17. Grain SA, Operational planning of white maize grain production in the production year 2011/
2012 in Eastern Highveld, Northwest, and Central and Northern Free State, South Africa;
Maize production in South Africa from 2006 to 2013, 2014.
18. Hristov A.N, Oh J, Giallongo F, Frederick T.W, Harper M.T, Weeks H.L, Branco A.F,
Moate P.J, Deighton M.H, Williams S.R.O, Kindermann M, Duval S, An inhibitor
persistently decreased enteric methane emission from dairy cows with no negative effect on
milk production, Proceedings of the National Academy of Sciences, 2015, Vol. 112, No. 34,
pp. 10663–10668.
19. Eskom, Variable Speed Drives: Reducing the energy cost of irrigation on farms, Eskom
Integrated Demand Management, 2015.
20. European Commission, Photovoltaic Geographical Information System (PVGIS)—geographical assessment of solar resource and performance of photovoltaic technology, 2012.
21. Fthenakis V, Frischknecht R, Raugei M, Chul K.H, Alsema E, Held M, Scholten M.W,
Methodology guidelines on life cycle assessment of photovoltaic electricity, Subtask 20
“LCA”, IEA PVPS Task 12, 2011.
22. Moore R.K, Kennedy B.W, Schaeffer L.R, Moxley J.E, Relationships between age and body
weight at calving and production in first lactation Ayrshires and Holsteins, Journal of Dairy
Science, 1991, Vol. 74, No. 1, pp. 269–278.
23. Hersener J-L, Baumgartner D.U, Dux D, Zentrale Auswertung von Ökobilanzen landwirtschaftlicher Betriebe (ZA-ÖB)., Agroscope, Forschungsanstalt Agroscope ReckenholzTänikon ART, Zürich/Ettenhausen, 2011.
24. Hristov A.N, Oh J, Firkins J.L, Dijkstra J, Kebreab E, Waghorn G, Makkar H.P.S,
Adesogan A.T, Yang W, Lee C, Special topics—Mitigation of methane and nitrous oxide
emissions from animal operations: I. A review of enteric methane mitigation options, Journal
of Animal Science, 2013, Vol. 91, No. 11, pp. 5045–5069.
25. International Energy Agency, South Africa: electricity and heat for 2014, 2017, https://www.
iea.org/statistics/statisticssearch/report/?country=SouthAfric&product=electricityandheat,
(Accessed 25.05.2017).
Open Access This chapter is licensed under the terms of the Creative Commons Attribution 4.0
International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing,
adaptation, distribution and reproduction in any medium or format, as long as you give appropriate
credit to the original author(s) and the source, provide a link to the Creative Commons license and
indicate if changes were made.
The images or other third party material in this chapter are included in the chapter’s Creative
Commons license, unless indicated otherwise in a credit line to the material. If material is not
included in the chapter’s Creative Commons license and your intended use is not permitted by
statutory regulation or exceeds the permitted use, you will need to obtain permission directly from
the copyright holder.
Assessment of Cleantech Options to Mitigate the Environmental …
125
2012 in Eastern Highveld, Northwest, and Central and Northern Free State, South Africa;
Maize production in South Africa from 2006 to 2013, 2014.
18. Hristov A.N, Oh J, Giallongo F, Frederick T.W, Harper M.T, Weeks H.L, Branco A.F,
Moate P.J, Deighton M.H, Williams S.R.O, Kindermann M, Duval S, An inhibitor
persistently decreased enteric methane emission from dairy cows with no negative effect on
milk production, Proceedings of the National Academy of Sciences, 2015, Vol. 112, No. 34,
pp. 10663–10668.
19. Eskom, Variable Speed Drives: Reducing the energy cost of irrigation on farms, Eskom
Integrated Demand Management, 2015.
20. European Commission, Photovoltaic Geographical Information System (PVGIS)—geographical assessment of solar resource and performance of photovoltaic technology, 2012.
21. Fthenakis V, Frischknecht R, Raugei M, Chul K.H, Alsema E, Held M, Scholten M.W,
Methodology guidelines on life cycle assessment of photovoltaic electricity, Subtask 20
“LCA”, IEA PVPS Task 12, 2011.
22. Moore R.K, Kennedy B.W, Schaeffer L.R, Moxley J.E, Relationships between age and body
weight at calving and production in first lactation Ayrshires and Holsteins, Journal of Dairy
Science, 1991, Vol. 74, No. 1, pp. 269–278.
23. Hersener J-L, Baumgartner D.U, Dux D, Zentrale Auswertung von Ökobilanzen landwirtschaftlicher Betriebe (ZA-ÖB)., Agroscope, Forschungsanstalt Agroscope ReckenholzTänikon ART, Zürich/Ettenhausen, 2011.
24. Hristov A.N, Oh J, Firkins J.L, Dijkstra J, Kebreab E, Waghorn G, Makkar H.P.S,
Adesogan A.T, Yang W, Lee C, Special topics—Mitigation of methane and nitrous oxide
emissions from animal operations: I. A review of enteric methane mitigation options, Journal
of Animal Science, 2013, Vol. 91, No. 11, pp. 5045–5069.
25. International Energy Agency, South Africa: electricity and heat for 2014, 2017, https://www.
iea.org/statistics/statisticssearch/report/?country=SouthAfric&product=electricityandheat,
(Accessed 25.05.2017).
Open Access This chapter is licensed under the terms of the Creative Commons Attribution 4.0
International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing,
adaptation, distribution and reproduction in any medium or format, as long as you give appropriate
credit to the original author(s) and the source, provide a link to the Creative Commons license and
indicate if changes were made.
The images or other third party material in this chapter are included in the chapter’s Creative
Commons license, unless indicated otherwise in a credit line to the material. If material is not
included in the chapter’s Creative Commons license and your intended use is not permitted by
statutory regulation or exceeds the permitted use, you will need to obtain permission directly from
the copyright holder.
Assessment of Cleantech Options to Mitigate the Environmental …
125