and Agriculture
- Remote Sensing in Agriculture
Jomo Kenyatta University of Agriculture and Technology
2015-2025
University of Science and Technology
2017
The application of mineral fertilizers can effectively enhance crop yields. However, this potential benefit may be diminished if the use leads to a substantial decline in soil organic carbon (SOC) and an increase greenhouse gas (GHG) emissions. This study aimed determine optimal fertilizer combinations rates for improving SOC maize yield while reducing GHG emissions semi-arid uplands Kenya. Data were collected from five different treatments (N50, N100, N150, N100+manure, N100+straw) compared...
Ridge and furrow plastic film mulching (RFM) has improved net primary productivity (NPP) to a high level in semi-arid rainfed agricultural regions. Yet, it is unclear whether there still room for further improvement on NPP while stabilizing soil organic carbon through returning previous maize stover pieces. To address this issue, stubbles were smashed into pieces situ ploughed 30 cm topsoil at site northwest China from 2016 2017. This was done using the Pioneer 335 variety with three...
SUMMARY Conservation agriculture (CA) is a promising technology for controlling soil degradation, mitigating drought, increasing crop yield and reducing production costs. We hypothesized that adopting CA system would improve productivity efficiency, hence resulting in higher profits. To test the hypothesis, we designed study to evaluate water use efficiency (WUE) economic benefits (yield gross margins) of upper lower midlands agro-ecological zones eastern Kenya. Four tillage treatments,...
In sub-Saharan Africa, agriculture can account for up to 66% of anthropogenic greenhouse gas (GHG) emissions. Unfortunately, due the low number studies in region there is still much uncertainty on how management activities affect these To help reduce this uncertainty, we measured GHG emissions from three maize (Zea mays) growing seasons central Kenya. Treatments included: (1) a no N application control (C); (2) split (30% at planting and 70% 1 month after planting) mineral nitrogen (N)...
Abstract The dynamics of inland valley wetlands landuse landcover (LULC) changes are ecological and economical significance hence necessitating up‐to‐date datasets resource status. Nalwekomba wetland is highly agriculturally utilised yet ecologically important threatened with conversion. Historical LULC data sets as bench marks justifying conservation lacking. Therefore, the spatial–temporal in were analysed through a combination remote sensing GIS, using satellite images 1990, 2000, 2010...
Managing soil fertility, especially nitrogen (N) and phosphorus (P), to sustain increased crop productivity is a complex challenge, in cultivated Nitisols. Experiments were conducted over eleven (11) cropping seasons the acidic Nitisols assess impact of management strategies on N, P, productivity. Fourteen treatments laid out Randomized Complete Block Design. The include; control (C), conventional tillage + inorganic fertilizer (CTF), maize residues (CTCrF), goat manure (CTCrGF), Tithonia...
Fully biodegradable (Bio) plastic film is an alternative option to replace widely used polythene in semiarid rainfed regions. However, its productivity and environmental friendliness remain unclear. Field observations were conducted using maize variety Pioneer 335 evaluate the effects of Bio mulching on soil hydrothermal status, carbon sequestration, water a site northwest China from 2016 2017. Six treatments designed as (1) CK-1, ridge furrow (RF) without mulching, (2) CK-2, conventional...
Fractions of phosphorus (P) and its sorption characteristics are affected by different soil fertility (FM) technologies which ultimately affect crop growth productivity. However, the response P fractions to that integrate diverse amendments is still poorly understood in acidic Nitisols. A randomized complete block design was layout an Nitisol determine P, use efficiencies Nitisols under various FM field conditions. The minimum tillage + maize residue inorganic fertilizer goat manure (MTCrGF)...
A three-season research study was conducted at Embu Agricultural Research Station farm to determine the effect of glyphosate-based herbicides on weeds management and maize (Zea mays L.) performance under zero-tillage conservation agriculture practice. Glyphosate herbicide sprays were prepared from Roundup Turbo product rate 2.5 L ha–1 Weathermax 1.5, 3.0 rates. Significant (p ≤ 0.05) differences in observed tested compared un-weeded control plots. The average grain yield conventionally...
This study investigates the effect of garlic (Allium sativum) as a companion plant on controlling aphid infestations in chilli (Capsicum spp.) crops Gicumbi District, Rwanda. The primary objectives were to evaluate impact populations, assess growth and yield performance plants grown association with garlic, explore local farmers' perceptions regarding garlic's efficacy pest management. Field experiments conducted over two growing seasons, comparing intercropped against those monoculture....