- Blackshaw, R.E. (2004). Application method of nitrogen fertilizer affects weed growth and competition with winter wheat. Weed Biology and Management, 4: 103-113.
- Blackshaw, R.E., Molnar, L.J. & Janzen, H.H. (2004). Nitrogen fertilizer timing and application method affect weed growth and competition with spring wheat. Weed Science, 52: 614-622.
- Carlson, H.L. & Hill, J.E. (1986). Wild oat (Avena fatua) competition with spring wheat: effects of nitrogen fertilization. Weed Science, 34: 29-33.
- Cathcart R.J. & Swanton, C.J. (2004). Nitrogen and green foxtail (Setaria viridis) competition effects on corn growth and development. Weed Science, 52:1039-1049.
- Corre-Hellou, G. &. Crozat, Y. (2005). N2 fixation and N supply in organic pea (Pisum sativum L.) cropping system as affected by weeds and pea weevil (Sitona lineatus L.). European Journal of Agronomy, 22: 449-458.
- David, C., Stephan, F.W. & Clarence, J.S. (1995). Influence of common ragweed (Ambrosia artemisifolia) time of emergence and density of white bean (Phaseolus vulgaris). Weed Science, 43: 375-380.
- Davis, A.S. (2006). When does it make sense to target the weed seed bank? Weed Science, 54: 558-565.
- Dehghanian, H., Nasrollahzadeh, S. & Shafagh-Kolvanagh, J. (2013). Effect of weed interference on performance of grain corn (Zea mays L.) at different plant densities. Journal of Sustainable Agriculture and Production Science, 23(2): 37-47. (In Farsi).
- Dordas, C.A., & Sioulas, C. (2009). Dry matter and nitrogen accumulation, partitioning, and retranslocation in Safflower (Carthamus tinctorius L.) as affected by nitrogen fertilization. Field Crops Research, 110: 35-43.
- Evans, S.P., Knezevic, S.Z., Lindquist, J.L. & Shapiro, C.A. (2003). Influence of nitrogen and duration of weed interference on corn growth and development. Weed Science, 51: 546-556.
- FAO. (2014). Food and Agriculture Organization of the United Nations. http://www.fao.org/faostat/en/#data/QC
- Fuladvand, M., Yadavi, A.R. & Movahedi-Dehnavi, M. (2014). Effect of plant density and nitrogen fertilizer management on agronomical characteristics of safflower under weed competition. Electronic Journal of Crop Production, 7(3): 163-181. (In Farsi).
- Husseini, S.A., Rashed-Mohassel, M.H., Nassiri-Mahallati, M. & Hajmohammadnia-Ghalibaf, K. (2009). The influence of nitrogen and weed interference periods on corn (Zea mays L.) yield and yield components. Journal of Plant Protection, 23: 97-105. (In Farsi).
- Izadi, F., Bagheri, A.R. & Miri, H.R. (2013). The effect of nitrogen and weeds interference on millet (Panicum miliaceum) yield and yield components. Journal of Plant Ecophysiology, 5: 85-94. (In Farsi).
- Izadi-Darbandi, E., Rashed-Mohassel, M.H. & Nassiri-Mahallati, M. (2003). Study of competitive effects of barnyardgrass (Echinochloa crus-galli) and redroot pigweed (Amaranthus retroflexus) on dry bean (Phaseolus vulgaris). Iranian Journal of Field Crop Research, 1: 13-22. (In Farsi).
- Jafarizadeh, Sh. & Modhej, A. (2012). Effect of Common Mallow (Malva spp.) competitiveness on grain yield and yield components in wheat under different levels of nitrogen. Iranian Journal of Field Crop Science, 42(4): 767-777. (In Farsi).
- Kristensen, L., Olsen, J. & Winer, J. (2008). Crop density, sowing pattern, and nitrogen fertilization effects on weed suppression and yield in spring wheat. Weed Science, 56: 97-102.
- Kropff, M.J. (1993). Mechanisms of weed competition for light. In: M.J. Kropff and H.H. Van Laar (Eds.), Modelig Crop-Weed Interactions. (pp. 33-61.), CAB International, Wallingford, UK.
- Lindquist, J.L., Barker, D.C., Knezevic, S.Z., Martin, A.R. & Walters, D.T. (2007). Comparative nitrogen uptake and distribution in corn and velvetleaf (AbutilonTheophrasti). Weed Science, 55: 102-110.
- Marttin S.G., Van Acker, R.C. & Friesen, L.F. (2001). Critical period of weed control in spring canola. Weed Science, 49: 326-333.
- Mennan, H. & Zandstra, B.H. (2005). Effect of wheat (Triticum aestivum) cultivars and seeding rate on yield loss from Galium aparine (cleavers). Crop Protection, 24: 1061-1067.
- Ministry of Agriculture Jahad. (2015). Agricultural statistics. Volume 1, Crop production; 2013-2014, 158 p. (In Farsi).
- Mirzaei, R. (2003). Investigation of competition between Zea mays and pigweed in different plant densities. M.Sc. Thesis. Mashhad Ferdowsi University. (In Farsi).
- Mohammaddoust-Chamanabad, H.R., Hemmati, Kh., Asghari, A. & Barmaki, M. (2013). Effect of nitrogen and weed interference on some agronomic traits, five cultivars wheat yield and yield components. Journal of Sustainable Agriculture and Production Science, 23(4): 131-140. (In Farsi).
- Mohammadi, G., Javanshir, A., Khooie, F.R., Mohammadi, S.A. & Zehtab-Salmasi, S. (2005). Critical period of weed interference in ckickpea. Weed Research, 45: 57-63.
- Monaco, T.J., Weller, S.C. & Ashton, F.M. (2002). Weed Science: Principles and Practices (4th ed.). United States of America, 671 p.
- Nasrollahzadeh, S., Zehtab Salmasi, S. & Shafagh-Kolvanagh, J. (2010). Effects of nitrogen rates on critical period of natural weed interference on barley yield (Hordeum vulgare L. Var. Makoei). Journal of Sustainable Agriculture and Production Science, 20(3): 97-112. (In Farsi).
- Sadeghi, H. & Kazemeini, A.R. (2011). Effect of crop residue management and nitrogen fertilizer on grain yield and yield components of two barley cultivars under dryland conditions. Iranian Journal of Crop Sciences, 13: 436-451. (In Farsi).
- Sadras, V.O., Bange, M.P. & Milroy, S.P. (1997). Reproductive allocation of cotton in response to plant and environmental factors. Annals of Botany,80: 75-81.
- Sepehri, A., Modarres-sanavi, S.A., Gharehyazi, B. & Yamini, Y. (2002). Effect of water deficit and different nitrogen rates on growth and development stages, yield and yield component of maize (Zea mays L.). Iranian Journal of Crop Sciences, 4(3): 184-195. (In Farsi).
- Shafagh-Kolvanagh, J., Javanshir, A., Zehtab-Salmasi, S., Moghaddam, M., Dabbagh-Mohammadi-Nasab, A. & Dastborhan, S. (2008a). Allelopatihic effects of some annual and perennial weed species on germination and seedling growth of soybean. Agricultural Science, 18: 73-80. (In Farsi).
- Shafagh-Kolvanagh, J., Zehtab-Salmasi, S., Javanshir, A., Moghaddam, M. & Dabbagh-Mohammadi-Nasab, A. (2008b). Effects of nitrogen and duration of weed interference on grain yield and SPAD (chlorophyll) value of soybean (Glycine max (L). Merrill). Journal of Food, Agriculture and Environment, 6: 368-373.
- Shafagh-Kolvanagh, J., Alami-Milani, M. & Azadmard-Talesh-Makaeel, A. (2015). Critical period of weed control in dragon’s head (Lallemantia iberica Fisch. et Mey). Journal of Sustainable Agriculture and Production Science, 25: 15-25. (In Farsi).
- Shrefler, J.W., Dusky, J.A., Shilling, D.G., Brecke, B.J. & Sanchez, C.A. (1994). Effects of phosphorus fertility on competition between lettuce (Lactuca sativa) and spiny amaranth (Amaranthus spinosus). Weed Science, 42: 556-560.
- Schmitt, A.M., Lamp, A.J., Randall, W.G., Orf, J. & Rehm, W.G. (2001). In-season fertilizer nitrogen applications for soybean in Minnesota. Agronomy Journal, 93: 983-988.
- Rezvani, H., Asghari, J., Ehteshami, S.M.R. & Kamkar, B. (2013). Study the response of yield and component yield of wheat cultivars in competition with wild mustard in Gorgan. Electronic Journal of Crop Production, 6: 187-214. (In Farsi).
- Togay, N., Tepe, I., Togay, Y. & Cig, F. (2009). Nitrogen levels and application methods affect weed biomass, yield and yield components in Tir wheat. New Zealand Journal of Crop and Horticultural Science, 37: 105-111.
- Vila, M., Williamson, M. & Lonsdale, M. (2004). Competition experiments on alien weeds with crops: lessons for measuring plant invasion impact? Biological Invasions, 6:59-69.
- Warwick, S.I., Beckie, H.J., Thomas, A.G. & Mcdonald, T. (2000). The biology of Canadian Weeds. 8. Sinapis arvensis. L. (updated). Canadian Journal of Plant Sciences, 55(1): 171-183.
- Zadoks, J.C., Chang, T.T. & Konzak, C.F. (1974). A decimal code for the growth stages of cereals. Weed Research, 14: 415-421.
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