Aktar M.W., Sengupta D., and Chowdhury A.
2009. Impact of pesticides use in agriculture: Their benefits and hazards. Interdisciplinary Toxicology. 2:1–12.
Baier A.H. and Ahramjian L.
2012. Organic Certification of farms and businesses producing agricultural products. Available at Web site http://www.ams.usda.gov/nop (verified 29 December 2016).
Barbash J.E., Thelin G.P., Kolpin D.W., and Gilliom R.J.
1999. Distribution of major herbicides in groundwater of the United States. Water Resources Investigations Report 98-4245 USGS.
Bond W. and Grundy A.C.
2001. Non-chemical weed management in organic farming systems. Weed Researcg
Boyd N.S. and Brennan E.B.
2006. Burning nettle, common purslane, and rye response to clove oil herbicide. Weed Technology
Cardina J., Regnier E., and Sparrow D.
1995. Velvetleaf (Abutilon theophrasti) competition and economic thresholds in conventional- and no-tillage corn (Zea mays). Weed Science
Clay S.A., Clay D.E., Horvath D.P., Pullis J., Carlson C.G., Hansen S., and Reicks G.
2009. Corn response to competition: Growth alteration vs yield limiting factors. Agronomy Journal
Cloutier D.C., Leblanc M., and Johnson E.
2007. Non-inversion production techniques in North America. In Cloutier D. (ed.). 7th European Weed Research Society Workshop on Physical and Cultural Weed Control. Universität Rostock, Rostock, Germany. p. 3–14.
2012. Why have no new herbicide modes of action appeared in recent years?
Pest Management Science
2016. Corncob grit application as an alternative to control weeds in two crop production systems. Dissertation, South Dakota State University, Brookings, SD.
2009a. Potential use of abrasive air-propelled agricultural residues for weed control. Weed Research. 49:341–345.
2009b. Potential of air-propelled abrasives for selective weed control. Weed Technology
2010. Post-emergence weed control through abrasion with an approved organic fertilizer. Renewable Agriculture and Food Systems
2012. Air-propelled abrasive grit for postemergence in-row weed control in field corn. Weed Technology
Harker K.N. and O'Donovan J.T.
2013. Recent weed control, weed management, and integrated weed management. Weed Technology
1974. Gains to the grower from weed science. Weed Science
2017. The international survey of herbicide resistant weeds. Online. Available at Web site http://www.weedscience.org (verified 4 January 2017).
2004. Weed control with organic production. Proc. SE Regional Fruit and Vegetables Conference. Savannah, GA. p. 13–14.
Johnson W.C. III, Boudreau M.A., and Davis J.W.
2013. Combinations of corn gluten meal, clove oils and sweep cultivation are ineffective for weed control in organic peanut production. Weed Technology
Knake E.L. and Slife F.W.
1965. Giant foxtail seeded at various times in corn and soybeans. Weeds
Kruidhof H.M., Bastiaans L., and Kropff M.J.
2008. Ecological weed management by cover cropping: Effects on weed growth in autumn and weed establishment in spring. Weed Research
Lee S., Clay D.E., and Clay S.A.
2014. Impact of herbicide tolerant crops on soil health and sustainable agriculture crop production. In Songstad D.D., Hatfield J.L., Tomes D.T. (eds). Convergence of Food Security, Energy Security, and Sustainable Agriculture. Springer-Verlag, Berlin Heidelberg. p. 211–236.
Liebman M. and Davis A.S.
2009. Managing weeds in organic farming systems: an ecological approach. In Francis C. (ed.). Organic Farming: The Ecological System. Agron. Monographs 54. ASA, Madison, WI. p. 173–195.
Nørremark M., Sorensen C.G., and Jorgensen R.N.
2006. Hortibot: feasibility study of a plant nursing robot performing weeding operations – Part III. ASABE Annual International Meeting Paper 067023, 14 p.
1988. Principles of weed threshold research. Weed Technology. 2:398–403.
Peigne J., Casagrande M., Payet V., David C., Sans F.X., Blanco-Moreno J.M., Cooper J., Gascoyne K., Antichi D., Barberi P., Bigongiali F., Surbock A., Kranzler A., Beeckman A., Willekens K., Luik A., Matt D., Grosse M., Hess J., Clerc M., Dierauer H., and Mader P.
2015. How organic farmers practice conservation agriculture in Europe. Renewable Agriculture and Food Systems
R Core Team
2014. R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria. Available at Web site http://www.R-project.org/
Radosevich S., Holt J., and Ghersa C.
1997. Weed Ecology: Implications for Management. 2nd ed. John Wiley & Sons., New York. p. 163–301.
Ritchie W.S., Hanway J.J., and Benson G.O.
1997. How a Corn Plant Develops. Special Report No. 48. (Revised). Iowa State University of Sciences and Technology, Ames, IA, Cooperative Extension Service. 21 p.
Steel R.G. and Torrie J.H.
1996. Principles and Procedures of Statistics: A Biometrical Approach. Third sub ed. McGraw-Hill Book Company, New York. 672 pp.
2005. A history of weed control in the United States and Canada. Weed Science
Van Der Weide R.Y., Bleeker P.O., Achten V.T.J.M., Lotz L.A.P., Fogelberg F., and Melander B.
2008. Innovation in mechanical weed control in crop rows. Weed Research
2015. Herbicides: history, classification and genetic manipulation of plants for herbicide resistance. Sustainable Agriculture Reviews
2008. Weed-Crop Competition: A Review Second edition. Blackwell Publishing, Ames, IA. Wiley Online Library. DOI: 10.1002/9780470290224 (verified 4 January 2017).