Akhavan S and Shabanpour M, 2017. The effect of soil compaction on ammonium and nitrate concentrations and wheat nitrogen uptake in two different soils. Water and Soil Science 27:199-212. (In Persian with English abstract)
Azimzade M, Kochaki A and Bala M, 1996. The effect of different tillage methods on bulk density, porosity, soil moisture content and wheat yield in dry land conditions of Iran. Journal of Crop Sciences 3:209-224. ((In Persian with English abstract)
Bellido LL, Fuentes M, Castillo JE, Lopes FJ and Fernandez EJ, 1996. Long time tillage, crop rotation and nitrogen fertilizer effect on wheat yield under rain fed Mediterranean condition. Agronomy Journal 88: 783-791.
Bradford JM, 1986. Penetrability. Pp. 463-478 In: Klute A, (ed.), Methods of Soil Analysis: Part 1. Physical and Mineralogical Methods, American Society of Agronomy and Soil Science Society of America, Madison, Wisconsin.
Buntin GD, Raymer PL, Bednarz CW, Philips DV and Baird RE, 2002. Winter crop, tillage and planting date effects on double-crop cotton. Journal of Agriculture 94: 273-280.
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, American Society of Agronomy and Soil Science Society of America, Madison, Wisconsin.
Comia A, Stenberg M, Nelson P, Rydberg T and Hakansson L, 1993. Soil and crop responses to different tillage system. Soil and Tillage Research 29: 335-355.
De Vita P, Di Paolo E, Fecondo G, Di Fonzo N and Pisante M, 2007. No tillage and conventional tillage effects on durum wheat yield, grain quality and soil moisture content in southern Italy. Soil and Tillage Research 92: 69-78.
Douglas CL, Wilkins DE and Churchill DB, 1994. Tillage, seed size and seed density effects on performance of soft white winter wheat. Journal of Agronomy 86: 707-711.
Ferreras LA, Costa JL, Garsia FO and Pecorari C, 1999. Effect of no-tillage on some soil physical properties of a structural degraded Petrocalcic Paleudoll of the southern Pampa of Argentina. Soil and Tillage Research 54: 31-39.
Gee GW and Or D, 2002. Particle size analysis. Pp. 255-293 In: Dane JH and Topp GC, (ed.), Methods of Soil Analysis, Part 4, Physical Methods, Soils Science Society of America, Madison, Wisconsin.
Glinski J and Lipec J, 1990. Soil Physical Conditions and Plant Roots. CRC press, Inc., Boca, Florida.
Hajabbasi MA, Mirlohi AF and Sadrarhami M, 2002. Tillage effects on some physical properties of soil and maize yield in Lavark research farm. Journal of Water and Soil Science 3: 13-24. (In Persian with English abstract).
Kasper M, Buchan GD, Mentler A and Blum WEH, 2009. Influence of soil tillage systems on aggregate stability and distribiution of C and N in different aggregate fractions. Soil and Tillage Research 105: 192-199.
Kemper WD and Rosenau RC, 1986. Aggregate stability and size distribution. Pp. 425-441 In: Klute A, (ed.), Methods of Soil Analysis: Part 1. Physical and Mineralogical Methods, American Society of Agronomy, Soil Science Society of America, Madison, Wisconsin.
Lipiec J, Kus J, Slowinska-Jurkiewicz A and Nosalewicz A, 2006. Soil porosity and water infiltration as influenced by tillage methods. Soil and Tillage Research 89: 210-220.
Mahbobi AA, 1994. Conservation tillage and sustainable agriculture. Third Congress of Agronomy and Plant Breeding, 4 September, University of Tabriz. (In Persian with English abstract).
Mapa RB, Gream KE and Santo L, 1996. Temperature variability of soil hydraulic properties with wetting and drying subsequent to tillage. Soil Science Society of America Journal 50: 1133-1138.
Mclean EO, 1982. Soil pH and lime requirement. Pp.199-223 In: Page AL, (ed.), Methods of Soil Analysis. Part 2. Chemical and Microbiological Properties, American Society of Agronomy and Soil Science Society of America, Madison, Wisconsin.
Meek BD, Deter WR, Ralph DR, Rachel ER and Carter LM, 1990. Infiltration rate as affected by an alfalfa and no-tillage cotton cropping system. Soil Science Social of America Journal 54:505-508.
Milton D, Horn R, Reinert DJ and Reichert JM, 2009. Aggregate stability as affected by short- and long-term tillage systems and nutrient source of a hapludox in southern Brazil. Revista Brasileira de Ciência do Solo 33:767-777.
Moges A and Holden NM, 2008. Soil fertility in relation to slop position and agricultural land use. Environmental Management 42: 453-763.
Mosadeghi MR, Afyuni A and Hemmat A, 2001. The effect of two tillage methods on some soil physical properties in North Carolina and its comparison with Iranian conditions. 7th Iranian Soil Science Congress, 27-30 August, Shahrekord University. (In Persian with English abstract).
Mrabet R, Saber N, El-Brahli A, Lahlou S and Bessam F, 2001. Total, particulate organic matter and structural stability of a Calcixeroll soil under different wheat rotations and tillage systems in a semiarid area of Morocco. Soil and Tillage Research 57:225-235.
Nelson, DW and Sommers LE, 1982. Total carbon, organic carbon and organic matter. PP 539-577 In: Page AL, (ed.), Methods of Soil Analysis. Part 2. Chemical and Microbiological Properties, American Society of Agronomy and Soil Science Society of America, Madison, Wisconsin.
Norbakhshian J, Morshedi A, Sadeghi A, Raeesi L and Jafarzade S, 2001. Influence of tillage and seed rate on quantitative and qualitative yield of Iranian clover forage. Chaharmahal & Bakhtiari Agricultural Research Center for Natural Resources Publications. (In Persian).
Ossible M, Crookston RK and Larson WE, 1992. Sub surface compaction reduce the root and shoot growth and grain yield of wheat. Agronomy Journal 84: 34-38.
Osunbitan JA, Oyedele DJ and Adekalu KO, 2005. Tillage effects on bulk density, hydraulic conductivity and strength of loamy sand soil in southwestern Nigeria. Soil and Tillage Research 82: 57-64.
Pinheiro EFM, Pereira MG and Anjos LHC, 2004. Aggregate distribution and soil organic matter under different tillage systems for vegetable crops in a red Latosol from Brazil. Soil and Tillage Research 77:79-84.
Singer JW, Kohler KA, Liebman MT, Richard L, Cambardella CA and Buhler DD, 2004. Tillage and compost effect yield of corn, soybean, and wheat and soil fertility. Agronomy Journal 96: 531-537.
Tarkalsona DD, Hergertb GW and Cassman KG, 2006. Long term effects of tillage on soil chemical properties and grain yields of a dry land winter wheat, sorghum/corn-fallow rotation in the great plains. Agronomy Journal 98: 26-33.
Tawainga K, Cox WJ and Harold VE, 2002. Tillage and rotation effects on soil physical characteristics. Agronomy Journal
Tisdall JM and Adem HH, 1986. Effect of water content of soil at tillage on size distribution of aggregates and infiltration. Australian Journal of Experimental Agriculture 26:193-195.
Wilhelm WW, Bouzerour H and Power JF, 1989. Soil disturbance residue management effect on winter wheat growth and yield. Agronomy Journal 81: 581-588.
Ziyou Su, Zhang A, Cai D, Jiang G, Huan J, Gao J, Hartmann R and Gabriels D, 2007. Effects of conservation tillage practices on winter wheat water use efficiency and crop yield on the Loess Plateau China. Agricultural Water Management 87: 307-314.