Phosphorous is essential for the health of lawn grass as well as other plants in the garden. Slow growth, dead patches of lawn and burnt looking grass can be a symptom.
If your lawn grasses are showing slow growth and burnt patches. These symptoms suggest the plant/s are not absorbing sufficient phosphorous.
If the symptoms suggest phosphorous deficiency apply an appropriate organic fertiliser. NOURISH ALL PURPOSE is ideally balanced for providing phosphorous to lawn grasses and promoting strong growth of root systems.
Because phosphorous absorption can be strongly influenced by the pH (acidity - alkalinity) of the soil, check the pH. To make phosphorous most available to the plants adjust the pH to neutral or slightly acidic, pH6.0 - 7.0.
The phosphorous in NOURISH ORGANIC FERILISER range is in the natural forms of seaweed, fishmeal and natural salts. BioGro have certified all the NOURISH range for use in organic gardening.
The typical symptoms of phosphorous deficiency in lawns include slow growth and burnt patches.
Grasses absorb phosphorous in the form of phosphates. Phosphates are not easily dissolved in water so are only slowly leached from soils. However, the pH (acidity - alkalinity) of soil can significantly affect the ability of plants to absorb phosphorous. For optimum absorption of phosphates soil should be neutral to slightly acid, in the range pH6.0-7.0.
Phosphorous is is involved in many aspects of plant growth and strongly encourages root growth.
The macro nutrients that plants need in relatively large quantities are nitrogen (N), sulphur (S), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg). But plants also need trace elements in small quantities for healthy growth. Trace elements include; iron (Fe), manganese (Mn), boron (B), copper (Cu), zinc (Zn) and molybdenum (Mo).