Abouziena HF, El-Karmany MF, Singh M and Sharma SD, 2007. Effect of nitrogen rates and weed controltreatments on maize yield and associated weeds in sandy soils.Weed Technology, 21:1049-1053.
Ahmed, H. 1991. Effect of weed on growth of garlic (Allium sativum L.). Weed Science Abstract. 39(6): 230-231.
Akbari, GH. A, Iran nezhad, H,. Hossein zadeh, K,. Zand, E,. Hejazi, A and Bayat , A, A,. 2010. Effect of wild mastard (Sinapis arvensis L.) Interference on yield and growth indexes of canola (Brassica napus l.)
. Iranian Journal of field Crop Sciences. 41(2):329-343. (in Persian).
Anderson, R. L. 2000. Cultural systems to aid weed management in semiarid corn (Zea mays). Weed Technol. 14:630–634.
Boydston, R.A., and M.D. Seymour. 2002. Volunteer potato (Solanum tuberosum) control with herbicides and cultivation in onion (Allium cepa L.). Weed Technology. 16: 620 – 626.
Challaiah O., Burnside C., Wicks G.A. and Johanson V.A. 1986. Competition between winter wheat (Triticum aestivum L.) cultivars and downy brome (Bromus tectorum). Weed Science, 34: 689-693.
Cooper, R.L. 1977. Response of soybean cultivars to narrow rows and planting rates under weed-free conditions. Agronomy Journal. 69: 89-92.
FAOSTAT. 2016. Crop production Statistics. Available on http://www.fao.org/faostat/en/#data/QC. Accessed: August 20, 2018.
Ghosheh, H.Z. 2004. Single herbicide treatments for control of broadleaved weeds in onion (Allium cepta L.). Crop Protection. 23: 539 – 542.
Ghosheh, H.Z. and Al-Shannag, H. K.. 2000. Influence of weeds and onion thrips, Thrips tabaci (Thysanoptera: Thripidae), on onion bulb yield in Jordan. Crop Protection. 19:175 – 179.
Gilreath, J. P., Santos, B. M., Gilreath, P. R. and Maynard, D.N. 2008. Efficacy of early post-transplant herbicides inleeks (Allium porrum L.). Crop Protection. 27: 847-850.
Haj Seyed Hadi , M, R,. Noor mohamadi, GH,. Nasiri mahallati, M,. Rahimian, H and Zand, A,. 2010. The potato dry matter change in response to weeds interference
. Journal of Plant and Ecosystem. 5 (20):87-103. (in Persian).
Honyfer, J. and Egli, D.B. 1993. Shade induced changes in flower and pod number and flower and fruit abscission in soybean. Agronomy Journal. 85: 221-225.
Komeyli, H, R,. Rashed mohasel, M, H,. Ghodsi, M and Zare feyzabadi, A,. 2006. Evaluation of drought tolerance of new wheat genotypes under water stress conditions. Iranian Journal of Field Crops Research. 4(2): 301-314. (in Persian).
Kropff, M.J. and W. Joije. 1987. Competition between a sugar beet and population of Chenopodium album L. and Stellaria media L. Netherlands Agriculture Science. 35: 525– 528.
Ladent, J. F. 2003. Morphology and yield inwinter wheat grown in high yieldingcondition. Crop Science. 42: 1107 -1120.
Lindquist JL and Mortensen DA (1999) Ecophysiological characteristics of four maize hybrids and Abutilon theophrasti. Weed Research. 39: 271-285.
Maknali, A. and P. Shimi. 2010. Evaluating effect of different herbicides on weed control and yield on
onion (Allium cepa L.). The Proceedings of 3rd Iranian Weed Science Congress. Babulsar. Volume 2. 321 – 324.
Monaco TJ, Weller SC and Ashton FM (2002) Weed Science: principles and practices. 4th Ed. John Wiley and Sons, Inc, New York, 672 p.
Murphy, C., Lemerle, D., Jones, R. and Harden, S. 2002. Use of density to predict crop yield loss between variable seasons. Weed Research. 42: 377-384.
Omid beygi, R,. 2015. Production and processing of medicinal plants with a complete overview. first volume. Eighth edition. Astan Quds Razavi Publishing House. 348 pages. (in Persian).
Orcutt DM and Nilson ET (2001) The Physiology of Plants under Stress. Soil and Biotic Factors. Virginia Polytechnic Institute and State University. 684 p
Patrick, J. and M. Tranela. 2003. Variation in soybean (Glycine max (L.) merr.) interference among common cocklebur (Xanthium strumarium L.) accessions. Crop Protection. 22: 375 – 380.
Poggio, S. L., Satorre, E. and Fuente, E. 2004. Structure of weed communities occurring in pea and wheat crops in the Rolling Pampa (Argentina). Agriculture Ecosystems and Environment. 103(1): 225-235.
Rahman, H. U., Khattak, A. M., Sadiq, M., Ullah, K., Javaria, S. and Ullah, I. 2012. Influence of different weed management practices on yield of garlic crop. Sarhad Journal of Agricultural. 28(2): 213-218.
Rahman, H. U., Ullah, K., Sadiq, M., Ullah Khan, H., Azim Khan, M. and Khattak, A. M. 2011. Impact of time of weed removal on garlic (Allium sativum
L.) Yield. Pakistan Journal of Weed Sciences Research
. 17(2): 151-159.
Rajcan I. and C. J. Swanton. 2001; Understanding maize- weedcompetition: Resource competition, light quality and whole plant. FieldCrop Res. 71: 139-150.
Rashed mohasel, M,. 2006. Basics of weed management. Ferdowsi University of Mashhad Publication. 566 pages. (in Persian).
Saleh rastin, N., 2001. Biological fertilizers and their role in achieving sustainable agriculture. Proceedings of the necessity of industrial production of biofertilizers in the country. Agricultural Education Publishing. 1-54. (in Persian).
Sharma, A.K. 2002. Biofertilizers for Sustainable Agriculture. Agrobios Publications- India. 300 pages.
Swanton, S., M. Buhler, D. D. Forcella, F. Gunsolus, and R. P. King. 1994. Estimation of crop yield loss due to interference by multiple weed species. Weed Science. 42: 103-109.
Tavakoli hashtchin, T,. 2003. Agricultural machinery mechanics. Salekan Publishing. 520 pages. (in Persian).
Tripathi, S.N., Marker, Sh., Pandey, P., Aiswal, K.K.J. and Tiwari, D.K. 2011. Relationship between some morphological and physiological traits with grain yield in bread wheat (Triticum aestivum L.). Trends in Applied Sciences Research. 6: 1038-1045.
Watson P.R., Derksen D.A., Van Acker R.C. and Blrvine M.C. 2002. The contribution of seed seedling, and mature plant traits to barley cultivar competitivness against weeds. Proceedings of the National Meeting- Canadian Weed Science Society, 14: 49-57.
Yin, Y., Allen, H. E., Li, Y., Huang, C. P. and Sanders, P.F. 1996. Adsorption of mercury (II) by soil: effects of pH, chloride, and organic matter. American Society of Agronomy. 25: 837-844.