000007023 001__ 7023
000007023 005__ 20180122192759.0
000007023 037__ $$a1026-2016-81967
000007023 041__ $$aen
000007023 245__ $$aPrecision Irrigation in South Africa
000007023 260__ $$c2002
000007023 269__ $$a2002
000007023 300__ $$a18
000007023 336__ $$aConference Paper/ Presentation
000007023 490__ $$aConference Papers
000007023 520__ $$aThe Republic of South Africa covers an area of 122 million hectare of which 18 million hectare is potential land for cultivation. Eight percent of the potential arable land are under irrigation, which accounts for nearly half of the water requirement in South Africa. With a population of 42 million and an estimated annual population growth of 1,7%, urbanisation and industrialisation will increase the pressure on the availability of water resources and the allocation thereof in South Africa. The purpose of the National Water Act, Act 36 of 1998, is to ensure that the nation's water resources are protected, developed, conserved, managed and controlled. Agricultural production under irrigation in South Africa retrieves water from water resources such as groundwater which irrigates 24% of the irrigable area, while surface water irrigates 76% of the irrigable area in South Africa. Farmers using groundwater for irrigation is currently subjected to a water resource management charge of 0,54 c/m3. Users of surface water buy a water-right and pay an annual water levy, and groundwater belongs to the owner of the farm who can use it at no cost. Precision irrigation as an aspect of precision agriculture, is a relatively new concept in irrigation farming worldwide. It involves the application of irrigation water in optimum quantities over an area of land which are not uniform and has variations in soil type, soil water capacity, potential yield and topography. Precision irrigation provides a sustainable agricultural system which uses resources efficiently
and develops and maintains the actual water demands. Precision agriculture is a knowledge-based technical management system which should optimise farm profit and minimise the impact of agriculture on the environment.
000007023 542__ $$fLicense granted by Martha Ruddy (ruddy005@gmail.com) on 2008-04-08T18:35:39Z (GMT):

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000007023 650__ $$aFarm Management
000007023 650__ $$aLand Economics/Use
000007023 700__ $$aDennis, H.J.
000007023 700__ $$aNell, Wilhelm T.
000007023 8564_ $$s487992$$uhttps://ageconsearch.umn.edu/record/7023/files/cp02de01.pdf
000007023 887__ $$ahttp://purl.umn.edu/7023
000007023 909CO $$ooai:ageconsearch.umn.edu:7023$$pGLOBAL_SET
000007023 912__ $$nSubmitted by Martha Ruddy (ruddy005@gmail.com) on 2008-04-08T18:38:19Z
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000007023 912__ $$nMade available in DSpace on 2008-04-08T18:38:19Z (GMT). No. of bitstreams: 1
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  Previous issue date: 2002
000007023 982__ $$gInternational Farm Management Association>13th Congress, Wageningen, The Netherlands, July 7-12, 2002
000007023 980__ $$a1026