A comparison between conservation and conventional tillage systems for Maize production

The experiment entitled A Comparison Between Conservation and Conventional Tillage Systems For Maize Production was conducted at Kabete (Nairobi, Kenya) during the short rainy season of 1989/90. A 3x2 factorial experiment consisting of three tillage treatments (no-tillage, minimum tillage and conventional tillageJ with two methods of weed control (manual weed control and chemical weed control J was used for the experiment. All treatments were replicated three times on a randomized complete block design.

A comparison between conservation and conventional tillage systems for Maize production

The experiment entitled A Comparison Between Conservation and Conventional Tillage Systems For Maize Production was conducted at Kabete (Nairobi, Kenya) during the short rainy season of 1989/90. A 3x2 factorial experiment consisting of three tillage treatments (no-tillage, minimum tillage and conventional tillageJ with two methods of weed control (manual weed control and chemical weed control J was used for the experiment. All treatments were replicated three times on a randomized complete block design.

Assessment of Farmers’ Perceptions of and Willingness to Pay for Aflasafe Ke01, a Biological Control for Aflatoxins in Kenya

Aflatoxin contamination of key staples compromises quality of food products, trade and health of consumers whereas acute exposure can be fatal. Aflasafe KE01 is a promising biological control product in the management of aflatoxin contamination of key staples reducing levels of the toxin by up to 80 per cent in a single application. The biological product is made up of four natural indigenous strains of Aspergillus flavus that are atoxigenic. Being a novel biological pesticide, farmers’ perceptions and willingness to pay (WTP) need to be understood to facilitate commercialization.

Distribution, pest status and agro-climatic preferences of lepidopteran stem borers of maize in Kenya

Lepidopterous stem borers are the main field insect pests that attack maize, Zea mays L. in tropical Africa. A survey was carried during the long and short rain cropping seasons of 2002 / 2003 across six main agro-climatic zones (ACZs) to determine the spatial distribution of important stem borer species in Kenya. A total of 474 visits were made in the seventy-eight localities conveniently chosen to represent each of the six ACZs. 189,600 stems were checked for infestation, of which 27,799 infested stems were destructively cut and dissected for stem borer larvae identification.

Mycotoxin problem in Africa: Current status, implications to food safety and health and possible management strategies

Mycotoxins are toxic secondary metabolites of fungal origin and contaminate agricultural commodities before or under post-harvest conditions. They are mainly produced by fungi in the Aspergillus, Penicillium and Fusarium genera. When ingested, inhaled or absorbed through the skin, mycotoxins will cause lowered performance, sickness or death on humans and animals. Factors that contribute to mycotoxin contamination of food and feed in Africa include environmental, socio-economic and food production.

Design And Evaluation Of Solar Maize Grain Dryer With A Back-up Heater

A solar dryer integrated with a simple biomass burner was designed and constructed with locally available materials to dry maize. The dryer was composed of solar collector, drying chamber, back-up heater and airflow system all integrated together. The back-up heater provided alternative heating during cloudy weather conditions or at night when solar radiations were low. The dryer was designed based on climatic conditions of Mau summit located in Nakuru County, Kenya.

Effects of Intercropping Young Plants of the Compact Arabica Coffee Hybrid Cultivar Ruiru 11 with Potatoes, Tomatoes, Beans and Maize on Coffee Yields and Economic Returns in Kenya

The effects of intercropping young plants of the compact arabica coffee hybrid cultivar Ruiru 11 with potatoes, tomatoes, maize and Phaseolus (dry) beans were studied between 1987 and 1989 at Ruiru in Kenya. Yields of clean (hulled) coffee were reduced by the maize intercrop by 59–100%. Coffee bean size, and raw, roast and liquor quality were not significantly affected by the potato, tomato and bean intercrops, which gave positive net economic benefits.

How qualitative studies and gender analysis can add value to the assessment of dietary exposure to aflatoxins in Kenya

In tropical countries, maize, groundnuts, sorghum and milk are often contaminated by mycotoxins, which are toxic substances produced by fungi. High levels of exposure are fatal and lower levels can cause liver cancer in people and growth depression in livestock. Mycotoxicosis constitutes a classic ‘one health’ problem that affects the health of humans and livestock. Kenya has had some of the world’s severest outbreaks of mycotoxicosis and surveys typically show a high level of contamination of staple foods. Howe­ver, much less is known about the potential health risks of contaminated milk.

Soil macrofauna community structure across land use systems of Taita, Kenya

This paper presents data on diversity and abundance of soil macrofauna in various land use systems in Taita (natural forest, plantation forest, fallow, coffee, napier, and maize, Horticulture. Each was sampled for macrofauna using three sampling methods (monolith, transect and pitfall trapping). Seventy eight (78) genera/species were recorded across the different land use systems of Taita. Rényi diversity profile indicated no significant differences in species richness across land use systems as reflected by the very close diversity profiles at α = 0.

An analysis of factors influencing farmers’ choice of green gram marketing channels in Mbeere south sub-county, Kenya

Smallholder farmers in Mbeere South sub-County face crop production and marketing constraints that trap them in a vicious cycle of poverty. Mainstream marketing research and development efforts often focus on the major staples such as maize, rice and wheat, neglecting the traditional crops of high value such as green grams, cowpeas, and sorghum. Most of the traditional crops of high value are produced in the arid and semi-arid lands (ASALs) where they experience many challenges.

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