EAST LANSING, Mich. — A population study on dry beans was established in Huron County in 2019. Planted populations ranged from 95,000 seeds per acre to 135,000 seeds per acre, in increments of 10,000 seeds per acre. See background information on the plot below.
Cooperators: Charlie and Seth Briolat
Nearest town: Ubly
Previous crop: Sugar Beets
Row Spacing: 20 inches
Variety: Black Bear black beans
Planting Date: June 12
Harvest Date: October 10
Plot Type: Strips, 260 ft. X 30 ft., replicated four times.
Effect of Population on Dry Bean Yield 2019
Planted Population | Actual Population | Yield (lbs. / A) | Sig |
95, 000 | 90,970 | 2380 | a |
105, 000 | 102,512 | 2273 | a |
115,000 | 111,327 | 2373 | a |
125,000 | 119,945 | 2310 | a |
135,000 | 128,833 | 2745 | a |
LSD 0.05 (lbs/A) | 587 | ||
CV (%) | 10.8 |
Yields of all five planting rates were statistically similar. These results differ from last year, where all planted populations 95,000 – 125,000 yielded statistically similarly, and the 135,000 planted population yielded significantly lower than the 95,000 and the 125,000 planted populations.
— Robert Battel, Michigan State University Extension
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