Answer: If the kernels fail to fill out, it's due to poor pollination. Since corn is wind-pollinated, you'll have better pollination if the plants are in blocks rather than rows. Be sure your corn gets all day sunshine and plenty of water. You can topdress with additional compost, or feed with diluted fish-based fertilizer to help keep them growing well. Corn can't compete with weeds so hand pull any that appear, but don't cultivate the soil around the stalks or you'll injure the roots. Water deeply once each week (about one-inch of water should do it). Hope you have a great harvest!
Q&A Library Searching Tips