critical assessment of organic farming-and-food assertions with particular respect to the UK and the potential environmental benefits of no-till agriculture
(原始内容存档于2020-03-20) (英国英语). Brown, David. Back where virus started, new scrutiny ofpigfarming [回到病毒开始的地方,对养猪业进行新的审查]. The Washington Post. October 25, 2009 [2024-05-04]
Sustainable Agriculture? (页面存档备份,存于互联网档案馆). United States Department of Agriculture, Alternative Farming Systems Information Center. 農業和農學主題 園藝主題 環境主題 生態主題