Abayomi, Y. A. (2000) Influnence of height of maize variety on the productivity of intercropped maize (Zea mays L.) and cowpea (Vigna unguiculata L.) Walp), Department of crop production, Universuty of llorin, PMB 1515, llorin, Nigeria.
Ajeigbe, H. A., and Oseni, T. O. (2006) Effect of planting patter, crop variety and insecticide on the productivity of cowpea- cereal sysems in Northern Guinea Savanna of Nigeria. Journal of Food, Agriculture Environment. 4(1): 145-150.
Ayisi, K.K., and Mpangane, N. Z. (2004) Grain yield and symbiotic activity of cowpea cltivars grown in sole and intercropping systems with maize in the limpopo province of south Africa. New directions for a diverse plant: proceedings of the 4 th Intennationa crops congress. pp:152.
Azari, A., and Khajehpour, M. R. (2003) Effect of planting pattern on growth, development, yield components and grain yield of safflower, Koseh cultivation of spring. Journal of science and tecnologi of Agriculture and Natural Resources. 1: 165-155.
Barmaki, M. (2001) Title of thesis: Intercropping potato and Bardy in ardebil. University of tabriz, pp: 125.
Beech, D. F., and Norman, M. j. T. (2002) The effect of time of planting on y attributes of varieties of safflower. Australian Journal of basic Applied Sciences. 3: 140 -148.
7- Ehsanzadeh, P., and Zareian Baghdad-Abadi, A. (2003) Yield, Yield Components and Growth Characteristics of Two Safflower Genotypes Under Varying Plant Densities JWSS - Isfahan University of Technology. Journal of Agronomy & Crop Biotechnology.7(1): 129-140.
Farid, N., and Ehzanzade, p. (2006) yield and yield components of safflower and its response to treatment ghosting on inflorescences and leaves surrounding conditions of cultivation in the spring. Science and Technology Journal of Agriculture and Natural Resources.12: 189-196.
Gubbles, G. H., and Dedio, W. I. (2004) Intercropping of weat and safflower genotypes. Canadian journal plant sci. 3:521- 527.
Hosseinpanahi, F., Koocheki, A. Nassiri, M. and Ghorbani, R. (2009) Evaluation of yield component in potato/corn intercropping. Journal of Agricultural Science. 7:23-30.
Jamshidi, kh., Mazaheri, D. Majnoun hosseini, N. Rahimian, H and Peyghambari, A. (2008) Evaluation of yield in intercropping of maize and cow pea. Journal of Pajouhesh & sazandegi. 80:110- 118.
Javanshir, A., Dabagh-mohammadi nasab, A. Golipour, M. and Hamidi, A. (2000) Study of intercropping ecologi. University of mashad. pp: 102-123.
Liu, X., Jin, J. Herbert, S. J. Zhang, Q. and Wang, G. (2005) Yield components, dry matter, LAI and LAD safflower in Northeast China. American potato journal. 93:85- 93.
Mahmoudieh, R., and Ehsanzadeh, P. (2006) Effect of genotype and shading of inflorescence on grain yield and its components in field-grown safflower in isfahan. Journal of Agronomy & Crop Biotechnology. 37:157- 167.
Mazaheri, D. (1998) Mixed farming. Tehran university publication. pp: 262.
Negi, S. C., Shekhar, S. Siddique, S. M. and Smini, J. P. (1995) Effect of different planting density on tuber size and yield. Journal of Agricultural Science. 65:286-287.
Odhimbo, G. D., and Ariga, E. S. (2001) Effect of intercropping maize and Beans on striga incidence and grain yield. Seventh Eastern and southern Arica Regional Maize conference. 8:182-186.
18-Pirzad, A., Javanshir, A. Alyari, H. and Shakiba,M. (2003) Evaluate the performance and competitiveness in corn and soybean meal mixed cultures. Journal of Agricultural Science. 12(3): 99 - 111.
Seyyd- Sharifi, R., Javanshir, A. Ashgari, J. seyyd. Sharifi, R. Hassan- panah, D. (2006) Effect of Density and Row Intercropping Different Ratios on Yield and Yield Components Two Cultivars Wheat. Journal of Agricultural Sciences Islamic Azad University. 4(2):42-53.
Tolidy nejad, E., Mazaheri, D. Koocheki, A. and ghalavand, A. (2004) Study of maize and sunflower intercropping. Journal of Pajouhesh & sazandegi. 64:39- 45.