A very large percentage of irrigation water from dams, rivers and boreholes exhibit high pH values due mainly to calcium and magnesium bicarbonate formation when rainwater, saturated with carbon dioxide. reacts and dissolves calcium and magnesium carbonate in the soil.
When large amounts of calcium and magnesium bicarbonate is dissolved, the pH is only slightly increased but the buffer capacity is hugely increased. This leads to carbonate being formed, resulting in precipitation of nutrients as metal carbonates from the irrigation water blocking drippers and micros. Excess bicarbonate and or carbonate increase deterioration of soil structure and fixing of nutrients as carbonates in soil.
To overcome this problem, it is required to decompose the bicarbonates and or carbonates in irrigation water by use of Terra’s range of Fulvic Acids.
For more information contact Terra Dynamics on 079 492 1568.
