Document Type : Original Article
- Shahrzad Kabirinejad 1
- Mahmoud Kalbasi 1
- Amir Hoseein Khoshgoftarmanesh 2
- Mehran Hoodaji 1
- Majid Afyuni 3
1 Department of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
2 College of Agriculture, Isfahan University of Technology, Isfahan, Iran
3 College of Agriculture, Isfahan University of Technology, Isfahan,Iran
Objective: Returning crop residue to the soil exerts favorable effects on physical and chemical properties of soil. In fact, the plant residues can affect soil conditions such as pH and important role in soil fertility and cycling of elements in the soil may have. In addition to the role of the organic matter from decomposition of crop residue in increasing the concentration of micronutrients in soil solution is very important. Present research was conducted with the objective of studying the effect of the kind of crop residues: sunflower (Helianthus annnus L. cv. Allstar), sudan grass (Sorghum bicolor L. cv. Speed Feed), trifolium (Trifolium pretense L.) and safflower (Carthamus tinctorius L. cv. Koseh-e-Isfahan), with control on chemical properties of soil and effect on bioavailable of copper. Methods: In this study complete randomized block field experiment, consisting of 3 replications and 5 treatments. After 3 weeks, increasing crop residues, soil samples collected and were used to measure some properties of soil and concentration of Cu in soil. Results: Results showed that crop residues significantly decreased soil pH and the largest increase was observed for Trifolium treatment. EC significantly increased by affected crop residues application. The crop residues significant increased the concentration of dissolved organic carbon (DOC). the largest effect was dependent for Trifolium treatment. The crop residues significant increased the concentration of DTPA-extractable Cu. The highest effect was obtained for Trifolium treatment. Therefore, Trifolium residues application decreased the amount of soil pH and consequent increase of DOC which in turn elevated the concentration of DTPA- extractable Cu. Trifolium was the most effective in increasing the phytoavailability of Cu in soil.
Agbola AA, Fagbenro JA. 1985. Soil Organic Matter and its Management in the Humid Tropics in with Particular Reference to Nigeria. In: Soil Fertility, Soil Tilt and Post Clearing Land Degradation in the Humid Tropics. Proc.
ISS/SSSN Conference, Ibadan, 26. Nigeria, pp: 215-233.
Antoniadis V, Alloway BJ. 2002. The role of DOC in the mobility of Cd, Ni and Zn in sewage sludge-amended soils. Environmental Pollution.117 (3): 515-521.
Beres I, Kazinczi G. 2000. Allelopathic effects of shoot extracts and residues of weeds on field crops. Allelopathy Journal. 7: 93-98.
Biederbeck, V.O., C.A. Campbell, K.E. Bowren, M. Skitzer and R.N. Melver, 1980. Effect of Burning cereal straw on soil properties and gain yields in baskatchewan. Soil Sci. Soc. Amer J., 44: 103-111.
Brun F G, Hern·ndez I, Vergara J J, Peralta G, JL PÈrezLlorÈns. 2002. Assessing the toxicity of ammonium pulses to the survival and growth of Zostera noltii Fernando. Marine Ecology Progress Serins. 225: 177ñ187.
Cattani I, Fragoulis G, Boccelli R, Capri E. 2006. Copper bioavailability in the rhizosphere of maize (Zea mays L.) grown in two Italian soils. Chemosphere. 64: 1972ñ1979.
Changitny M H. 2003. Dissolved and water- extractable organic matter in soils: a review on the influence of land use and management practices. Geoderma. 113: 357-380.
Eghball B, Ginting D, Gilley JE. 2004. Residual effects of manure and compost applications on corn production and soil properties. Agron. J. 96:442-447.
Fuentes A, Llorens M, Saez J, Soler A, Aguilar MI, Ortuno JF, Meseguer VF. 2004. Simple and sequential extractions of heavy metals from different sewage sludges. Chemosphere. 54: 1039ñ1047.
Grifith, D.R., J.V. Mannering and W.C. Moldenhauer, Conservation Tillage in the Eastern Corn Belt. J. Soil and Water Cons., 32: 20-28.
Lal, R., 1976. No Tillage effect on soil properties under different Crops in Western Nigeria. Proc. Soil Sci. Soc. Amer., 40: 762-768.
McGill WB, Cannon KR, Roberson JA, Cook FD. 1996. Dynamics of soil microbial biomass and watersoluble organic C in Breton L after 50 years of cropping to rotations. Can. J. Soil Sci. 66: 1-19.
Mitchell CC, Entry JA. 1998. Soil C, N and crop yields in Alabamaís long-term ëold rotationí cotton experiment. Soil Tillage Res. 47: 331ñ338.
Naidu R, Harter RD. 1998. Effect of different organic ligands on cadmium sorption by and extractability from soils. Soil Sci. Soc. Am. J. 62:644-650.
Obrador A, Rico MI, Mingot JI, Alvarez JM. 1997. Metal
mobility and potential bioavailability in organic matterrich soil-sludge mixtures: effect of soil type and contact time. Sci. Total Environ. 206: 117ñ126.
Prasad B, Sinha SK. 1995. Nutrient recycling through crop residues management for sustainable rice andwheat production in calcareous soil. Fert. News. 40: 15-2325.
Rasmusen, P.E., E. Almara, C.R. Rohade and N.C. Roagat Jr., 1980. Crop residue influences on soil carbon and nitrogen in a what fallow system.
SAS Institute. 2003. SAS/STAT userís guide. SAS Institute Inc. Cary.
Singh, S.P., Tack, F.M., Verloo, M.G., 1998. Heavy metal fractionation and extractability in dredged sediment derived surface soils. Water Air Soil Pollut. 102: 313-328.
Singh B, Natesan SKA, Singh BK, Usha K. 2005. Improving zinc efficiency of cereals under zinc deficiency. Curr Sci. 88: 36-44.
Stevenson FJ. 1991. Organic matter micronutrient reaction in soil. Micronutrinet in agriculture. Soil Sci. Soc. Am. J, 145-186.
Wang Z, Shan XQ, Zhang S. 2001. Comparison of speciation and bioavailability of rare earth elements between wet rhizosphere soil and air- dried bulk soil. Analytica Chimica Acta. 44:147.