Amelioration of subsoil acidity by subsurface placement of amendments in large-scale farm trials at Rutherglen and Bungeet

The aim of this research was to quantify the yield limitation caused by subsoil acidity and evaluate innovative soil amendments which act to ameliorate subsurface acidity.本研究旨在量化亚表层土壤酸度（subsoil acidity）引发的产量限制效应，并评估可用于改良亚表层土壤酸度的新型土壤改良剂（soil amendments）。