 micronutrients and macronutrients and other things. The plant needs those things as well. We as humans, we like to focus on NPK. Those are the numbers that are on the bags in the front. We like to focus on that because that's what we're forcing the plant to do. So with chemicals, we are putting a whole bunch of nitrogen in a soluble form where they have to uptake it when they're taking in water. They have to take that nitrogen when it gets into their little bodies. I'm going to personify them here.