+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Row width and plant density effects on corn grain production in the Northern Corn Belt



Row width and plant density effects on corn grain production in the Northern Corn Belt



Agronomy Journal 94(5): 1020-1023



Continued genetic improvement in the ability of hybrid corn (Zea mays L.) to withstand high plant density stress requires agronomists to periodically reassess optimal plant density and row width. Furthermore, the optimal plant density level and row width for corn grain yield may vary with location, primarily latitude, in the Corn Belt. This study was conducted to evaluate corn grain yield, harvest moisture, test weight, and stalk lodging with modern corn hybrids, as affected by row width and plant density in the northern Corn Belt. At six locations in 1998 and 1999, four hybrids differing in relative maturity, ear type, plant height, and leaf orientation were planted at row widths of 76, 56, and 38 cm and five plant density levels ranging from 56 000 to 90 000 plants ha(-1). Plots were arranged randomly in a split-split plot configuration. Results show that corn grain yield increased 2 and 4% and harvest moisture decreased by a factor of 2.1% when row width was narrowed from 76 cm to 56 cm and 38 cm, respectively. The highest plant density evaluated, 90 000 plants ha(-1), had the highest grain yield. Grain moisture decreased and grain test weight increases slightly as plant density increased. A hybrid x row width interaction was not observed indicating that hybrids that yield well in conventional 76-cm row systems will also yield well in narrow row systems.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 066167175

Download citation: RISBibTeXText

DOI: 10.2134/agronj2002.1020


Related references

Row Width and Plant Density Effects on Corn Grain Production in the Northern Corn Belt. Agronomy Journal 94(5): 20-3, 2002

Corn response to row width and plant population in the northern corn belt. Journal of Production Agriculture 10(2): 293-300, 1997

Effects of plant population, row spacing, and relative maturity on dryland corn in the northern plains. 1. Corn forage and grain yield. Agronomy Journal 66(2): 316-319, 1974

Effects of increasing population density on the production of corn in Hawaii Corn silage, grain yield, Zea mays. Research series Hawaii Institute of Tropical Agriculture and Human Resources University of Hawaii: 982 (013), 1982

Breeding Potential of Semidwarf Corn for Grain and Forage in the Northern US Corn Belt. Crop Science 51(4): 1637-1645, 2011

Grain yield of initial Bt corn hybrid introductions to farmers in the Northern Corn Belt. Journal of Production Agriculture 12(3): 373-376, 1999

Grain yield of initial Bt corn hybrid introductions to farmes in the Northern Corn Belt. Journal of production agriculturet 12(3): 373-376, 1999

Plant density and row width affected the yield of grain, light interception and morphology traits in two corn cultivars. Revista do Sector de Ciencias Agrarias 1(1): 75-81, 1979

Plant density and maize germplasm improvement in the northern corn belt. Maydica 48(2): 105-111, 2003

Changes in Corn Production on the Northern Margin of the Corn Belt. Agricultural History 33(3): 126-132, 1959

Corn Yield, Nitrogen Use, and Corn Rootworm Infestation of Rotations in the Northern Corn Belt. Agronomy Journal 97(3): 4-63, 2005

Impact of planting dates of field corn on beetle emergence and damage by the western and the northern corn rootworms in the corn belt. Annals of the Entomological Society of America 732: 207-215, 1980

Defoliation effects on corn hybrids adapted to the northern corn belt usa. Agronomy Journal 69(3): 387-390, 1977

Rapid canopy closure for maize production in the northern US corn belt: Radiation-use efficiency and grain yield. Field Crops Research 49(2/3): 249-258, 1997

Plant population row width and kernel orientation effects on grain yield of early and medium maturing corn. Soil and Crop Science Society of Florida Proceedings 36: 157-160, 1977