Influence of soil parent materials on potassium availability to maize in western Kenya

Potassium (K) deficiency is an emerging problem in intensively cropped soils of Kenya; which contradicts a hitherto existing belief that Kenyan soils have adequate K to meet crop needs. The emerging K deficiency is attributed to a net negative K balance in soils, as a result of greater losses than gains. Weathering of parent materials is an important nutrient input pathway, which has hardly been studied in Kenya.

Benefits of maize variety protection in Kenya

Several African countries and regional organizations are investing in the establishment of a plant variety protection system modeled on the UPOV 1991 Convention, which currently provides the strongest, international standard for plant variety protection. Whereas proponents argue that strong protection of breeder’s rights will incentivize breeding and the introduction of new varieties for farmers, opponents fear that the proposed legal framework is unsuitable for African countries as it may hamper traditional farming practices of using and exchanging farm-saved seed.

Market samples as a source of chronic aflatoxin exposure in Kenya

Surveillance of food and feed quality in Kenya has not reached effective level due to the expensive procedures of mycotoxin analysis and poor structures in quality control. Most foodstuffs and feeds sold in local markets do not go through any quality control measures. The outbreaks of aflatoxicoses every year since the major outbreak that occurred in 2004 (CDC, 2004; Muture and Ogana, 2005, Azziz-Baumgartner et al., 2005) suggests that the population is exposed to aflatoxins in their diet.

"Decision making among small scale women horticultural farmers in Limuru location of Kiambu district, Kenya"

This study is an examination of the factors that small scale women farmers consider when engaging in horticultural farming. The study focused on a small area of Limuru Location, Kiambu District, Central Province. The objectives of the study were to identify the varieties of horticultural crops cultivated in the area and the individuals responsible for choosing these crops. It also investigated and documented the rationale for the choices made regarding type of crops grown and methods for solving problems encountered.

Project report day lighting performance of the light shelf

This report is a presentation on day lighting performance of a Light shelf as passive design solution to day lighting within a set of parameters. The objective of this report is to provide data that will help in making important decisions with regard to optimum use oflight shelf as day lighting device. This project report provides a stepping-stone for other researchers to explore other parameters that affect the light shelf s performance as only the basic parameters have been explored in this project.

Climbing Beans In Rwanda: Development, Impact, And Challenges

Beans (Phaseolus vulgaris L.) are the second major contributor of dietary protein in East and Central Africa. With an adoption rate of 50% among farmers just 10 years after their introduction, improved climbing beans are fast replacing the bush type, raising on-farm productivity and contributing significantly to the GDP in Rwanda.

Breeding Red-Mottled Beans for East and Central Africa

The common bean is grown by more than 90% of small-scale farmers in Africa. Of all the seed types grown in East and Central Africa, the red-mottled types occupy the greatest area: 650,000 ha in Eastern Africa and 90,000 ha in Southern Africa. This is also the most important bean type sold and consumed in Uganda, Kenya, Tanzania, Burundi, Malawi, Zambia, and Mozambique, with a market share of about 22% in Eastern Africa.

Bean Breeding For Africa: Strategy And Plan

The common bean is the principal grain legume grown by small-scale, resource-poor farmers for food and sale in many countries in sub-Saharan Africa. However, its productivity is severely constrained by many biotic and abiotic constraints, resulting in low production despite rising demand. The International Center for Tropical Agriculture (CIAT), in partnership with national programmes, regional networks, and NGOs, has released several improved bean varieties in the last decade.

Breeding beans for smallholder farmers in Eastern, Central, and Southern Africa: Constraints, achievements, and potential

Serious declines in food security and income in sub-Saharan Africa over the past two decades have resulted in widespread poverty and malnutrition, especially among resource-poor smallholders and the urban poor. The common bean is a major part of their food requirements and source of income, but there have been declines in bean productivity, attributable to a number of factors and estimated at nearly 3,000,000 t per year.

Evaluating The Agronomic Effectiveness Of Human Faecal Compost On Maize Yields, Its Influence On Soil Chemical Properties And Soil Fauna Abundance

Low soil fertility status has been stated as the main cause of poor crop yields in many sub-Saharan countries. This challenge can be addressed by using cheap and readily available options. One such option is human excreta. Human excreta contain millions of tons of nutrients. It is estimated that in a year, humans excrete an equivalent of 20 -30% of global annual fertilizer industry production. Unfortunately, most of the nutrients end up in water bodies through wastewater and surface runoff.


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