Nutrient Deficiency Technical support for crop nutrition Nutrient deficiency in crops. Is your crop suffering from nutrient deficiency? Inadequate levels of essential plant nutrients can significantly affect crop growth, health and yield. Select a nutrient below to learn more about its role in plant nutrition, deficiency symptoms and how to identify the causes. Nutrient Deficiency P Phosphorous K Potassium N Nitrogen Ca Calcium Mg Magnesium S Sulphur Fe Iron Mn Manganese Cu Copper Zn Zinc B Boron Co Cobalt Mo Molybdenum Benefits of FoliarFertilizers How to applyFoliar Fertilizers Research & Development Production &Logistics Our Full Range Click below to see our product options. Foliar Fertilizers A complete range of super concentrated foliar fertilizers BIOSTIMULANTS Seaweed-based fertilizers, improving fruit quality, plant growth and yield SEED TREATMENTS High concentration suspension seed treatments Organics & Biocontrol A complete range of organic fertilizers Fertilizer Coatings A range of liquid fertilizers to coat granular nutrients Plant Health Promoters Fertilizers focused on stimulating health and disease-resistance Soluble Powder Fertilizers A comprehensive range of water-soluble powder fertilizers TechnicalUpdates Latest trial results from the team