Nitrogen management impacts on yield and nitrate leaching in inbred maize systems

Daniel P. Rasse, Joe T. Ritchie, W. Richard Peterson, Ted L. Loudon, Edward C Martin

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Little information is available regarding N management of inbred maize (Zea mays L.), which exports less N than hybrid maize. Nitrate contamination of the groundwater has been a concern in St Joseph County in southwest Michigan where >20 000 ha of seed maize are grown on sand and sandy loam soils. Over application of N fertilizer potentially reduces profits of the local growers and poses a threat to the environment. A field experiment was conducted from 1990 to 1994 to estimate N fertilizer requirements of three different inbred varieties for maximizing yields while minimizing ground water pollution. Yield and N content of grain and stover were analyzed at the end of each growing season. Nitrate leaching was monitored throughout the 5 yr of study by collecting and analyzing drainage flows out of five large field lysimeters. Grain yield was the least responsive to N fertilization, compared with stover biomass, and grain and stover N concentrations. Analyses of yield, NO3-N leaching and soil N balance indicated that the appropriate fertilization of the P38 mid-season inbred approximated 108 kg N ha-1. Nitrate leaching out of unfertilized plots reached a threshold of 12 to 15 kg N ha-1 yr-1, during the last 2 yr of treatment. Application of 101 and 202 kg N ha-1 generated an average annual loss of 26 and 60 kg N ha-1, respectively, during the last 2 yr of treatment.

Original languageEnglish (US)
Pages (from-to)1365-1371
Number of pages7
JournalJournal of Environmental Quality
Volume28
Issue number4
StatePublished - 1999

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Nitrates
Leaching
Nitrogen
maize
leaching
Fertilizers
nitrate
nitrogen
Groundwater pollution
Lysimeters
Soils
fertilizer
Drainage
Seed
groundwater pollution
Groundwater
Profitability
Biomass
Contamination
Sand

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Rasse, D. P., Ritchie, J. T., Peterson, W. R., Loudon, T. L., & Martin, E. C. (1999). Nitrogen management impacts on yield and nitrate leaching in inbred maize systems. Journal of Environmental Quality, 28(4), 1365-1371.

Nitrogen management impacts on yield and nitrate leaching in inbred maize systems. / Rasse, Daniel P.; Ritchie, Joe T.; Peterson, W. Richard; Loudon, Ted L.; Martin, Edward C.

In: Journal of Environmental Quality, Vol. 28, No. 4, 1999, p. 1365-1371.

Research output: Contribution to journalArticle

Rasse, DP, Ritchie, JT, Peterson, WR, Loudon, TL & Martin, EC 1999, 'Nitrogen management impacts on yield and nitrate leaching in inbred maize systems', Journal of Environmental Quality, vol. 28, no. 4, pp. 1365-1371.
Rasse, Daniel P. ; Ritchie, Joe T. ; Peterson, W. Richard ; Loudon, Ted L. ; Martin, Edward C. / Nitrogen management impacts on yield and nitrate leaching in inbred maize systems. In: Journal of Environmental Quality. 1999 ; Vol. 28, No. 4. pp. 1365-1371.
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