NPK 15 :15 :15
Ratio : 15 : 15 : 15
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Soil activating granular fertilizer.


Sulphate of Ammonia is a quick acting, nitrogen fertilizer which encourages green and leafy growth. It is especially beneficial for crops such as lettuce, spinach, leeks and onions. As a water-soluble fertilizer, Sulphate of ammonia is extensively used for crop production because it provides efficient nitrogen and readily available Sulphur which aids in plant growth. The high-quality Sulphate of Ammonia Fertilizer from Hayleys Fertilizer is paramount in the maintenance of healthy soil and vibrant crop growth.
SOP is considered a premium-quality potash. It contains two key nutrients for growing crops: potassium and sulfur. Using SOP improves both quality and crop yield and makes plants more resilient to drought, frost, insects and even disease. SOP has been known to improve the look and taste of foods and can boost a plant’s ability to absorb key nutrients like phosphorus and iron.
Most often, SOP is used on high-value crops like fruits, vegetables, nuts, tea, coffee and tobacco. It works better on crops that are sensitive to chloride, which can be toxic to some fruit and vegetable plants.