Soil Chemistry Overview

This data reflects both the natural elemental composition at the site and the historical influence of nutrient management. Some soil properties such as organic carbon indicate overall soil health, whilst other such as Sodicity, Aluminium and salinity may indicate constraints to root growth and soil water extraction. Comparison between sites of the same soil type will help better understand the difference between these two influencing factors. High or low levels of some nutrients may indicate that some changes in nutrient management may be necessary and we suggest that you contact your local agronomist for their recommendations.

Soil pH is in the A1 and AB horizons is mildly alkaline at 7.3 _h20 and 7.4 _h20. The cation exchange capacity in the A1 horizon is moderate at 15 meq/100g and 12 meq/100g in the AB horizon. This indicates the topsoil layers have moderate ability to hold and supply nutrients to the tree. The organic carbon content in the A1 horizon at 2.2 % is high, trending to low in the AB horizon. No soil layers are saline, however the B21 and B22 are classed as moderately sodic. Phosphorous is noted to be low.