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Real and potential environmental quality problems have accompanied the changes in agricultural productivity in recent decades. The development of agriculture has given rise to negative environmental impacts as large quantities of fertilizers and pesticides are used in modern agriculture to...

Maize leaf blight caused by the fungus Helminthosporium turcicum (Exerohilum turcicum) is one of the constraints affecting maize production and thereby eroding income and food security in Zambia and the Southern African region. Maize leaf blight severity on susceptible varieties can range between...

The spotted stem borer, Chilo partellus (Swinhoe) is one of the most destructive pests of maize in the warm, low altitude regions of Zambia. A study was carried out in Sinazongwe district, which is located at about 600 metres above sea level in the Southern Province to determine the incidence of...

Studies on the feeding behaviour of Musca tempestatum were carried out in order to investigate the biology of the fly and its relationship to the lechwe antelope. This was done by observing the fly's feeding activities on the antelope and its breeding activities on the lechwe faeces on which it...

Soil degradation is a major constraint in most sub-Saharan African countries. short fallow rotations of 1-3 years have a potential to increase maize yield without additional inorganic nitrogen fertilizers. The mechanisms responsible for improved maize yield are partially understood. therefore the...

Mwiindilila, C.N. M.Sc., the University of Manitoba, February, 1984. Characterisation of Rhizoctonia solani Isolates from Manitoba Fields. Major Professor: C.C. Bernier Seventy four isolates of R. solani were recovered from diseased seedlings of rapeseed, faba bean, peas, lentils,...

Pigeonpea (Cajanus cajan (L.) Millsp) is of great importance in Zambia for its diversified use, which can lead to increased farm income and subsequently food security at household level. Its seeds have a protein content of approximately 21% and therefore is a cheap source of protein in the human...

Classifyning winter wheat environments into adaptive zones as a basis for recommending a reduction in the number of international winter wheat performance nursery test sites

The common bean (P. vulgaris. L) is an important crop in Africa. The seeds are used dry or green for human consumption and leaves are occasionally used as a leaf vegetable. As a legume beans are capable of fixing nitrogen into the soil for subsequent crops.Though important as a food crop and in...

The unpredictable rainfall patterns increased the demand for early maturing maize cultivars. The two most limiting production constraints in maize are drought and low nitrogen. In most national breeding programs in Southern Africa there are no early maturing testers for use in the early phases of...