... L 3. high concentration 4. absorbed well Hydroponic Solutions Boron Fertilizer:1. Main Ingredient: ItemContentB≥150g/Lorganic matter≥ ... 100g/L2. Main Characteristics:1) High concentration Chelating poly boron solution ,it does not have sodion. Foliar absorption ... bearing rate,Prompted the soil nutrient contents.4) High content boron fertilizer.3. Applicable Crops:fruiter, vegetables, cotton, peanut, ...