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dc.contributor.author Moroke, T.S.
dc.contributor.author Dikinya, O.
dc.contributor.author Patrick, C.
dc.date.accessioned 2012-05-09T13:13:45Z
dc.date.available 2012-05-09T13:13:45Z
dc.date.issued 2009
dc.identifier.citation Moroke, T.S. et al (2009) Comparative assessment of water infiltration of soils under different tillage systems in eastern Botswana, Physics and Chemistry of the Earth, Vol. 34, No. 4-5, pp. 316–323 en_US
dc.identifier.issn 1474-7065
dc.identifier.uri http://hdl.handle.net/10311/1007
dc.description.abstract 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 lands of Botswana, often require some kind of tillage such as mouldboard ploughing, chiselling and ripping to improve waterharvesting and crop growth conditions. The objective of this study was to compare ponded cumulative infiltration, steady state infiltration rate and sorptivity of soils cultivated using deep ripping, single and double mouldboard ploughing. This study was conducted on Chromic Luvisols (sandy loam), Haplic Luvisols (sandy clay loam), Ferric Luvisols (clay loam), and Ferric Arenosols (sand). Infiltration was measured using double ring infiltrometer method for 4 h. Although infiltration was smaller on traffic line of deep ripping system at all sites, it was only significantly (P < 0.05) different on Ferric Luvisols and Ferric Arenosols. Compared with conventional ploughing, steady state infiltration was greater but not significantly (P > 0.05) different under deep ripped. Cumulative and steady state infiltration rate was greater under sandy than loamy soils, smaller under double ploughing compared with single ploughed and deep ripped soils. Sorptivity was not significantly (P > 0.05) different among tillage systems but was greater under sandy than sandy loam soils. Information on tillage and infiltration can improve implementation of waterharvesting technologies and crop production in Botswana. en_US
dc.language.iso en en_US
dc.publisher Elsevier Science Ltd, http://www.elsevier.com/locate/pce en_US
dc.subject Deep ripping en_US
dc.subject Double ploughing en_US
dc.subject Infiltration en_US
dc.subject Sorptivity en_US
dc.subject Waterharvesting en_US
dc.title Comparative assessment of water infiltration of soils under different tillage systems in eastern Botswana en_US
dc.type Published Article en_US
dc.link http://ac.els-cdn.com/S1474706508002209/1-s2.0-S1474706508002209-main.pdf?_tid=52e78931766fa667f8192d22c2436faf&acdnat=1335254702_51552a969c876013a2e181f138f0ba1c en_US


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