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Now showing items 121-140 of 680
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A survey of donkey farmers in Bobonong village of Central district in Botswana
(Botswana University of Agriculture & Natural Resources, 2008)The objectives of this survey were to characterise farmers keeping donkeys and document the numbers, management, use and marketing of donkeys in Bobonong village of Central district in Botswana. The data was collected ... -
Effects of soil type on the emergence, flowering, nutrient uptake and yield components of bambara groundnut (Vigna subterranea (L.) Verde) landraces in Botswana
(Botswana University of Agriculture & Natural Resources, 2008)On-station experiments were conducted at the Regional Agricultural Research Station-Impala in Francistown. Botswana, during 2003/04, 2004/05 and 2005/06 seasons to determine the effects of sandy loam and sandy clay ... -
Effect of spray nozzle type and crop canopy on spray deposition
(Botswana University of Agriculture & Natural Resources, 2008)A study was carried out to investigate if the interaction between nozzle type and crop canopy has an effect on spray deposition and come up with ways of improving spray deposition during chemical applications to crops. The ... -
Mechanical expression of oil from grated and preheated coconut meat
(Botswana University of Agriculture & Natural Resources, 2008)Coconut oil was extracted from grated coconut using a hydraulic pressing method after the coconut gratings were preheated at heating medium air temperature in the range of 30-900C and heating durations ranging from zero ... -
Missing covariates in multiple linear regression when the data is missing at random
(Botswana University of Agriculture & Natural Resources, 2008)The occurrence of missing values is frequent in data collected for different uses such as in surveys, censuses, balanced experiments. On the other end most statistical analysis methods have been developed for complete ... -
The major cations and trace elements in Notwane river, Botswana and its suitability for irrigation
(Botswana University of Agriculture & Natural Resources, 2008)Notwane river in Botswana, is a perennial river in which the treated secondary or tertiary sewage effluent from Gaborone activated sludge treatment plant is discharged to. The objective of this study was to evaluate the ... -
Farmers’ knowledge, perceptions and management of vegetable pests and diseases in Botswana
(Elservier, 2008)Vegetable farmers’ knowledge and perceptions of pests, diseases and pest management practices were investigated by interviewing 112 growers in Botswana between April and June 2004. Most of the farmers grew brassicae crops, ... -
Factors associated with perceived effectiveness of the out-of-school youth development and economic empowerment program in Botswana
(Botswana University of Agriculture & Natural Resources, 2008)The purpose of the descriptive-correlational study was to determine the perceived effectiveness of the out-of-school youth development and economic empowerment program by youth and youth officers. The target populations ... -
Effects of witchtweed (Striga species) control methods on growth and yield of maize (Zea mays L.) in Swaziland
(Botswana University of Agriculture & Natural Resources, 2008)Striga hermonthica and S. asiatica arc parasitic weeds that reduce yield in cereal crops. Information is scarce on the response of Striga to weed control methods in Swaziland. Therefore, a held experiment was conducted ... -
Screening soybean (Glycine max L.) Merrill cultivars for response to root-knot nematodes, Meloidogyne (Goeldi) spp. in two agro-ccological zones in Ghana, West Africa
(Botswana University of Agriculture & Natural Resources, 2008)Ten soybean cultivars were grown for two seasons in fields heavily infested by Meloidogyne arenaria, M. incognita and M. javanica in two agroecological zones of Ghana in order to assess their reaction to the root-knot ... -
BRIEF COMMUNICATION: High crude protein in autumn pasture does not impair reproductive performance in sheep
(New Zealand Society of Animal Production, 2008)Embryos exposed to ammonia may degenerate or their growth enhanced (McEvoy et al., 1997). Kelly (1982) reported reproductive wastage of 24.9% in South Island sheep. New Zealand pastures contain high concentrations of crude ... -
The effect of blocking the angularis oculi and the facial veins on metabolism of Tswana goats
(Botswana University of Agriculture & Natural Resources, 2008)The aim of this study was to compare changes in resting metabolism of Tswana goats as a result of diverting venous blood to and away from the cavernous sinus. Eighteen male yearlings were equally and randomly assigned to ... -
Biomass productivity of Leucaena diversifolia and L. leucocephala planted in semi aris Botswana’s agroforestry system
(Botswana University of Agriculture & Natural Resources, 2008)Leucaena diversifolia and leucocephala, were planted and evaluated for leaf, pod and wood production at Malotwana, Botswana. The trial was a 2 species x 3 spacings factorial experiment in randomized complete block design ... -
The impacts of pan quarrying on livestock watering in a semi arid region: case study of Kang pan in the Kalahari, Botswana
(Botswana University of Agriculture & Natural Resources, 2008)Scenes of mass death of livestock inside a quarry and on the surrounding pan floor prompted this investigation on the impact of quarrying on livestock watering in the semi arid Kalahari region in southwest Botswana. ... -
On Unit Groups of Completely Primary Finite Rings
(The Berkeley Electronic Press (bepress), 2008-01)Let R be a commutative completely primary finite ring with the unique maximal ideal J such that J3 = (0) and J2 6= (0): Then R⁄J ∼= GF(pr) and the characteristic of R is pk, where 1 ≤ k ≤ 3, for some prime p and positive ... -
Identification of the causal agent of sorghum leaf blight and evaluation of its current management practices in Pandamatenga farming area
(Academic Journals, 2008-01-20)In Botswana, cattle rearing can either be in farms or in communal grazing areas. In communal grazing areas, carrying capacities are never adhered to, hence degradation sometimes occurs. This negatively impact on the ... -
A synthesis of multi-disciplinary research in precision agriculture: site-specific management zones in the semi-arid western Great Plains of the USA
(Springer Link, 2008-03-03)Researchers from Colorado State University, in collaboration with scientists from the United States Department of Agriculture (USDA), initiated a long-term multi-disciplinary study in precision agriculture in 1997. ... -
A critical analysis of disease-associated DNA polymorphisms in the genes of cattle, goat, sheep, and pig
(Springer Verlag, 2008-04)Genetic variations through their effects on gene expression and protein function underlie disease susceptibility in farm animal species. The variations are in the form of single nucleotide polymorphisms, deletions/insertions ... -
Exposure of Melia azedarach fruits to Eimeria lowers oocyst output in yearling Tswana goats
(Elservier, 2008-05)This study assessed the effects of Melia azedarach fruits on oocyst output of goats naturally infected with Eimeria species. The nineteen 12-month-old male Tswana goats weighing 21.5 kg were allocated to either a grass hay ... -
Potential for domestication and commercialization of Hoodia and Opuntia species in Botswana.
(Academic Journals, 2008-05-02)The species Hoodia (Apocynaceae) and Opuntia (prickly pear) (Cactaceae) are highly efficient in water use and belong to the Crassulacean Acid Metabolism (CAM) group of plants. These plant species are quite abundant in ...