Phosphorus

Phosphorus is necessary for the growth of the plant and the activity of the cells. It encourages root development and increases the ratio of grain to straw, as well as total yield. It stimulates the formation of fats, convertible starch, and healthy seeds and increases the resistance to disease. Excess phosphorus is not harmful to plants.

Procedure for test

1. Transfer 3ml of soil extract into a Phosphorus B Tube.
2. Add 6 drops of Phosphorus Test Reagent #2, cap and swirl tube.
3. Add one Phosphorus Reagent #3 Tablet* cap and swirl until tablet is dissolved
4. Compare color developed immediately, against the Phosphorus Color Chart.

Ralph and Dr. Alllen taking soil sample