The effects of tillage system and annual crop residue on rill morphology

G. F. McIsaac, J. K. Mitchell

Research output: Contribution to journalArticlepeer-review


Rainfall and overland flow were applied to two soils and three tillage treatments following soybeans in a corn-soybean rotation. Changes in soil surface elevations were measured with a pin-type rill meter. Equations were developed to describe mean rill width as a function of cross sectional area. Estimates of rill width were calculated for various conditions of discharge. The relationship between till width and discharge were compared to equations developed by Elliot and Gilley et al. The equations proposed by Elliott accounted for 94% of the variation in rill widths estimated from field plot data. However, this model tended to under predict rill widths observed for the no-till treatments by 20 to 40%. -Authors

Original languageEnglish (US)
Pages (from-to)97-106
Number of pages10
JournalUnknown Journal
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


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