Because the pH falls below five.5, aluminum will become soluble at amounts poisonous to plants. Furthermore, soluble aluminum reacts with drinking water to make hydrogen ions, even more decreasing soil pH. The objective of liming is to cut back exchangeable aluminum to levels that are not poisonous to vegetation. https://soilanalysislaboratoriesb32108.onzeblog.com/29595672/new-step-by-step-map-for-soil-test-reports-bangladesh