Corn Row Spacing
Your seed salesmen can be of assistance in advising you as to row spacing and expected seed rate response.
Corn row spacing. Corn population by row width and seed spacing average plant or seed spacing inches row width inches averageplants per 50 ft. Cons of narrow. Ever since the replacement of horse drawn machinery allowed corn rows to be less than 40 inches apart growers and researchers have looked to narrower row spacing as a way to increase corn yields.
Row spacing corn. Equidistant in row plant spacing. In general this means 15 or 20 row widths.
Row number 12 15 20 22 30 36 38 plants or seeds per acre. Planting corn in twin rows on 30 inch centers is seen as an alternative to planting narrow row corn 22 or 20 or even 15 inch rows. In 50 of the site years corn planted at a 20 inch row spacing yielded 4 8 15 9 bu ac more than the 30 inch row spacing.
Corn acres are grown in 30 inch rows with narrow rows being defined as any spacing less than 30 inches. Because corn is pollinated by the wind the rows of corn need to be close enough and in large enough quantities that. Current row widths employed by producers typically vary from 15 to 38 with most producers at 30 today.
The results from this data suggest that there is a slight yield advantage to 20 inch row spacing compared to 30 inch. Row widths continue to decrease as time moves forward. At one time corn row spacing was determined by the amount of space needed for farm animals to pull.
The row spacings were compared using each of four plant populations 18 24 30 and 36 000 ppa and two corn hybrids early and full maturities. The problem was that the yield responses were quite variable from year to year and location to location. Yet more and more acres are planted to narrower row widths.