John F. Grimes, Extension Agriculture and Natural Resources Agent
Objective: To compare the effects of 15-inch and 30-inch row spacing on corn yields.
Background |
|
| Cooperator:
County: Nearest Town: Tillage: Previous Crop: Variety: Planting Date: Fertilizer: |
Jeff Duncan
Highland Hillsboro No-till Soybeans Northrup King N70-05 5/5/99 12/8/99 300 lbs/acre of 4-13-39 5/4/99 642 lbs 28-0-0 per acre |
| Herbiside:
Harvest Date: |
5/4/99 1 qt./acre Roundup Ultra & 2.7 qt./acre Harness
Extra 10/15/99 |
The narrow-row corn was planted with a six-row Kinze planter equipped for 15-inch rows. The 30-inch row corn was planted with a six-row John Deere 7200 planter. Treatments were replicated four times in a complete randomized block design. Plots were 30 feet wide and ranged in length from 1,424 to 1,486 feet.
| Row Width | Planting Population (#/acre) |
Harvest Moisture (%) |
Yield (bu/acre) |
| 15-inch | 39,000 | 17.8 | 143.3 a |
| 30-inch | 29,000 | 16.9 | 141.6 a |
| Treatment means followed by the same letter are not significantly different from each other at P = 0.05. lsd = 4.96 bu/acre, CV = 1.56% | |||
This plot achieved very respectable yields despite a general lack of moisture through the growing season. There was no significant difference in yields between the 15- and 30-inch row spacing. Experimental error was well controlled as indicated by the low coefficient of variation.
For additional information, contact:
Ohio State University Extension, Highland County
119 Gov Foraker Pl
Hillsboro, OH 45133
937-393-1918
grimes.1@osu.edu