Optimum Plant Population in Iowa, 2007

(2007) Optimum Plant Population in Iowa, 2007. Iowa State University Extension


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As a result of higher seed prices, improved planters and weed management programs, soybean growers are more aware of the importance of seeding rates and optimal plant populations at harvest. A harvest population of approximately 100,000 uniformly distributed plants per acre will maximize economic return in Iowa regardless of row spacing. There appears to be no economic advantage to harvest populations greater than, or less than, 100,000 plants per acre. Economics, however, should be considered carefully when striving for higher harvest populations since seed is expensive. Timely management, such as weed management, is more critical at low plant populations.

Item Type: Departmental Report
Keywords: Soybeans, Plant Spacing
Subjects: Agriculture and food production
Agriculture and food production > Crops
Agriculture and food production > Crops > Soybeans
ID Code: 7966
Deposited By: Margaret Barr
Deposited On: 27 Aug 2009 13:01
Last Modified: 27 Aug 2009 13:01
URI: https://publications.iowa.gov/id/eprint/7966