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Mostrando ítems 1-10 de 28
Article
Chimanga cha makolo, hybrids and composites: farmers' adoption of maize technology in Malawi, 1989-90
(CIMMYT, 1992)
During the 1989-90 and 1990-91 cropping seasons, researchers from CIMMYT and the Evaluation Units of the Malawian Ministry of Agriculture (MOA) collected data to profile farmers' adoption behavior and varietal choices, and ...
Article
Potential technology and research needs for rainfed maize production in drought prone environments of Southern Africa
(CIMMYT, 1989)
In southern Africa, semi-arid areas (here simply defined as areas with less than 700 mm but more than 350 mm of rainfall per annum) can be found from around 100 m to over 1,400 m above sea level. The semi-arid areas most ...
Article
Maize adaptive research: achievements and prospects in Southern Africa
(CIMMYT, 1990)
In the last six to eight years, farming systems adaptive research has contributed much to the understanding of maize production constraints on smallholder farms in southern Africa. It has contributed less to the development ...
Article
Comparative economics of maize production in risky environments in Zimbabwe
(CIMMYT, 1990)
Planting strategies of smallholder farmers are examined in two contrasting study areas in Zimbabwe, Mangwende (sub-humid, natural region II) and Mudzi (semi-arid, natural region IV). to show that farmers regard maize as a ...
Article
Response of four maize varieties to nitrogen at Lisungwi extension planning area, Mwanza, Malawi
(CIMMYT, 1992)
Lisungwi Extension Planning Area (EPA) in Mwanza Rural Development Project (RDP) has insufficient rainfall for optimum maize growth. The soils are generally low in organic matter, nitrogen, phosphorus, and magnesium. Farmers ...
Article
Targeting recommendations for small farmers: the role of economic factors in Zimbabwe and Swaziland
(CIMMYT, 1989)
Natural conditions and major resource differences such as farm size are commonly used in on-farm research to define homogeneous 'recommendation domains' within which new technologies are tested. Successful trial results ...
Article
The contribution of economic analysis in developing promising research agendas: a maize nitrogen x phosphorus trial in Zimbabwe
(CIMMYT, 1990)
Maize accounts for 70% of Zimbabwe's cereal growing area. Its productivity, particularly in the communal areas, is limited by both soil and moisture constraints. Most soils in communal areas are coarse-textured sands derived ...
Article
Extent and causes of low yield in maize planted late by smallholder farmers in sub-humid areas of Zimbabwe
(CIMMYT, 1991)
Diagnostic work was undertaken during 1987-91 to determine the area of maize planted late by smallholder farmers in sub-humid (Natural Regions 2 and 3) communal areas of Zimbabwe, the grain yield losses encountered, and ...
Article
Resistance of four inbred maize lines to inoculation with 20 isolates of maize streak virus from Zimbabwe
(American Phytopathological Society (APS), 2006)
Maize streak is the most widespread and important disease of maize in sub-Saharan Africa. Maize streak virus (MSV)-resistant maize germ plasm is available in several countries, but little is known about the stability of ...
Article
Farmer perceptions on maize cultivars in the marginal eastern belt of Zimbabwe and their implications for breeding
(African Crop Science Society, 2006)
Productivity of maize ( Zea mays check for this species in other resources ) is low in the small-holder sector of Zimbabwe because the crop is grown under stress-prone environments and limited resources. The objective of ...