ANDERSON TH, 1989, SOIL BIOL BIOCHEM, V21, P471, DOI 10.1016/0038-0717(89)90117-X; Anonymous], J AM SOC AGRONOMY; Anonymous], P S AFRICAN SUGAR TE; Archna Suman, 2000, Sugar Tech, V2, P21, DOI 10.1007/BF02995581; Baldani JI, 2002, FUNCT PLANT BIOL, V29, P417, DOI 10.1071/PP01083; CAVALCANTE VA, 1988, PLANT SOIL, V108, P23, DOI 10.1007/BF02370096; Dee BM, 2003, BIOL FERT SOILS, V37, P47, DOI 10.1007/s00374-002-0562-5; DORAN JW, 1994, SSSA SPEC PUBL, P3; Garside AL, 1997, SOUTH AFRICAN SUGAR TECHNOLOGISTS' ASSOCIATION, 1997 PROCEEDINGS OF THE SEVENTY-FIRST ANNUAL CONGRESS, P3; GUISQUIANI PL, 1995, J ENVIRON QUAL, V24, P75; Jackson ML., 1973, SOIL CHEM ANAL, P498, DOI 10.1002/JPLN.19590850311; JAMES EK, 1994, J EXP BOT, V45, P757, DOI 10.1093/jxb/45.6.757; Jenkinson D. S., 1981, Soil biochemistry. Volume 5, P415; JENKINSON DS, 1976, SOIL BIOL BIOCHEM, V8, P167, DOI 10.1016/0038-0717(76)90001-8; Li XZ, 2004, BIOL FERT SOILS, V39, P344, DOI 10.1007/s00374-004-0720-z; Mäder P, 2002, SCIENCE, V296, P1694, DOI 10.1126/science.1071148; Muthukumarasamy R, 1999, BIOL FERT SOILS, V29, P157, DOI 10.1007/s003740050539; Muthukumarasamy R, 2002, PLANT SOIL, V243, P91, DOI 10.1023/A:1019963928947; Oliveira ALM, 2002, PLANT SOIL, V242, P205, DOI 10.1023/A:1016249704336; Olsen S. R., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P403; Parham JA, 2002, BIOL FERT SOILS, V35, P328, DOI 10.1007/s00374-002-0476-2; Piper C. S., 1966, SOIL PLANT ANAL; RAI MM, 1995, PHYS PROPERTIES SOIL; Saviozzi A, 2002, BIOL FERT SOILS, V35, P96, DOI 10.1007/s00374-002-0445-9; Sevilla M, 2001, MOL PLANT MICROBE IN, V14, P358, DOI 10.1094/MPMI.2001.14.3.358; Snedecor G.W., 1967, STAT METHODS; SPARLING GP, 1992, AUST J SOIL RES, V30, P195, DOI 10.1071/SR9920195; Speir TW, 2004, BIOL FERT SOILS, V40, P349, DOI 10.1007/s00374-004-0787-6; Staben ML, 1997, SOIL SCI SOC AM J, V61, P124, DOI 10.2136/sssaj1997.03615995006100010019x; Suman A, 2005, PLANT GROWTH REGUL, V47, P155, DOI 10.1007/s10725-005-2847-9; Suman A, 2001, WORLD J MICROB BIOT, V17, P39, DOI 10.1023/A:1016624701517; Suman A, 2006, AGRON J, V98, P698, DOI 10.2134/agronj2005.0173; WARDLE DA, 1992, BIOL REV, V67, P321, DOI 10.1111/j.1469-185X.1992.tb00728.x; YADAV RL, 1992, EXP AGR, V28, P57, DOI 10.1017/S0014479700023012