Botswana Journal of Agriculture and Applied Sciences: Recent submissions
Now showing items 1-20 of 69
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Effects of plant density on growth parameters and yield of sugar bean (Phaseolus vulgaris L.) in Swaziland
(Botswana University of Agriculture & Natural Resources, 2005)Field bean (Phaseolus vulgaris L.) consumed in Swaziland is mostly imported. Small- scale farmers can grow this crop in the country and obtain good yields if the correct planting density is identified. A field study ... -
Post-flowering photoperiodic and temperature effects on phonological development and yield in field-grown bambara groundnut (Vigna subterranea) landraces in a sub-tropical environment.
(Botswana University of Agriculture & Natural Resources, 2005)The post-flowering phonological development of two local bambara groundnut (K/gna subterranea) landraces was studied at Luyengo, Swaziland using six sowing dates between mid-October 1999 and late January, 2000. The ... -
Improved crop-management techniques for better groundnut (Arachis liypogaea L.) production in Western Kenya
(Botswana University of Agriculture & Natural Resources, 2006)Poor agronomic and husbandry practices are largely responsible for the low yields of groundnuts in Western Kenya. This study was undertaken to develop agronomic practices for increasing groundnut yields by small-hold ... -
Assessment of groundnut (Arachis hypogaea L.) genotypes for drought tolerance in Botswana
(Botswana University of Agriculture & Natural Resources, 2006)Groundnut (Arachis hypogaea L.) production in Botswana is adversely affected by erratic and unpredictable rainfall resulting in various periods of drought. As part of a programme aimed at developing drought-tolerant ... -
The heavy metal content of Gaborone secondary sewage effluent in Botswana
(Botswana University of Agriculture & Natural Resources, 2005)The objective of this study was to determine the heavy metal content of the Gaborone secondary effluent in Botswana before its discharged to the Notwane river. Secondary effluent water was sampled every month for one ... -
Cryptosporidium infection in cattle in southern Botswana
(Botswana University of Agriculture & Natural Resources, 2005)A parasitological survey was conducted to determine the prevalence of Cryptosporidium infection in cattle in Gaborone, Lobatse, Mochudi and Molepolole veterinary districts. Faecal samples from 137 dairy and beef calves ... -
Decomposition dynamics of leaves of six indigenous fruit trees commonly found on croplands of southern Africa
(Botswana University of Agriculture & Natural Resources, 2005)Leaf litter decomposition plays a crucial role in the cycling of both nutrients and energy in the tropical croplands. A field experiment was conducted at Botswana College of Agriculture’s Research Farm in 2003 to compare ... -
A survey or indigenous tswana chicken fanners in Kgatleng agricultural district in Botswana
(Botswana University of Agriculture & Natural Resources, 2005)The objectives of this study were to determine the production and marketing parameters of indigenous Tswana chickens in Kgatleng Agricultural District in Botswana. Data was collected through a structured questionnaire from ... -
Production performance and temperature-humidity index of broilers reared in naturally ventilated houses in Botswana
(Botswana University of Agriculture & Natural Resources, 2005)Production performance of straight-run Cobb 500 broilers under commercial management practices was investigated and their temperature humidity index developed. Birds were raised in three non-insulated naturally ventilated ... -
Eye infections in farmed Ostriches(Struthio cuniclus) oil selected farms in Gaborone and Lobatsc districts, Botswana
(Botswana University of Agriculture & Natural Resources, 2005)A study to investigate an outbreak of keratoconjunctivitis among grower ostriches (Struthio camclus) was undertaken on two farms in Lobatsc and Gaborone districts, Botswana. Thirty ostriches (34.1%) showed signs of ... -
Effect of phloem sap deposition on properties of sapwood in Pterocarpus angolensis (Mukwa) following bark stripping by elephants in Chobe forests reserves in northern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)An investigation was carried out to assess properties of sapwood in Pterocarpus angolensis following debarking by elephants in Botswana. The objective of this study was to assess the effect of phloem sap deposition on ... -
Effect of fire burning interval on species composition, herbage yield and bush control in the savanna of eastern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)The purposes of this study were to examine the effects of various fire burning intervals on the dynamics of woodland structure and the resultant herb layer in the savanna vegetation of eastern Botswana. Plots of 1.2 ... -
Evaluation of relative resistance of four cowpea (Vigna unguiculata (L.) Walp) varieties to the black cowpea aphid (Aphis Craccivora) in South-eastern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)Cowpea (Vigna unguiculala (L.) Walp) is an important food legume in many tropical countries, but its production is seriously constrained by insect pests. Aphis craccivora is one of the major pests of cowpea worldwide. ... -
Effects of original source of dairy cows, season and age on milk production in Botswana
(Botswana University of Agriculture & Natural Resources, 2011)The objective of the study was to determine the effects of animal and environmental factors on milk yield of Holstein dairy cows kept under intensive system in Botswana. A total of 768 monthly records of 27 Holstein ... -
Effective stage of African marigold (Tagetes errecta L.) in reducing the root knot nematode (Meloidogyne incognita) Kofoid and White population in a tomato (solanum lycopersicon) crop in Ghana
(Botswana University of Agriculture & Natural Resources, 2011)The aim of the study was to investigate the effective stage of the African marigold, Tagetes erecta, in suppressing root-knot nematode populations in Ghana. Two experiments were conducted in the plant house-/laboratory ... -
Maize-sweetpotato intercropping influences on agronomic characteristics and soil chemical properties in Swaziland
(Botswana University of Agriculture & Natural Resources, 2011)Intercropping is a common cropping system in the humid tropics, and involves growing two or more crops simultaneously on the same farm. The aims of the study were to assess the effects of intercropping maize (Zea mays ... -
Effects of real exchange rate and gross domestic product on yam exports in Ghana
(Botswana University of Agriculture & Natural Resources, 2011)The objective of this paper was to evaluate the responsiveness of Ghana’s fresh yam export supply to real exchange rate and national income (GDP) with the use of time scries data from 1990 to 2004. Data collected from ... -
Evaluation of bread wheat genotypes for yield and other characteristics in Botswana
(Botswana University of Agriculture & Natural Resources, 2011)Evaluation of bread wheat genotypes for yield and other characteristics in Botswana. A few farmers produce a limited quantity of wheat in Botswana using cultivars that have not been recommended for production in the ... -
Potential of an appropriate cropping program for root-Knot (Meloidogyne Spp.) nematode management in tomato cropping systems in Kenya
(Botswana University of Agriculture & Natural Resources, 2011)Studies were undertaken under greenhouse and field conditions to determine the suppressiveness of a wide range of plant species to Meloidogyne spp. nematodes. Potted plants were inoculated with 6000 eggs and /or juveniles ... -
Micro-anatomical changes occurring in the mucosal epithelium of gastrointestinal tract components of ostriches fed ration including or excluding grit in botswana
(Botswana University of Agriculture & Natural Resources, 2011)The aim of this study was to compare the micro-anatomical changes occurring in the luminal epithelium of some gastrointestinal tract (GIT) components of ostriches with and without access to grit in Botswana. Fourteen ostrich ...
