This VicNoTill webinar, presented by David Hardwick, discusses the issue of aluminium availability in soil. He explores where aluminium in soil comes from, why aluminium is inactive in most soils but is active in acidic soils and how to manage it. David uses the analogy of footy fans from different clubs meeting in different areas of a pub to explain how cation exchange works. This video is relevant for all Australian states [1:23:19]. #
Topics:
Managing aluminium issues in your soil [3:05]
Soil minerals [11:19]
Soil aluminium [16:00]
Soil colloids [18:17]
Soil elements [23:25]
Soil cations [27:37]
Soil acidity [35:29]
Exchangeable aluminium [44:21]
Taking action [56:54]