Sulphate of Ammonia
Sulphate of Ammonia is a nitrogen-rich fertiliser that promotes rapid greening in plants and lawn. It is especially effective in leafy plants and vegetables etc. Provides a quick and economical boost to lawns. Contains highly soluble Nitrogen source. Should be used in conjunction with a complete NPK fertiliser.
Sulphate of Ammonia is also used as an effective treatment for killing lawn clover.
Sulphate of Ammonia can be applied every 6 weeks from early spring to early autumn.
For a dry application, evenly spread 15g per square metre over the soil or existing lawn, and water in well.
For a liquid application, dissolve 30g of Sulphate of Ammonia per 5 litres of water in a watering can. This will cover 2 square metres of lawn or garden soil. It is still important to continue watering after application to avoid burning.
To kill clovers, heavily cover the clovers with a dry application of Sulphate of Ammonia. Allow the Sulphate of Ammonia to sit for between 12 to 24 hours, (preferably in hot weather) before watering heavily into the soil. This will begin to burn the clover.
Continue watering the soil daily as the clover burns off. Please note that the surrounding lawn in contact with Sulphate of Ammonia will also burn. However, with continued watering, the lawn will quickly return even stronger than before the clover took over.