Granulated Rock Phosphate Fertilizer 11%P (Dolophos26)

This is a granular mineral based product that provides slow release Phosphate throughout the growing season for use in Horticulture, Tillage and Grassland. It also contains important secondary nutrients including 30% Calcium, 2% Magnesium (MgCO3) as well as Manganese, Zinc, Copper and Molybdenum. Phosphate is vital for root growth and plant establishment. Due to its gradual release, Dolophos matches crop uptake. Approved for use on organic holdings subject to approval from your certification body.

Symptoms of Phosphorus Deficiency

Poor growth and root development
Leaves that turn blue/green and become stiff
Fruits small and acidic tasting
Poor yield of fruit
Phosphorus deficiency may be confused with nitrogen deficiency
Particularly susceptible crops are Carrots, Lettuce, Spinach, Apples, Currants and Gooseberries

Application rate:

Maintenance application approx. 2-3kg/100m²
Tillage 200-400kg/ha
Grassland 200-300kg/ha
Higher application rates depend on the scale of the deficiency which can be determined by a soil test
Dolophos is soluble in a 2% formic acid solution