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Effect of Amount and Methods of Nitrogen and Phosphorus Fertilizer Applications in Wheat weed Density and Growth | ||
| دانش علفهای هرز ایران | ||
| Article 7, Volume 8, Issue 2, November 2012, Pages 79-91 PDF (270.17 K) | ||
| Document Type: Research Paper | ||
| Authors | ||
| Ebrahim Ezadi Darbandi; mohammad Rashed Mohassel; Masoud Azad | ||
| Abstract | ||
| To investigate effect of the amount and the methods of nitrogen and phosphorus application on weed management of wheat, an experiment was performed as factorial, based on randomised complete blocks design with three replications at the Research Farm, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran during 2009. Treatments included nitrogen at (100, 200, and 300 kg ha-1 phosphorus at 100, and 200 kg ha-1 and their application methods (Broadcast and Band application). Phosphorus source for fertilization was triple superphosphate applied soil incorporated before wheat sowing and N2 source was urea: 50% applied pre plant and 50% at shooting stage. The results showed that fertilizer application methods significantly affected wheat yield and weed biomass and density (p≤0.01). Phosphorus and nitrogen band application method reduced weed biomass and weed density by 54% and 34% respectively and increased wheat biomass and seed yield by 21% and 36% compared to broadcast application method. The interaction effects of nitrogen and phosphorus application rate and also the interaction of phosphorus and nitrogen application methods showed that the fertilizer band application × 200 kg ha-1 phosphorus rate and 300 kg ha-1 nitrogen rate were the best treatment in wheat yield improvement and reducing weeds. These results indicated that by modifying fertilizer application methods and changing the amounts of their application, we may improve fertilizer use efficiency and weed management in wheat. | ||
| Keywords | ||
| Competition of weeds; fertilizer application methods; plant nutrient; wheat yield | ||
| References | ||
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Andreason, C., Streibig, J. C. and Hass, H. 1991. Soil properties affecting the distribution of 37 weed species in Danish fields. Weed Res. 31:181-187. Banks, P. A., Santelmann, P. W. and Tucker, B. B. 1976. Influence of long term soil fertility treatments on weed species in winter wheat. Agron J. 68: 825-828. Blackshaw, R. E. 2004. Application method of nitrogen fertilizer affects weed growth and competition with winter wheat. Weed Biol and Manag. 4:103-113. Blackshaw, R. E. 2005. Nitrogen fertilizer, manure and compost effects on weed and competition with spring wheat. Agron J. 97: 1672-1621. Blackshaw, R. E. and Molnar, L. J. 2004. Nitrogen fertilizer timing and application method affect growth and competition with spring wheat. Weed Sci. 52:416- 427. Blackshaw, R. E., Molnar, L. J. and Larney, F. J. 2004a Fertilizer, manure and compost effects on weed growth and competition with winter wheat in western Canada. Crop Pro. 24:971-980. Blackshaw, R. E., Brandt, R. N. Janzen, H. H., Entz, T. 2004.b. Weed species response to phosphorus fertilization. Weed Sci. 52:406-412. Blackshaw, R. E., Brandt, R. N., Janzen, H. H., Entz, T., Grant., C. A. and Derksen, D. A. 2003. Differential response of weed species to added nitrogen. Weed Sci. 51:532-539. Blackshaw, R. E., Semach, G. and Janzen, H. H. 2002. Nitrogen uptake in weeds and wheat. Weed Sci. 50: 634-641. Casper, B. B. and Jackson, R. B. 1997. Plant competition underground. Annu Rev Syst. 28:545-570. Evance, S. P., Kenzevic, S. Z., Lindquist, J. L. and Shapiro, C. A. 2003. Influence of nitrogen and duration of weed interference on corn growth and development.Weed Sci. 51:546-556. Kazemini, S. A. and Ghadiri, H. 2007. Effect of weed and nitrogen on wheat (Triticum aestivum) growth and yield. Iran. Crop Sci. 38: 377-385. (In Persian with English Summary) Kelley, K. W. and Sweeney, D. W. 2005. Tillage and urea ammonium nitrate fertilizer rate and placement affects winter wheat following grian sorghom and soybean. Agron. J. 97:690-697. Koocheki, A. and Khajeh Hosseini, M. 2008. Modern agronomy hand book. Jahad daneshghahi. Mashhad. Iran. 704 p. (In Persain with english summary) Liebman, M. and Davis, A. S. 2000. Integrated of soil, crop and weed management in low external input farming systems. Weed Res. 40:27-47 Miyazawa, K., Tsuji, H., Yamagata, M., Nakano, H. and Nakamoto,T. 2004. Response of weed flora to combination of reduced tillage, herbicide application and fertilization practices in a 3- year crop rotation. Weed Boil and Manag. 4:24-34. Moradi, M. R., Siadat, S. A., Fathi, Gh., Zand, E. and Alamisaeid, E. 2009. Effect of nitrogen and herbicide levels on wheat (Triticum aestivum) competition ability against wild mustard (Sinapis arvensis). EJCP. 2(3): 135-150. (In Persian with English Summary) Mousavi, S. K., Feizian, M. and Ahmadi, A. 2009. Effect of nitrogen application on wheat (Triticum aestivum) growth in Lorestan. J. of Water Soil. 23: 136-147. (In Persian with English Summary) Santos, B. m., Duskey, J. A., Stall,W. M., Shilling, D. G. and Bewick,T. A. 1998. Phosphorus effects on competitive interactions of smooth pigweed (Amaranthus hybridus) and common purslane (Portulaca oleracea) with lettuce (Lactuca sativa). Weed Sci. 46:307-312. Wahle, E. A. and Masiunas, J. B. 2003. Comparision of nitrogen use by two population densities of eastern blach nightshade (Solanum ptycanthum). Weed Sci. 51:394-401. Zimdahl, R. L. 1999. Fundamental of weed science. Academic press. Inc. 460 p. | ||
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