Alizadeh KH, 2011. Evaluation of some legume crops intercropping with barley under rain fed conditions. Dry land agricultural research institute. Code: 88/1079.
Asghari- Meidani J, 2010. Comparison of quantitative and qualitative yield of Vetch and Barley mono culture and their mixed in cereal and forage rotation. Final report, Dry land agricultural research institute. Code: 87/215.
Atis I, Kokten K Hatipoglu R, Yilmaz S, Atak M and Can E, 2012. Plant density and mixture ratio effects on the competition between common vetch and wheat. Australian Journal of Crop Science, 6: 498–505.
Blake GR, and Hartge KH, 1986. Bulk density. Pp. 363-375. In: Klute A (Ed). Methods of Soil Analysis Part 1, Physical and Mineralogical Methods. 2nd ed. American Society of Agronomy, Madison, WI.
Boudreau MA, 2013. Diseases in intercropping systems. Annual Review of Phytopathology, 51: 499-519.
Bremmer JM and Mulvancey CS, 1982. Total nitrogen. Pp. 599-622. In: Page AL, Miller RH and Keeney DR (ed.). Method of Soil Analysis. Part II. Aragon Monogram, 9, ASA and SSSA, Madison, WI.
Caballero R, Goicoechea EL, Hernaiz PJ, 1995. Forage yields and quality of common vetch and oat sown at varying seeding ratios and seeding rates of common vetch. Field Crops Research, 41: 135–140.
Çhelik I, 2011. Effects of tillage methods on penetration resistance, bulk density and saturated hydraulic conductivity in a clayey soil conditions. Journal of Agriculture Science, 17: 143–156.
Chen C, Westcott M, Nrill K, Wichman D and Knox M, 2004. Row configuration and nitrogen application for barley-pea intercropping in Montana. Agronomy Journal, 96: 1730-1738.
Cho B and Daimon H, 2008. Effect of hairy vetch incorporated as green manure on growth and N uptake of sorghum crop. Plant Production Science. 11: 211-216.
Contreras- Govea FE, Muck RE, Armstrong KL and Albrecht KA, 2009. Nutritive value of corn silage in mixture with climbing beans. Animal Feed Science and Technology, 53: 37-49.
Eskandari H and Javanmard A, 2014. Evaluation of forage yield and quality in intercropping patterns of Maize (Zea mays) and Cow pea (Vigna sinensis). Journal of Agricultural Science and Sustainable Production, 23: 101-110.
Hesse PR, 1971. A text book of soil chemical analysis. John Murray, London.
Idaresit A, Ernest E and Etebom W, 2016.Assessment of groundnut/maize intercropping system on soil bulk density and volumetric moisture content grown in typic paleudult soils of Southeastern
Nigeria. Direct Research Journal of Agriculture and Food Science, 4: 228-232.
Kadziuliene Z, Sarunaite L and Deveikyte I, 2011. Effect of pea and spring cereals intercrop in the organic farming systems. Agronomy Research, 7 (2): 606-611.
Karagic D, Vasiljevic, S, Katic S, Mikic A, Milic D, Milosevic B and Dusanic N, 2011. Yield and quality of winter common vetch (Vicia sativa L.) haylage depending on sowing method.
Biotechnology in Animal Husbandry, 27: 1585–1594.
Karuma A, Mtakwa P, Amuri, N Gachene C and Gicheru P, 2014 .Tillage effects on selected soil physical properties in a maize-bean intercropping system in Mwala district, Kenya. International Scholarly Research Notices, 2014: 1-12.
Kursuvan A, Kaplan M and Nazli A, 2014. Intercropping of hungarian vetch and barley under different plant varieties and mixture rates. Legume Researches, 37: 590-599.
Lameie hervani G, 2012. Evaluation of mono culturing and intercropping three annual forage legumes with barley under rain fed conditions. Final report, Dry land agricultural research institute. Code: 89/664.
Li Y, Ran W, Zhang R, Sun S and Xu G. 2009. Facilitated legume nodulation, phosphate uptake and nitrogen transfer by arbuscular inoculation in an upland rice and mango bean intercropping system. Plant and Soil, 315: 285-296.
Lithourgidis AS, Dhima KV, Vasilakoglou IB, Dordas CA and Yiakoulaki MD, 2007. Sustainable production of barley and wheat by intercropping common vetch. Agronomy for Sustainable Development, 27: 95-99.
Lithourgidis AS, Vlachostergios DN, Dordas CA and Damalas CA, 2011. Dry matter yield, nitrogen content, and competition in pea-cereal intercropping systems. European Journal of Agronomy, 34: 287-294.
Mohanty A, Mishra KN, Roul PK, Dash SN and Panigrahi A, 2015. Influence of conservation agriculture production system on soil organic carbon, bulk density and water stable aggregates in a tropical rainfed agro ecosystem. Environmental and Engineering Consultants, 21(4): 111-114.
Nakhzari-Moghaddam A, 2013. The yield and forage quality of intercropping barley and mustard in different planting dates. Electronic Journal of Crop Production, 5 (4): 173-189.
Nelson DW and Sommers LE, 1982. Total carbon, organic carbon and organic matter. Pp. 539-579. In: Page AL (Ed). Method of Soil Analysis, Chemical and Microbiological Methods, Part 2. ASA and SSSA, Madison, WI.
Olsen SR and Sommers LE, 1982. Phosphorus. In: Methods of Soil Analysis, part 2, page. A.L., R.H. Miller and R.D. Keeney. Soil Science Society of American Journal. pp. 404.
Pelzer E, Bazot M, Makowski D, Corre- Hellou G, Naudin C, Al rifai M, Baranger E, Bedoussac L, Biarnes V, Boucheny P, Carrouee B, Dorvillez D, Foissy D, Gailard B, Gouchard L, Mansard MC and Oman B, 2012. Pea- wheat intercrops in low- input conditions combine high economic performances and low environmental impacts. European Journal of Agronomy, 40: 39-53.
Regehr A. 2014. Evaluation of maize and soybean intercropping on soil quality and nitrogen transformations in the Argentine Pampa. A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Master of Environmental Studies in Environment and Resource Studies. Waterloo, Ontario, Canada.
Sadeghpour A and Jahanzad E, 2012. Seed yield and yield components of intercropped barley (Hordeum vulgare L.) and annual medic (Medicago scutellata L.). Australian Journal of Agriculture Engineering, 3: 47–50.
Sadeghpour A, Jahanzad E, Esmaeili A, Hosseini MB and Hashemi M, 2013. Forage yield, quality and economic benefit of intercropped barley and annual medic in semi-arid conditions: Additive series. Field Crop Research, 148: 43-48.
Sarunaite L, Deveikyte I, Semaskiene R and Kadziuliene Z, 2009. The influence of grain legumes on spring wheat yield formation and phytosanitary state. Agronomy Research, 7(1): 465-470.
Strydhorst SM, King JR, Lopetinsky KJ and Neil Harker K, 2008. Forage potential of intercropping barley with faba bean, lupin, or field pea. Agronomy Journal, 100: 182-190.
Yilmaz S, Ozel A, Atak M and Erayman M, 2014. Effects of seeding rates on competition indices of barley and vetch intercropping systems in the Eastern Mediterranean. Turkish Journal of Agriculture and Forestry, 39: 135-143.