ABSTRACT

Soil texture greatly influences the amount of lime that is required to raise pH. It is more difficult to alter the pH of a clay soil than of a sandy soil due to different buffering capacities.

The amount of lime required to change pH is given in Table 14.1. By convention this is always stated using ground limestone, in tonnes per hectare. This can be converted to grammes per square metre, by

multiplying by 100. Figure 14.1 shows this data plotted into a graph for future reference.