Calcium is involved in many metabolic roles within the plant. Some of these include root/shoot development, cell wall strength, enzyme activation and neutralising organic acids in the plant.
Calcium application to the soil has other indirect effects to plant growth through reducing soil acidity via calcium carbonate (lime). This has the effect of making many plant nutrients more available and making toxic elements such as Aluminium less soluble in the soil.
Calcium should be applied well before planting at high rates with the usual forms being:
- Lime (Calcium Carbonate)
- Dolomite (Calcium & Magnesium Carbonate)
- Gypsum (Calcium Sulphate)
Impact Fertilisers’ Calcium Products
Single Superphosphate (SSP)
P: 8.8% S: 11% Ca: 19%
SSP has a high calcium content and is often used as planting fertilisers for horticultural crops where phosphorus is required and calcium is beneficial.