Editing Organic farming (section)

=== Land use ===

A 2012 Oxford meta-analysis of 71 studies found that organic farming requires 84% more land for an equivalent amount of harvest, mainly due to lack of nutrients but sometimes due to weeds, diseases or pests, lower yielding animals and land required for fertility building crops.<ref name=tuomisto/> While organic farming does not necessarily save land for wildlife habitats and forestry in all cases,<ref name=oxford/> the most modern breakthroughs in organic are addressing these issues with success.<ref>{{cite web|title=Rodale Institute Farming Systems Trial|url=http://rodaleinstitute.org/our-work/farming-systems-trial/farming-systems-trial-30-year-report/|publisher=Rodale Institute|access-date=24 February 2014}}</ref><ref>{{cite web|last=Undersander|first=Dan|title=Pastures for Profit: A Guide to Rotational Grazing|url=http://learningstore.uwex.edu/assets/pdfs/A3529.PDF|work=University of Wisconsin|publisher=Cooperative extension publishing|access-date=24 February 2014|display-authors=etal}}</ref><ref>{{cite web|last=Undersander|first=Dan|title=Grassland Birds: Fostering Habitats Using Rotational Grazing|url=http://learningstore.uwex.edu/assets/pdfs/a3715.pdf|work=University of Wisconsin|publisher=Cooperative extension publishing|access-date=24 February 2014|display-authors=etal}}</ref>

Professor Wolfgang Branscheid says that organic animal production is not good for the environment, because organic chicken requires twice as much land as "conventional" chicken and organic pork a quarter more.<ref name=wn>[http://www.wn.de/Mobil-Home/Experte-zur-Nachhaltigkeit-in-der-Landwirtschaft-Bio-ist-auch-keine-Loesung Experte zur Nachhaltigkeit in der Landwirtschaft: „Bio ist auch keine Lösung"], Westfälischen Nachrichten, 19 November 2012. {{webarchive |url=https://web.archive.org/web/20150609112506/http://www.wn.de/Mobil-Home/Experte-zur-Nachhaltigkeit-in-der-Landwirtschaft-Bio-ist-auch-keine-Loesung |date=9 June 2015 }}</ref> According to a calculation by Hudson Institute, organic beef requires three times as much land.<ref>[http://www.cgfi.org/pdfs/nofollow/beef-eco-benefits-paper.pdf The Environmental Safety and Benefits of Growth Enhancing Pharmaceutical Technologies in Beef Production] {{webarchive|url=https://web.archive.org/web/20130418112704/http://www.cgfi.org/pdfs/nofollow/beef-eco-benefits-paper.pdf |date=18 April 2013 }}, Alex Avery and Dennis Avery, Hudson Institute, Center for Global Food Issues, Figure 5, page 22.</ref> On the other hand, certain organic methods of animal husbandry have been shown to restore desertified, marginal, and/or otherwise unavailable land to agricultural productivity and wildlife.<ref name="greenbiz">{{cite web|last=Coughlin|first=Chrissy|title=Allan Savory: How livestock can protect the land|date=10 March 2013 |url=http://www.greenbiz.com/blog/2013/03/10/allan-savory-how-livestock-can-protect-land|publisher=GreenBiz|access-date=5 April 2013}}</ref><ref>{{cite web|last=Dagget|first=Dan|title=Convincing Evidence|url=http://www.maninnature.com/Bovines/Cattle/Cattle1a.html|publisher=Man in Nature|access-date=5 April 2013|url-status=dead|archive-url=https://web.archive.org/web/20010306044501/http://www.maninnature.com/Bovines/Cattle/Cattle1a.html|archive-date=6 March 2001}}</ref> Or by getting both forage and cash crop production from the same fields simultaneously, reduce net land use.<ref>{{cite web|last=Bradley|first= Kirsten| title=Why Pasture Cropping is such a Big Deal|date= 7 December 2010|url=http://milkwood.net/2010/12/07/why-pasture-cropping-is-such-a-big-deal/|publisher=Milkwood|access-date=10 January 2014}}</ref>

SRI methods for rice production, without external inputs, have produced record yields on some farms,<ref>{{cite journal|doi=10.3763/ijas.2003.0105 | volume=1 | title=Higher Yields with Fewer External Inputs? The System of Rice Intensification and Potential Contributions to Agricultural Sustainability | year=2003 | journal=International Journal of Agricultural Sustainability | pages=38–50 | last1 = Uphoff | first1 = Norman| issue=1 | bibcode=2003IJAgS...1...38U | s2cid=153721720 }}</ref><ref>{{cite web|last=Piras|first=Nicola|title=New record in Bihar thanks to SRI|url=http://www.agriculturesnetwork.org/resources/extra/bihar-sri|work=Agri Cultures Network|access-date=20 May 2013|archive-url=https://web.archive.org/web/20130911031158/http://www.agriculturesnetwork.org/resources/extra/bihar-sri|archive-date=11 September 2013|url-status=dead}}</ref> but not others.<ref>{{cite journal|doi=10.1016/S1672-6308(12)60010-9 | volume=18 | title=Assessment of System of Rice Intensification (SRI) and Conventional Practices under Organic and Inorganic Management in Japan | year=2011 | journal=Rice Science | pages=311–320 | last1 = Chapagain | first1 = Tejendra | issue=4 }}</ref>