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Copyright Material

MAP of WA supplied by Department of Land Administration. Perth WA.

Potassium
Pictures:
1, 2, 3 – Phosphate and Potash institute – USA. Used by kind permission.

Pictures:
4 – Symptoms of Nutrient Disorders – Faba Beans & Field Peas – Snowball and Robson. University of WA
5 – Symptoms of Nutrient Disorders – Sub Clover & Wheat – Snowball and Robson. University of WA.
6 – Symptoms of Nutrient Disorders – Narrow Leaf Lupins. Snowball and Robson. University of WA.
7 – Symptoms of Nutrient Disorders – Sub Clover and Wheat. Snowball & Robson. University of WA.

Other pictures from the Robson and Snowball series include those in the sections on Nitrogen (pictures 1 and 2), Phosphorus (1 and 2), Sulphur (pictures 1 and 2) and Calcium and Magnesium (pictures 1 to 5).

These are used with kind permission.