This concerns planting the corn. I have an Earthway push planter and tractor planters. They all seem to "sow" the seed. It is common to see 3 to 4 corn plants emerge on top of each other. The seed seem to be getting smaller. I have tried to make plate holes smaller or omit some of them. With sweet corn in these parts as much as $15 per pound, I get so disgusted having to do thinning when it shouldn't be necessary. My feed and seed guy agrees with me about the seed seeming to be smaller. What do yall think?