Cobalt Sulphate – BioGro Restricted
Cobalt is required by leguminous plants like clover and lucerne, but it's often deficient in New Zealand soils. In such cases, Cobalt Sulphate is the most popular form of cobalt used to correct these deficiencies. BioGro certified product.
Sulphur (S): 5
Cobalt (Co): 21
Depends on soil test results