Theses and Dissertations: Recent submissions
Now showing items 21-40 of 132
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Wildfire prediction and monitoring in the rangeland areas of Botswana: a case study of Kgalagadi district
(Botswana University of Agriculture & Natural Resources, 2023-01)Fire is a critical tool for managing rangeland ecosystems, particularly in the savannah. However, the increasing wildfire occurrence poses a considerable danger to rangeland ecosystem continuity. Burned area extent and ... -
Abundance and diversity of safflower (Carthamus tinctorius l.) insects in Botswana
(Botswana University of Agriculture & Natural Resources, 2022-10)Water scarcity has become a major challenge for Botswana farmers to increase their production despite various development initiatives introduced by the government. Safflower (Carthamus tinctorius l.) is a drought tolerant ... -
A Geospatial assessment of soil erosion risk and soil fertility changes due to ISPAAD programme: A case study of Dinogeng Agricultural Extension Area, Kgatleng District.
(Botswana University of Agriculture & Natural Resources, 2022-06)This study was conducted in Dinogeng Agricultural Extension Area (DAEA) in the Kgatleng District located in the eastern part of Botswana. The main objective of this study was to assess the impacts of the Integrated Support ... -
The influence of nitrogen and phosphorus nutrition on growth and yield components of safflower (Carthamus tinctorius l.
(Botswana University of Agriculture & Natural Resources, 2022-08)Safflower (Carthamus tinctorius L.) is a versatile crop used for edible oil, vegetable, cut flower production, colouring foods, cosmetics, pharmaceuticals, livestock feed, biofuels, textile, and medicinal purposes. Soil ... -
Evaluation of variety alone or in combination with diatomaceous earth or pyriproxyfen (an insect growth regulator) for managing plodia Interpunctella (hubner) (lepidoptera; pyralidae) on stored groundnuts (arachis hypogaea L.)
(Botswana University of Agriculture & Natural Resources, 2018-09)In storage, insect pests cause considerable losses to stored groundnut (Arachis hypogaca L.) and one of the major storage pests worldwide is Plodia interpunctella (Hubner). Two experiment were conducted to evaluate the ... -
Evaluation of the diversity and pest status of fruit flies on marula, Sclerocarya Birrea in Gabane, Mochudi and Rasesa
(Botswana University of Agriculture & Natural Resources, 2011-07)Manila (Sclerocarya birrea) is one of the most useful indigenous trees in Africa. The fruits of marula are used to produce useful products such as juice, jam and beer. The seed kernels are very rich in proteins and can be ... -
Quantitative assessment and transfers of potentially toxic metals from soils to vegetable crops in urban and peri-urban agriculture land use system in Botswana.
(Botswana University of Agriculture & Natural Resources, 2015-08)Urban and peri-urban agriculture (UPA) is considered an important source of food for cities and for vulnerable households. It is usually characterized by high input intensity and use of wastewater for irrigation. The ... -
Evaluation of bacillus thuringiensis (var. kurstaki), spinosad and cypermethrin for the control of diamondback moth (plutella xylostella l.) on cabbage.
(Botswana University of Agriculture & Natural Resources, 2011-07)An experiment was conducted al the Botswana College of Agriculture (BCA), Gaborone, Botswana (24° 55’S, 25" 95’E) at an altitude of 998m above sea level to evaluate the effectiveness of Bacillus thuringiensis(Bt), ... -
Phosphate sorption and its relation to soil properties
(Agricultural University of Norway, 1986-12-11)In order to study the phosphorus sorption characteristics of six soils from Botswana, 2g of soil were equilibrated at 20°C in 0.01M CaCl2 containing various amounts of dissolved phosphate (0-900 pg P/g soil for two days). ... -
An assessment of biological nitrogen fixation on legumes growing on farmers’ fields and in natural systems and authentication of associated root nodule bacteria
(Botswana University of Agriculture & Natural Resources, 2017-05)The low inherent soil fertility, especially nitrogen (N) constrains arable agriculture in Botswana. Nitrogen is usually added to soil through inorganic fertilizer application. In this dissertation, biological N? fixation ... -
The role and potential of tree growing on farms in the Barolong district – Botswana
(University of Aberdeen, 1992)In the Barolong District the depletion of the woodland resource, upon which households are dependent for fuelwood, poles, fencing material, livestock forage and protection of cropland soil, is a cause for concern. The ... -
Effect of leaf bud removal and partial leaf harvesting on growth, development and yield of cowpeas (Vigna unguiculata [L.] Walp.)
(Botswana University of Agriculture & Natural Resources, 2017-05)Cowpea (Vigna unguiculta [L.] Walp.) originates in tropical Africa. Most producers engage in “dual purpose” cowpea production, where sequential harvests of leaves arc made, followed by seed harvest at the end of the ... -
The dynamics of hydraulic lift in peach tree water relations
(West Virginia University, 1995) -
Vegetation and soil moisture responses following three big sagebrush control methods
(University of Wyoming, 1986-05) -
The effects of drought on plant response in Northern Chehuahuan Desert rangelands
(New Mexico State University, 2001-08)Short term grazing trials were started in June 1992 and continued until 2000; The pastures were grazed in June and September each year except 1996, 1999 and 2000 because of drought. The trials were conducted at New Mexico ... -
The Chemical composition of Crop residues and their effects on Growth rate and Carcass characteristics of yearling Tswana sheep
(Botswana University of Agriculture & Natural Resources, 2010-09) -
Proximate composition of offal and drumsticks of guinea fowl (Numida meleagris) fed mophane worm and various cereal based diets
(Botswana University of Agriculture & Natural Resources, 2015-08)Two studies were carried out to investigate the effects of feeding mophane worm as a protein source and cereals as energy sources on the chemical composition of offal and drumsticks of guinea fowl (Numida meleagris). ... -
Growth performance, haemo-biochemical parameters, carcass characteristics and meat quality in broiler chickens fed malted sorghum-based diets
(Botswana University of Agriculture & Natural Resources, 2021-06)The study was conducted to investigate the effect of feeding malted sorghum grains in place of maize grains on growth performance, blood parameters and meat quality of Ross 308 broiler chickens (R3O8BC). A pilot work (Study ... -
Performance of dairy goats in selected regions of Botswana and the effect of improved management practices on milk yield and composition
(Botswana University of Agriculture & Natural Resources, 2015-11)In Botswana milk production generally come from dairy cattle breeds, but there are some goat breeds that have the genetic potential for producing large quantities of milk. This dissertation was a record of two studies on ... -
Morphological characterization and evaluation of Botswana bottle gourd (Lagenaria siceraria Molina Stand1.) landraces
(Botswana University of Agriculture & Natural Resources, 2021-06)Bottle gourd (Lagenaria siceraria Molina Stand1.) landraces are usually grown in Botswana under subsistence farming. Morphological characterization of the landraces is important to identify promising landraces for breeding, ...
