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Now showing items 41-50 of 127
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). ...
Interactions between woody plants, elephants and other browsers in the Chobe riverfront, Botswana
(Norwegian University of Science and Technology, 2005-11)
This thesis examines the interaction between woody plants, elephants and other browsers in a semi-arid savanna in northern Botswana, southern Africa. Particularly I studied how woody plants respond to herbivory, how browsers ...
Effects of site preparation for afforestation on soil properties and greenhouse gas emission
(The University of Edinburgh, 2009)
Forest plantations in the UK are often established on seasonally waterlogged peaty gley soils which often require site preparation (drainage and mounding) to lower the water table and prepare planting positions. Substantial ...
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, ...
Identification of anaplasma marginale proteins up-regulated during infection of the tick vector
(Washington State University, 2010-08)
The transition between infection of the mammalian host and colonization of an arthropod vector is required for ongoing transmission of a broad array of pathogens, from viruses to protozoa. Understanding how this transition ...
Effects of nitrogen and phosphorus fertilizers on growth, yield, and yield components of sorghum (Sorghum bicolor (L) Moench)
(Botswana University of Agriculture & Natural Resources, 2013-06)
Greenhouse and Held experiments were conducted during the 2009 and 2010 growing seasons at Botswana College of Agriculture to evaluate the effect of different levels of nitrogen (N) and phosphorus (P) ...
Effect of phosphorus on the growth yield and nutrient uptake of intercropped maize( Zea mays (L.) and cowpea (Vigna unguiculata (L.) walp)
(Botswana University of Agriculture & Natural Resources, 2016-06)
In addition to low soil moisture and its holding capacity, constraints to arable agricultural
production in Botswana include low levels of nutrients, especially phosphorus. The objectives
of the study were to determine ...
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 ...
Wheat (Triticum aestivum L.) yields and protein profiles under varying plant densities, nitrogen doses and planting time in Botswana
(Botswana University of Agriculture & Natural Resources, 2020-02)
Field studies were conducted at the Botswana University of Agriculture and Natural Resources,
Sebele, Gaborone, to determine the effects of planting densities, nitrogen application rate, and
planting time, on two wheat ...
Determinants of herd productvity in Botswana: a focus on land tenure and land policy
(University of KwaZulu-Natal, 2006-02)
This study attempts to identify factors responsible for determining differences in the productivity of cattle managed by communal and private livestock farmers in the southern region of Botswana during 1999/2000. It is ...