The Maxicrop XOTNF61L Organic Tomato Fertilizer, Seaweed Plus Organic Tomato Fertilizer, provide your crops with the nutrients they need to thrive. These fertilizers contain 2% iron in Natural Seaweed Extract Form, making them perfect for enhancing iron uptake by your plants. The positive impact of iron on tomato production and overall plant health cannot be overstated. In addition to iron, these fertilizers are rich in other essential nutrients such as nitrogen, phosphorus, and potassium, promoting optimal plant growth. The PPSI61L Sequestered Iron helps to reduce the iron level in the soil, preventing it from being bound to other elements and becoming unavailable to your plants. The result is a healthier, more productive garden filled with ripe, juicy tomatoes.