Effect of varying soybean planting density on.maize (zea mays) and soybean (glycine max) yields in a maizesoybean Intercrop system in western Kenya

A study to determine the effect of varying soybean planting density on maize and soybean yields in maize-soybean intercrops was carried out in Butere and Mumias districts of western Kenya during the short and long rain growing seasons of 2011 and 2012 respectively. To identify the predominant crops and understand the associated production practices in the smallholder fanning system a survey was carried out. Field experiments were laid out in a Randomized Complete Block Design (RCBD) with a factorial arrangement replicated three times.

Effects of legume cover crop and sub-soiling on soil properties and maize (zea mays l) growth in semi arid area of Machakos District, Kenya

Low crop yields in the semi arid areas of Kenya have been attributed to, among other factors, low soilfertility, low farm inputs, labour constraints and inappropriate tillage practices that lead to pulverized soils. The aim of this study was to determine the effects of legume cover crops (LCC) on soil propertiesand maize growth in the semi arid area of MachakosmDistrict, Kenya. The study was undertaken in farmers’ fields.

Organic based nutrient management strategies: Effect on soil nutrient availability and maize (Zea mays L.) performance in Njoro, Kenya

A field experiment based on the concept of organic nutrient management (ONM) was conducted in Njoro, Kenya to test the effect of improved legume fallows; crotalaria (CR), lablab (LB), garden pea (GP) and natural fallow (NF, as control) on available soil N and P, and maize performance. The experimental layout was a split plot in a randomized complete block design. The main plots were two cropping systems involving the improved legume fallows and NF preceding sole maize and maize bean (M/B) intercrop.

Low Cost Technologies for Enhancing N and P Availability and Maize (Zea mays L.) Performance on Acid Soils

Soil degradation especially soil acidity and low fertility are the major constraints hampering maize production in Molo district, Kenya. The challenge therefore is to develop sustainable soil management strategies for enhancing maize production and concomitantly food security.

Monitoring Changes In Soil Organic Carbon, Moisture Content, Nutrient Balances And Maize (Zea Mays L.) Yield Following Dolichos (Lablab Purpureus (L.) Integration And Fertilizer Application In Maize Systems Of Nairobi County, Kenya

Decline in soil nutrients and organic levels due to continuous cultivation practices combined with erratic rainfall patterns has led to soil fertility decline posing a serious threat to long-term maize (Zea mays L.) production in Nairobi County, Kenya. The current study monitored changes in soil organic carbon, moisture content, nutrient status and maize yield following dolichos (Lablab purpureus (L.) integration and application of fertilizers, as basis for developing sustainable soil fertility management strategies.

Comparison of the Effectiveness of Zero Tillage and Intercropping on Weed Management in Maize (Zea mays L.)

Maize is an important cereal worldwide and weeds are a major constraint to production. A trial was conducted in Kigumo, Murang’a County, Central Province of Kenya in 2010 to compare the effects of glyphosate and intercropping maize with Dolicos lablab on weed and maize yield. Treatments comprised of DUMA SC41 and DK8031 maize varieties, glyphosate, intercropping and weedy arranged in a randomized complete block design in 5x3 m plots replicated three times and data collected in 3x1.5m area in each plot. Weed scores, biomass and maize yield were recorded.

Soil nutrient content, soil moisture and yield of Katumani maize in a semi-arid area of Kenya

Many farmers in Kenya’s semi arid lands cannot afford to purchase inorganic fertilisers to improve their crop yields. They thus rely on traditional agronomic practices such as addition of crop residues, animal manures or intercrops of cereals and legumes. This study investigated soil parameters and their influence on yield. It was carried out at the University of Nairobi’s Dryland, Research and Utilisation Station located at Kibwezi.

The Disappearing Forest: A case study of trends in land use and land cove r change of the threatened Lower Tana River Forest Complex, Coastal Kenya.

The main cause of land use and land cover changes (LULCC) is through changes in the way human beings use and manage their land resources. One of the most vulnerable natural resources most threatened by human beings is the forest. This study investigated trends in LULCC in the Lower Tana River Forest Complex (LTRFC) using Remote Sensing (RS) and GIS technology. The forest is located in the Kenya Coastal lowland and is of considerable value for both biodiversity conservation and local livelihoods.

Socio Ecological Resilience and Pastoral Land Use Change in Semi-arid Lands in Kajiado County Kenya

Since the year 2000, a range of stakeholders and the Kenyan Government have tried to limit the land use/cover change and offer guided development, on the premise that Kajiado North is pastoral and acts as a wildlife dispersal area and migratory corridor for Nairobi National Park. A Wildlife Conservation Lease Programme (WLCP) was started in year 2000 and Kitengela-Isinya-Kipeto land use master plan (LUMP) drafted in 2008 for the period 2008-2028. However not much has been achieved with respect to the objectives.

Land cover and land use mapping and change detection of Mau complex in Kenya using geospatial technology

The significance of the Mau complex is viewed within the context of the en ormous biodiversity of flora and fauna. We evaluate land cover and use chan ges from 1973 to year 2010 through creation of geospa tial tool for change detection. Analysis i s carried out on trend of changes over this period with focus of identifying hum an activities responsible for these changes as we ll as the environmental impacts associated with th e changes.


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