Abou-Hussein, S.D., Salman, S.R., Adel-Mawgoud, A.M.R., and Ghoname, A.A. 2005. Productivity, quality and profit of sole or intercropping green bean crop. Agronomy Journal 2: 151-155.
Aishi Rezai, A., Rezvani Moghadam, P., Khazai, H.R., and Mohammad Abadi, A.A. 2011. The effect of density and intercropping design (Mixed and Row) millet with soybean on its yield and yield components forage as statement Region of Mashhad. Iranian Journal of Field Crops Research 9(1): 50-59. (In Persian with English Summary)
Aliyu, B.S., and Emechebe, A.M. 2006. Effect inter-row mixing of sorghum with two varieties of cowpea on host crop yield in a Striga hermonthica infested field. African Journal of Agriculture Research 1: 24-26.
Atri, A. 1999. Study of competition, yield and yield components of intercropping maize and soy bean. Msc Thesis. Agriculture College, University of Tabriz, Iran. )In Persian with English Summary)
Boquet, D.J., Koohce, K.L., and Walker, D.M. 2003. Selected determinate soybean cultivar yield responses to row spacings and planting dates. Agronomy Journal 74: 136-138.
Caballero, R.C., Alzueta, L.T., Ortiz, M.L., Rodriguez, R.T., and Barro, C. 2001. Carbohydrate and protein fractions of fresh and dried common vetch in three maturity stages. Agronomy Journal 93: 1006-1013.
Caravetta, C.J., Cherney, J., and Johnson, H. 1990. Within row spacing influences on driver sorghum genotypes. I. morphology. Agronomy Journal 82: 206-210.
Carruthers, K., Prithiviraj, B.F.Q., Cloutier, D., Martin, R.C., and Smith, D.L. 2000. Intercropping corn with soybean, lupine and forages: yield component responses. European Journal of Agronomy 12: 103-115.
Chiftchi, V., Togay, N., Togay, Y., and Dogan, Y. 2006. The effects of intercropping sowing systems with dry bean and maize on yield components. Journal of Agronomy 5: 53-56.
Dahmardeh, M., Ghanbri, A., Syahsar, B.A., and Ramroudi, M. 2011. Evolution of forage yield and protein content of maize and cowpea intercropping. Iranian Journal of Field Crops Research 3: 633-642. )In Persian with English Summary)
Dunan, C.M., Westra, P., Moore, F., and Chapman, P. 1996. Modeling the effect of duration of weed competition, weed density and weed competitiveness on seeded, irrigated onion. Weed Research 36: 1259-1269.
Esechie, H.A. 1992. Effect of planting density on growth and yield of irrigated maize in batina coast region of Oman. Journal of Agricultural Science Cambridge 119: 165-169.
Eskandari, H. 2005. Study of intercropping maize and common bean for forage production. Msc Thesis. Agriculture College, University of Zabol, Iran. )In Persian with English Summary)
FAO. 2006. Food and Agriculture Organization of the United Nations. Available at http://www.faostat.fao.org/faostat/.
Fathi, Gh. 2006. Study of effect of pattern and plant density on light coefficient ratio, light absorption and grain yield of sweet corn (Hybrid SC 402). Journal of Agricultural Sciences and Natural Resources 12: 131-141. )In Persian with English Summary)
Ghanbari, A., and Lee, H.C. 2002. Intercropped field beans and wheat for whole crop forage: Effect of nitrogen on forage yield and quality. Cambridge Journal 138: 311-314.
Gheflati, M. 1995. Study of plant density on yield, yield component and quality of four varieties of sesame in Feizabad region. Msc Thesis. Agriculture College, Ferdowsi University of Mashhad, Iran.) In Persian with English Summary)
Ghosh, P.K., Manna, M.C., Bandyopadhyay, K.K., Ajay Tripathi, A.K., Wanjari, R.H., Hati, K.M., Misra, A.K., Acharya, C.L., and Subba Rao, A. 2006. Inter-specific interaction and nutrient use in soybean sorghum intercropping system. Agronomy Journal 98: 1097-1108.
Gustave, N.M., Jean, F., Ois, L., and Xavier, D. 2008. Shoot and root competition in potato/maize intercropping: Effects on growth and yield. Journal of Environmental and Experimental Botany 64(2): 180-188.
Heidari Sharifabad, H., and Dorri, M. 2002. Forage Crops (Tunicates). 1nd Ed. Moasese Tahghighate Jangalha VA Marate Press. 311 pp. (In Persian)
Hemayati, S., Siadat, A., and Sadeghzade, F. 2002. Evaluation of intercropping of two corn hybrids in different densities. Iranian Journal of Agriculture Sciences 25: 73-87. (In Persian with English Summary)
Hiebisch, C., Teiokagho, F., Chirembo, A.M., and Gerdner, F.P. 1995. Plant density and soybean maturity in soybean-maize intercropping. Agronomy Journal 87: 965-989.
Hossein-Panahi, F. 2009. Evaluation of yield, yield components and radiation use efficiency of intercropping maize and potato. MSc Thesis. Agriculture College, Ferdowsi University of Mashhad, Iran. )In Persian with English Summary)
Jokar, M., Ghanbari, A., and Ghadiri, H. 2006. Study of intercropping of maize and cucumber and effect of it’s on controlling weeds. Msc Thesis. Agriculture College, University of Zabol, Iran. )In Persian with English Summary)
Karadage, Y. 2004. Forage yields, seed yields and botanical compositions of some legume-barley mixtures under rain fed condition in semi- arid regions of Turkey. Asian Journal of Plant Sciences 3(3): 295-299.
Koocheki, A., Allahgani, B., and Najibnia, S. 2010. Evaluation of yield in maize and common bean intercropping. Iranian Journal of Field Crops Research 2: 605-611.) In Persian with English Summary)
Liebman, M., and Davis, A.S. 2000. Integration of soil, crop and weed management in Low- input farming systems. Weed Research 40: 27-47.
Lingaraju, B.S., Marer, B.S.S., and Chandrashekar, S.S. 2008. Studies on intercropping of maize and pigeon pea under rain fed conditions in northern transitional zone of Karnataka. Journal of Agricultural Science 21: 1-3.
Mazaheri, D., Movahedi dehnavi, M., Bankesaz, A., hosseinzade, A., and Ghanadha, M. 2001. Study of intercropping of maize and common bean. Research and Manufacturing 47: 47-51.
Mbah, E.U., Muoneke, C.O., and Dkpara, D.A. 2007. Effect of compound fertilizer on the yield and productivity of soybean – maize intercrop in south eastern Nigeria. Tropical and Subtropical Agroecosystem 7: 87-95.
Midya, A., Bhattacharjee, K., Ghose, S.S., and Banik, P. 2005. Deferred seeding of blackgram in rice field on yield advantages and smothering of weeds. Journal of Agronomy and Crop Sciences 191: 195-201.
Moadab Shabestari, M., and Mojtahedi, M. 2009. Crop Physiology. 2nd Ed. Markaze Nashre-e-Daneshghahi Press, Mashhad, Iran. 431 pp. (In Persian)
Mohler, R., and Liebman, M. 1987. Intercropping of barley and chickpea. Weed Research 40: 27-47.
Moll, R.H., and Kamparth, E.J. 1977. Effect of population density up on agronomic traits associated with genetic increases in yield of Maize. Agronomy Journal 69: 81-84.
Moosavian, S., Lorzade, Sh., Ebrahimpoor, F., and Abdonoor, Ch. 2011. Effect of nitrogen and mix ratio on grain yield and some morphological characteristics of maize and sunflower in intercropping in northern of Khoozestan region. Iranian Journal of Crop Researches 4: 708-716. )In Persian with English Summary)
Movadat, L. 2003. Intercropping of maize and cowpea and effect of it’s on controlling weeds. Msc Thesis. Agriculture College, University of Shiraz, Iran. )In Persian with English Summary)
Nakhzari Moghadam, A., Chaeichi, M., Mazaheri, D., Rahimian Mashhadi, H., Majnoon Hosseini, N., and Noorinia, A. 2010. Effect of intercropping of maize with mung bean on yield and land equivalent ratio and some characteristics of forage quality. Iranian Journal of Field Crops Research 40(4): 151-159. )In Persian with English Summary)
Ofori, F., and Stern, W.R. 1987. Relative sowing time and density of component crops in maize/cowpea intercrop system. Experimental Agriculture 23: 42-52.
Patel, B.R., Dilip, S., and Gupta, L.M. 1999. Effect of irrigation and intercropping on gram and mustard. Indian Journal of Agronomy 2: 283-284.
Philipp, A. 2009. What is sustainable agriculture? Empirical evidence of diverging views in Switzerland and New Zealand. Journal of Ecological Economics 68(6): 1872-1882.
Pilbeam, C.J., Okalebo, R., Simmonds, L.P., and Gathua, K.W. 1994. Analysis of maize-common bean intercrops in semi-arid Kenya. Journal of Agricultural Science Cambridge 123: 191-198.
Pirzad, A. 2000. Study of competition, yield and yield components of intercropping maize and soybean. Msc Thesis. Agriculture College, University of Tabriz, Iran. )In Persian with English Summary)
Poortaghi, N. 2004. Intercropping of maize and common bean. Msc Thesis. Agriculture College, University of Tabriz, Iran. )In Persian with English Summary)
Pop Zan, A.L., and Bahrami Nejad, S. 2001. Study on phenological stages of cumin, Yield and its components in Kermanshah, First National Conference of Cumin, Sabzevar p. 56-58.
Putnam, D.H., Herbert, J.J., and Vargas, A. 1985. Intercropped corn-soybean density studies. I. yield complementary and protein. Journal of Experimental Agriculture 21(3): 41-51.
Rahnama, A., and Poori, A. 1996. Study of effect of integrated different ratio of seed in intercropping barley (var. karoon) with berseem clover and barley with winter vetch. Information and Documents Center of Agriculture Operation Research Organization 4-110-12-73.
Remison, S.U., and Lucas, E.O. 1982. Effects of plant density on leaf area and productivity of two maize cultivars in Nigeria. Journal of Experimental Agriculture 18: 93-100.
Rezaei Chiane, A., Dabagh mohammadinasab, A., Shakiba, M.R., GHasemi golazani, K., and Aharizad, S. 2012. Study of some agricultural characteristic of maize in broad bean intercropping. Crop Sciences and Stability production Press. 2nd. Ed 21. No 1.
Safari, M. 2007. Study of intercropping of maize and cucurbit and effect of it’s on controlling weeds. MSc Thesis. Agriculture College, University of Zabol, Iran. )In Persian with English Summary)
Sarlak, S.H., and Aghaalikhani, M. 2009. Effect of plant density and intercropping ratio on yield of maize and common bean intercropping. Iranian Journal of Crops Research 4: 367-380.
Sekamatte, B.M., Ogenga-Latigo, M. and Russell-Smith, A. 2003. Effects of maize–legume intercrops on termite damage to maize, activity of predatory ants and maize yields in Uganda. Journal of Crop Protection 22(1): 87-93.
Sobkowicz, P. 2006. Competition between triticale and field beans in additive intercrops. Plant and Soil Environment 52: 42-54.
Tayefe Noori, M. 2004. Intercropping of maize and cowpea. MSc Thesis. Agriculture College, University of Tabriz, Iran. )In Persian with English Summary)
Tito-Kago. F., and Gardener, F.P. 1988. Response of maize to plant population density. II. Reproductive development, yield, and yield adjustments. Agronomy Journal 80: 935-940.
Tomar, J.S., Mackenzie, A.F., Mehuys, G.R., and Ali, I. 1988. Corn growth with foliar nitrogen, soil applied nitrogen, and legume intercrops. Agronomy Journal 80: 802-807.
Tsubo, M., Walker, S., and Ogindo, H.O. 2005. A simulation model of cereal-legume intercropping systems for semi-arid regions. Journal of Field Crops Research 93(1): 10-22.
Tuna, C. and Orak, A. 2007. The role of intercropping on yield potential of common vetch/oat cultivated in pure stand and mixtures. Journal of Agriculture Biological Science 2: 14-19.
Yang, G., Aiwang, D., Jingsheng, S., Fusheng, L., Zugui, L., Hao, L., and Zhandong, L. 2009. Crop coefficient and water-use efficiency of winter wheat/spring maize strip intercropping. Journal of Field Crops Research 111(2): 65-73.