nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqe6mmjez4pq4rxmz5yhx0hlyk8yep528s4hw8agufmefv4mjqndrqhexpw3 (nprofile…xpw3) it has been tried before. In the 1970s they did a relatively large scale experiment (will have to look up details). But it doesn't work in the long term - it gets eaten up and then goes back to the way it was before, so we'd have to dump lots of Iron all the time to sustain the effect.
Kind of like trying to turn a clay soil into loam. You need a ridiculous amount of sand.