Browsing by Author "Dikinya, O."
Now showing items 1-9 of 9
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Characterization of agriculture-related land degradation in eastern and western parts of Botswana
Kayombo, B.; Meulenburg, F.; Moganane, B. G.; Dikinya, O.; Aliwa, J. N.; Nsinamwa, M.; Gaboutloeloe, G.; Patrick, C.; Mzuku, M.; Machacha, S. (University of Botswana, http://www.ub.bw, 2005-04)A study was carried out during 1998-2001 with the objective of, firstly, assessing the impact of cultivation on soil quality, and secondly, evaluating the effects of human and animal activities on soil erosion and range ... -
Chicken manure-enhanced soil fertility and productivity: effects of application rates
Dikinya, O.; Mufwanzala, N. (Academic Journals, http://www.academicjournals.org/JSSEM, 2010-05)The utilization of chicken manure as an organic fertilizer is essential in improving soil productivity and crop production. We carried out the study to assess the effects of chicken manure on soil chemical properties and ... -
Comparative analysis of heavy metal concentration in secondary treated wastewater irrigated soils cultivated by different crops
Dikinya, O.; Areola, O. (Springer, http://link.springer.com/, 2010-03)The use of treated urban wastewater for irrigation is a relatively recent innovation in Botswana and knowledge is still limited on its impact on soil heavy metal levels. The aim of this study is to analyze and compare ... -
Comparative assessment of water infiltration of soils under different tillage systems in eastern Botswana
Moroke, T.S.; Dikinya, O.; Patrick, C. (Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2009)Water infiltration is an important component of water balance for improving crop production potential in dryland soil tillage systems in Botswana, particularly in the eastern region. Hardsetting soils common in arable ... -
Comparative effects of secondary treated waste water irrigation on soil quality parameters under different crop types
Areola, O.; Dikinya, O.; Mosime, L. (Global Science Books, http://www.globalsciencebooks.info/Journals/AJPSB.html, 2011)This study compares soil quality parameters, and salinity and heavy metal levels in soils cultivated with different crops under secondary treated wastewater irrigation in the Glen Valley, near Gaborone City, Botswana. The ... -
Decrease in hydraulic conductivity in saturated soil columns and particle release associated with self-filtration in saturated soil columns
Dikinya, O.; Hinz, C.; Aylmore, G. (Elsevier http://www.linkinghub.elsevier.com/retrieve/pii/S0016706108001365, 2008)The dynamics of the process of self-filtration in soil columns have been evaluated for two soils with different structural cohesion (Balkuling agricultural soil and a mining residue) by carrying out experiments focusing on ... -
Influence of sodium adsorption ratio on sodium and calcium breakthrough curves and saturated hydraulic conductivity in soil columns.
Dikinya, O.; Hinz, C.; Aylmore, L.G. (Csiro, http://www.publish.csiro.au/nid/84.htm, 2007)The paper examines the effects of electrolyte concentration and sodium adsorption ration (SAR) on the relative saturated hydraulic conductivity (RHC) and the ionic behaviour of calcium (Ca) and sodium (Na) ions in the Na-Ca ... -
Use of neutron probe and tensiometry techniques in determining water characteristics of the two soil types
Dikinya, O. (University of Botswana, Faculty of engineering and technology, http://www.ajol.info/index.php/bjt/index, 2008)Characterisation of soil water, in particular water flow dynamics is fundamental in assessing the environmental implications to soil management. Soil water characterisation was assessed by measuring soil water content and ... -
Using a pore-scale model to quantify the effect of particle re-arrangement on pore structure and hydraulic properties
Dikinya, O.; Lehmann, P.; Hinz, C.; Aylmore, G. (Wiley http://www.interscience.doi.wiley.com/10.1002/hyp.6299, 2008)A pore-scale model based on measured particle size distributions has been used to quantify the changes in pore space geometry of packed soil columns resulting from a dilution in electrolyte concentration from 500 to 1 ...