When Can You Spread Superphosphate?

The best time for side-dressing super phosphate is when plants enter a stage of high nutrient demand, such as when tomatoes begin to bear or ripen fruit. For perennial crops, apply in early spring when vigorous growth ensures that plant roots can take up the phosphate before it is immobilized by fixation.

When can you spread super phosphate?

With winter active clover-based pastures, it is customary to apply superphosphate in the autumn at the start of the main growing season. This is the best time to apply superphosphate where soil phosphorus levels are low and immediate responses are expected.

How do you apply superphosphate?

General use: Ensure the surface is already damp. Spread evenly over the surface, across the root area of the tree, but not closer than 20cm to the trunk. Rake in lightly and water in well.