Fertilizers are any natural or synthetic products that can be added to soil to supply nutrients for plant growth. Those managed by Vallis include Urea, NPK (Nitrogen, Phosphorus and Potassium), SSP (single super phosphate) and MOP (muriate of potash).
Fertilizer has been managed by Vallis in Kenya, Malawi, Mozambique, Senegal, South Africa, Tanzania, Uganda, Zambia and Zimbabwe. Over 2.4 million tonnes of fertilizer has been handled by Vallis since 2006.
Vallis has also produced a research report on fertilizers, which is available to read at the link below: