1- Altland J. 2001. Water quality affects herbicide efficacy. Available at www.oregonstate. edu. (visited 25 November 2010)
2- Berger B.M. and Wolfe N.L. 1996. Hydrolysis and biodegradation of sulfonylurea herbicides in aqueous buffer systems and anaerobic water sediment systems: assessing fate pathways using molecular descriptors. Environmental Toxic Chemical, 15:1500–1507.
3- Bernards M.L., Thelen K.D. and Penne D. 2005. Glyphosate efficacy is antagonized by manganese. Weed Technology, 19:27-34.
4- Buhler D.D. and Burnside O.C. 1983. Effect of water quality, carrier volume, and acid on glyphosate phytotoxicity. Weed Science, 31:163-169.
5- Burgess P. 2003. Quality of pesticide spray water. Available at www.agrapoint.ca. (visited 5 August 2011)
6- Caldwell J. 2007. Hard water can hinder chemical efficacy. Agriculture Online News and Features Editor.
7- Elahifard E. 2005. Investigation on Phalaris minor resistance to Aryloxyphenoxypropionate herbicides. Thesis of MSc. Agricultural College, Ferdowsi University of Mashhad. (in Persian with English abstract)
8- Fathi Gh. and Arjmand A. 1999. Herbicides and plant physiology (Translated). Jahade Daneshgahi Mashhad Press. 172 p.
9- Green J.M. and Cahill W.R. 2003. Enhancing the biological activity of nicosulfuron whit pH adjusters. Weed Technology, 17:338-345.
10- Green J.M. and Hale T. 2005. Increasing and decreasing pH to enhance the biological activity of nicosulfuron. Weed Technology, 19:468-475.
11- Hajmohammadnia Ghalibaf K., Rashed Mohassel M.H., Nassiri Mahallati M. and Zand E. 2011. Dose response of barnyardgrass (Echinochloa crus-galli L.) and velvetleaf (Abutilon theophrasti Medicus.) to glyphosate and nicosulfuron under greenhouse condition. Journal of Plant Protection, 25(2): 202-213. (in Persian with English abstract)
12- Heidekamp A.J. and Lemley A.T. 2005. Hard water. Water quality program, College of human ecology, Cornell University.
13- Holm F.A. and Henry J.L. 2005. Water quality and herbicides. Available at www.gov.sk.ca. (visited 11 October 2009)
14- Istv̕an D. and Endre M. 2009. Efficacy of herbicides influenced by spray carrier water pH and hardness. Journal of Agricultural Science, Debrecen. Pp. 141-146.
15- Matocha M.A. and Senseman S.A. 2007. Trifloxysulfuron dissipation at selected pH levels and efficacy on palmer amaranth (Amaranthus palmeri). Weed Technology, 21:674-677.
16- McMullan P.M. 1996. Grass herbicide efficacy as influenced by adjuvant, spray solution pH, and ulteraviolet light. Weed Technology, 10:72-77.
17- Mekki M. and Leroux G.D. 1994. Activity of nicosulfuron, rimsulfuron, and their mixture on field corn (Zea mays), soybean (Glycine max), and seven weed species. Weed Technology, 8:436-440.
18- Mousavi S.K., Zand E. and Saremi H. 2005. Physiological function and application of herbicides. Zanjan University Press. 286 p.
19- Nalewaja J.D. and Matysiak R. 1993. Spray carrier salts affect herbicide toxicity to kochia (Kochia scoparia). Weed Technologt, 7:154-158.
20- Nalewaja J.D., Woznica Z. and Manthey F.A. 1990. Sodium bicarbonate antagonism of 2,4-D amine. Weed Technology, 4:588-591.
21- Peterson H.G. 1999. Farm chemical spraying and mixing water quality. Available at www.agr.gc.ca. (visited 11 August 2010)
22- Petroff R. 2000. Water quality and pesticide performance. Available at www.scarab.msu.montana. edu. (visited: 11 August 2010)
23- Rao V.S. 2000. Principles of Weed Science, second ed. Science Publishers, Inc, New Hampshire.
24- Sensmen S.A. 2007. Herbicide Handbook. (9th ed). Weed Science Society of America, 458p.
25- Steinbauer G.P. and Grigsby B. 1959. Methods of obtaining field and laboratory germination of seeds of bindweeds, lady's thumb and velvetleaf. Weeds, 7:41-46.
26- Sung S.S., Leather G.L. and Hale M.G. 1987. Development and germination of barnyardgrass (Echinochloa crus-galli) seeds. Weed Science, 35:211-215.
27- Terra B.R.M., Martiny A.R. and Lindquistz J.L. 2007. Corn-velvetleaf (Abutilon theophrasti) interference is affected by sublethal doses of postemergence herbicides. Weed Science, 55:491-496.
28- Vencill V.K. 2002. Herbicide Handbook. 8th ed. Champaign, IL: Weed Science Society of America, Pp. 216-217.
29- Vicari A., Zimdahl R.L., Cranmer B.K., and Dinelli G. 1996. Primisulfuron and rimsulfuron degradation in aqueous solution and adsorption in six Colorado soils. Weed Science, 44:672–677.
30- Waltz A.L., Martin A.R., Roeth F.W. and Lindquist J.L. 2004. Glyphosate efficacy on velvetleaf varies with application time of day. Weed Technology, 18:931-939.
31- Webster T.M., Hanna W.W. and Mullinix Jr. B.G. 2004. Bermudagrass (Cynodon spp.) dose-response relationships with clethodim, glufosinate and glyphosate. Pest Management Science, 60:1237-1244.
32- Zand E., Nosrati, I., Hajmohammadnia Ghalibaf K. and Jabbari, H. 2014. Water quality effect on herbicides performance. p. 385-414. In Zand E., Mousavi S.K., and Heidari A. 2014. Herbicides and their applications (2nd edition by fundamental changes). Jahade Daneshgahi Mashhad Press. 552p.