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What fertilizers are suitable for fertigation?

Commonly used water-soluble fertilizers for fertigation include Urea, Potash and other special fertilizers such as Poly feed (nitrogen, phosphorus and potassium), and mono ammonium phosphate (nitrogen and phosphorus)

How do I treat and prevent fertilizer burn?

Using a slow-release fertilizer will reduce the risk of fertilizer burn. If suspect you may have over-fertilized, then we strongly suggest you flush your soil with as much water as it will hold over the next few days.