Wheat strip effects on nutrient loads following variable manure applications

C. A. Thayer, J. E. Gilley, L. M. Durso, D. B. Marx

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Vegetative filters have been found to significantly reduce nutrient loads in runoff. This study was conducted to: (1) evaluate the effects of a narrow wheat strip, varying manure application rates, and different overland flow rates on runoff nutrient loads following application of beef cattle manure; (2) determine the upper capacity of a narrow wheat strip to reduce nutrient loads by applying excessive amounts of manure; and (3) compare the effectiveness of narrow wheat strips and grass hedges in reducing runoff nutrient loads. A 1.4 m wide strip of actively growing winter wheat was located at the bottom of selected 0.75 m wide by 4.0 m long plots. Three 30 min simulated rainfall events, separated by 24 h intervals, were applied at an intensity of 70 mm h-1 to the plots. The wheat strips were effective in reducing runoff loads of NO3-N, NH4-N, and total nitrogen (TN). Runoff loads of dissolved reactive phosphorus (DP), particulate phosphorus (PP), total phosphorus (TP), NH4-N, and TN were significantly influenced by manure application rate. The application of manure to meet a 2-year rather than a 1-year corn P requirement did not significantly increase DP, PP, or TP loads. However, application of manure to meet a 4-year P requirement resulted in DP, PP, and TP loads that were significantly greater than those obtained for a 2-year P requirement. Runoff rate significantly affected each of the measured water quality parameters. The actively growing wheat strips were much less effective than grass hedges in reducing runoff nutrient loads.

Original languageEnglish (US)
Pages (from-to)439-449
Number of pages11
JournalTransactions of the ASABE
Volume55
Issue number2
StatePublished - Mar 1 2012

Fingerprint

Manure
Manures
pollution load
Phosphorus
animal manures
Nutrients
Triticum
manure
Runoff
wheat
phosphorus
Food
runoff
nutrient
particulates
Poaceae
application rate
Nitrogen
grass
grasses

Keywords

  • Filter strips
  • Land application
  • Manure management
  • Manure runoff
  • Nitrogen
  • Nutrients
  • Phosphorus
  • Runoff
  • Vegetative filters
  • Water quality

ASJC Scopus subject areas

  • Forestry
  • Food Science
  • Biomedical Engineering
  • Agronomy and Crop Science
  • Soil Science

Cite this

Thayer, C. A., Gilley, J. E., Durso, L. M., & Marx, D. B. (2012). Wheat strip effects on nutrient loads following variable manure applications. Transactions of the ASABE, 55(2), 439-449.

Wheat strip effects on nutrient loads following variable manure applications. / Thayer, C. A.; Gilley, J. E.; Durso, L. M.; Marx, D. B.

In: Transactions of the ASABE, Vol. 55, No. 2, 01.03.2012, p. 439-449.

Research output: Contribution to journalArticle

Thayer, CA, Gilley, JE, Durso, LM & Marx, DB 2012, 'Wheat strip effects on nutrient loads following variable manure applications', Transactions of the ASABE, vol. 55, no. 2, pp. 439-449.
Thayer CA, Gilley JE, Durso LM, Marx DB. Wheat strip effects on nutrient loads following variable manure applications. Transactions of the ASABE. 2012 Mar 1;55(2):439-449.
Thayer, C. A. ; Gilley, J. E. ; Durso, L. M. ; Marx, D. B. / Wheat strip effects on nutrient loads following variable manure applications. In: Transactions of the ASABE. 2012 ; Vol. 55, No. 2. pp. 439-449.
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