Why does the corn at the end of a row grow shorter than the rest in the field?

Question

Why does the corn at the end of a row grow shorter than the rest in the field?

Answer 1

Compaction and increased evaporation from wind

Answer 2

... the corn at the end of the row gets more dust and less water, also, less fertilizer and is more exposed to wind damage...

Answer 3

It probably gets less sun than the rest of the row.

Answer 4

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Answer 5

Soil compaction and competition for water from trees in the fence line account for most of it.

Sometimes the compacted soil will not hold as much water. Other times the edge of the field is where excess water collects before it drains away.

But if you look across a field, it will appear to be taller away from the edge even if there a lot of short areas in the middle. You simply can not see them over the other corn.

Sometimes we see that weed stands are greatest close to the headlands.

Deep subsoil treatment that breaks up compacted subsoil often solves the problem.

Some have accused  road dust in this situation. But more often road dust gives higher crops close to the road.  So we do not simply accept that explanation.

Answer 6

corn plants grow taller competing for sunlight. the plants around the field borders are not shaded on all sides like the ones in the middle of the field, so they don't have to get as tall to receive the same amount of sunlight during the day.

i could also be because some fertilizer spreaders (spinners) spread less on the outside edges of the spread pattern. growers overcome this by overlapping a little bit. but you cant over lap on the outside pass without doubling the fertilizer.

water could be the factor ........ many variables.

turn rows (where the tractor turns around at the edge of the field) usually stay more compacted.  this leads to more water run off (opposed to in-soak ) and restricted root growth