Effect of gypsum in the Gwydir Valley
Effect of gypsum on vertisols of the Gwydir Valley, New South Wales. 1. Soil properties and wheat growth DC McKenzie and HB So Australian Journal of Experimental Agriculture 29(1) 51 - 62 Published: 1989 Abstract The effect of gypsum on the properties and crop productivity of 6 contrasting vertisols of the Gwydir Valley, New South