Irrigation Source Water Lab TestThe foundation of any successful fertilizer program starts with knowing your water. Whether you're running a commercial greenhouse, hydroponic operation, or large-scale fertigation system, your source water chemistry directly impacts root zone pH, nutrient availability, and crop quality. This professional lab analysis gives you the complete picture — so you can build a fertilizer program that actually works.What This Test CoversA comprehensive screening of all key elements that impact crop nutrition: pH and soluble salts Alkalinity and total nitrogen (nitrate-N, ammoniacal-N) Phosphorus, potassium, calcium, magnesium, sulfur Micronutrients: boron, copper, iron, manganese, molybdenum, zinc Harmful elements: sodium, chloride, fluoride, aluminum What You Get Identifies the best controlled-release or water-soluble fertilizer program for your water chemistry Determines how irrigation water will impact root zone pH Identifies nutrient sources in your water and gaps that need supplementation Flags harmful salts and metals that can inhibit crop quality How It Works Purchase this test — we ship you a sample collection kit with all shipping materials and a prepaid label Collect your water sample and send it directly to the ICL Specialty Fertilizers lab Receive your results by email Recommended frequency: Test new water sources before use, and re-test established sources at least twice per year.