Ever had trouble harvesting a great crop of corn? Healthy plants, but poor quality cobs? It probably is being caused by poor pollination. This is often observed in apparently healthy corn cobs that have few well formed kernels.
Corn is a plant that belongs to the same plant group as grasses and sugar cane - the monocots. As a monocot, it relies on the wind for pollination. Bees or other insects are not involved. This means that you must plant your corn plants in a way that ensures good pollination through the air.
Sowing Seeds Directly into the Ground
This is how most people grow corn. However, ensure that your seeds are reasobably "new" and well within their use-by date. This will ensure a good germination rate resulting in plants not being too far apart, thus enabling good pollination.
Sow your seeds about 1.5mm to 2.0mm deep and 30cm apart in sevral rows that are also 30cm apart. Do not sow corn in a single row - this minimises the liklihood af good pollination.
Sowing Seeds in Punnets
This is my preferred method becasue it ensures that only viable seedlings are transplanted into the the ground. Once again, the importance of this is linked directly to successful pollination when the plants are mature. I have been caught in the past when I have sown seeds directly into the ground and had poor germination rates resulting in plants widely spaced apart - this has then affected pollination and the quality of the harvested corn cobs.
Hopefully the following video will help further: