BioLink All Purpose Liquid (3-3-3) Plus Micros is a liquid fertilizer that provides nitrogen, phosphorus, and potassium, plus micronutrients. It improves root and seedling vigor as well as flowering and fruit set. It can be used as fertigation or foliar sprays as part of a fertility program or to correct deficiencies. Derived from hydrolyzed soy protein, rock phosphate (mined), potassium sulfate (mined), and sulfate forms of micronutrients.