Pistachio trees usually need nitrogen fertilizers. In the field of soils that are currently used for pistachio cultivation, the need for pistachio shell other useful elements has not been proven yet, but due to the fact that nut fruits need relatively large amounts of phosphorus and potassium as well as nitrogen during growth and maturity. Pistachios will also be in dire need of these elements. Lack of phosphorus and potassium in the soil can be met through fertilization.
