Abstract
Purpose
Impacts of a commercially available decay-facilitating microbial inoculum on carbon (C) and nitrogen (N) mineralization were evaluated during decomposition of rice straw in a paddy soil.
Materials and methods
Two incubation experiments were conducted for 105 days with a typical low-yield high-clay soil in central China to monitor effects of straw and the inoculum on CO2 evolution, as well as dissolved organic C (DOC), NH4 +, NO3 −, and pH under conditions of 15 °C 70 %, 25 °C 40 %, 25 °C 70 %, 25 °C 100 %, and 35 °C 70 % of water-holding capacity (WHC) with adequate N, supplied as urea or manure, respectively.
Results and discussion
Treatments of 25 °C 70 % WHC, 25 °C 100 % WHC, and 35 °C 70 % WHC generally achieved significant higher CO2 evolution while treatment of 25 °C 40 % WHC had least. This was more evident with added manure compared to urea (P < 0.05). The inoculum generally increased the decomposition of C inputs and the largest increases were in the initial 28 day in treatments 25 °C 70 % WHC, 25 °C 100 % WHC, and 35 °C 70 % WHC; only the 25 °C 40 % WHC actually immobilized C. The CO2 release rates were positively correlated with DOC, but with different slopes within treatments. Despite equivalent N application rates, manure treatments had significantly less N (including NO3 −, NH4 +, and total dissolved N) than those with urea. Incubation of 25 °C 40 % WHC decreased soil pH the least, probably due to relative low moisture causing delayed nitrification.
Conclusions
The results implied that the inoculum, especially fungi, would adjust to edaphic and N fertilization in regulating organic C mineralization, during which water potential would exhibit a great role in regulating substrate and nutrient availability.
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References
Abdulla HM (2007) Enhancement of rice straw composting by lignocellulolytic actinomycete strains. Int J Agric Biol 9(1):106–109
Abera G, Wolde-meskel E, Bakken LR (2012) Carbon and nitrogen mineralization dynamics in different soils of the tropics amended with legume residues and contrasting soil moisture contents. Biol Fertil Soils 48:51–66
Allison SD, Lu Y, Weihe C, Goulden ML, Martiny AC, Treseder KK, Martiny JB (2013) Microbial abundance and composition influence litter decomposition response to environmental change. Ecology 94(3):714–725
Arshad MA, Martin S (2002) Identifying critical limits for soil quality indicators in agro-ecosystems. Agric Ecosyst Environ 88:153–160
Bowen SR, Gregorich EG, Hopkins DW (2009) Biochemical properties and biodegradation of dissolved organic matter from soils. Biol Fertil Soils 45:733–742
Carter DO, Tibbett M (2006) Microbial decomposition of skeletal muscle tissue (Ovis aries) in a sandy loam soil at different temperature. Soil Biol Biochem 38:1139–1145
Chen HL, Zhou JM, Xiao BH (2010) Characterization of dissolved organic matter derived from rice straw at different stages of decay. J Soils Sediments 10:915–922
Chen L, Zhang JB, Zhao BZ, Xin XL, Zhou GX, Tan JF, Zhao JH (2014) Carbon mineralization and microbial attributes in straw-amended soils as affected by moisture levels. Pedosphere 24:167–177
Chow AT, Tanji KK, Gao S, Dahlgren RA (2006) Temperature, water content and wet-dry cycle effects on DOC production and carbon mineralization in agricultural peat soils. Soil Biol Biochem 38:477–488
Cleveland CC, Reed SC, Keller AB, Nemergut DR, O’Neill SP, Ostertag R, Vitousek PM (2014) Litter quality versus soil microbial community controls over decomposition: a quantitative analysis. Oecologia 174:283–294
De Neve S, Hofman G (2002) Quantifying soil water effects on nitrogen mineralization from soil organic matter and from fresh crop residues. Biol Fertil Soils 35:379–386
Eiland F, Klamer M, Lind AM, Leth M, Bееthet E (2001) Influence of initial C/N ratio on chemical and microbial composition during long term composting of straw. Microb Ecol 41(3):272–280
Fang P, He Y (2003) Experimental design and statistical analysis (in Chinese). Zhejiang University Press, Hangzhou
Gee GW, Bauder JW (1986) Particle-size analysis. In: Klute A (ed) Methods of soil analysis part 1: physical and mineralogical methods, 2nd edn. ASA-SSSA, Madison, pp 383–412
Greenwood MH, Sims RC, McLean JE, Doucette WJ (2007) Temperature effect on tert-butyl alcohol (TBA) biodegradation in hyporheic zone soils. Biomed Eng Online 6:34
Han W, He M (2010) The application of exogenous cellulase to improve soil fertility and plant growth due to acceleration of straw decomposition. Bioresour Technol 101(10):3724–3731
Han LJ, Yan QJ, Liu XY, Hu JY (2002) Straw resources and their utilization in China. Trans CSAE 18(3):87–91 (in Chinese with English abstract)
Horwath WR, Elliott LF (1996) Microbial C and N dynamics during mesophilic and thermophilic incubations of ryegrass. Biol Fertil Soils 22:1–9
Kemmitt SJ, Lanyon CV, Waite IS, Wen Q, Addiscott TM, Bird NR, O’Donnell AG, Brookes PC (2008) Mineralization of native soil organic matter is not regulated by the size, activity or composition of the soil microbial biomass—a new perspective. Soil Biol Biochem 40(1):61–73
Khalil MI, Hossain MB, Schmidhalter U (2005) Carbon and nitrogen mineralization in different upland soils of the subtropics treated with organic materials. Soil Biol Biochem 37:1507–1518
Laine MM, Joergensen KS (1996) Straw compost and bioremediated soil as inocula for the bioremediation of chlorophenol-contaminated soil. Appl Environ Microbiol 62(5):1507–1513
Liu Z, Zhou W, Shen J, Li S, Ai C (2014) Soil quality assessment of yellow clayey paddy soils with different productivity. Biol Fertil Soils 50:537–548
Maestrini B, Nannipieri P, Abiven S (2015) A meta-analysis on pyrogenic organic matter induced priming effect. GCB Bioenergy 7(4):577–590
Magan N, Hand P, Kirkwood IA, Lynch JM (1989) Establishment of microbial inocula on decomposing wheat straw in soil of different water contents. Soil Biol Biochem 21(1):15–22
Manzoni S, Schimei JP, Porporato A (2012) Responses of soil microbial communities to water stress: results from a meta-analysis. Ecology 93(4):930–938
Møller J, Miller M, Kjøller A (1999) Fungal-bacterial interaction on beech leaves: influence on decomposition and dissolved organic carbon quality. Soil Biol Biochem 31:367–374
Mulvaney RL (1996) Nitrogen—inorganic forms. In: Sparks DL (ed) Methods of soil analysis, part 3: chemical methods. Soil Science Society of America, Madison, pp 1123–1184
Puttaso A, Vityakon P, Saenjan P, Trelo-ges V, Cadisch G (2011) Relationship between residue quality, decomposition patterns, and soil organic matter accumulation in a tropical sandy soil after 13 years. Nutr Cycl Agroecosyst 89:159–174
Rey A, Petsikos C, Jarvis PG, Grace J (2005) Effect of temperature and moisture on rates of carbon mineralization in a Mediterranean oak forest soil under controlled and field conditions. Eur J Soil Sci 56:589–599
Sherman C, Grishkan I, Barness G, Steinberger Y (2014) Fungal community—plant litter decomposition relationships along a climate gradient. Pedosphere 24:437–449
Shindo H, Nishio T (2005) Immobilization and remineralization of N transformation rates by 15N-ammonium isotope dilution technique. Soil Biol Biochem 37:425–432
Soil Survey Staff (2010) Keys to soil taxonomy, 11th edn. USDA Natural Resources Conservation Service, Washington DC
Song M, Jiang J, Cao G, Xu X (2010) Effects of temperature, glucose and inorganic nitrogen inputs on carbon mineralization in a Tibetan alpine meadow soil. Eur J Soil Biol 46:375–380
Stark JM, Firestone MK (1995) Mechanisms for soil moisture effects on activity of nitrifying bacteria. Appl Environ Microbiol 61:218–221
Su P, Fu Y, He Y, Xu JM, Wu JJ, Wu LH (2015) Straw decomposition and carbon transformation in double rice cropping area of central China as affected by coupling management of temperature, humidity, nitrogen fertilizer and microbial inocula during straw returning to field. Plant Nutr Fertil Sci 21(1):1–11 (in Chinese with English abstract)
Vance ED, Brookes PC, Jenkinson DS (1987) An extraction method for measuring soil microbial biomass C. Soil Biol Biochem 19:703–707
Wang YF, Tang CX, Wu JJ, Liu XM, Xu JM (2013) Impact of organic matter addition on pH change of paddy soils. J Soils Sediments 13:12–23
Wu JS, Joergensen RG, Pommerening B, Chaussod R, Brookes PC (1990) Measurement of soil microbial biomass C by fumigation-extraction: an automated procedure. Soil Biol Biochem 22:1167–1169
Xiao KC, Yu L, Xu JM, Brookes PC (2014) pH, nitrogen mineralization, and KCl-extractable aluminum as affected by initial soil pH and rate of vetch residue application: results from a laboratory study. J Soils Sediments 9:1513–1525
Yeomans JC, Bremner JM (1988) A rapid and precise method for routine determination of organic carbon in soil 1. Commun Soil Sci Plant Anal 19:1467–1476
Yuste JC, Penuelas J, Estiarte M, Garcia-mas J, Mattana S, Ogaya R, Pujol M, Sardans J (2011) Drought-resistant fungi control soil organic matter decomposition and its response to temperature. Glob Chang Biol 17:1475–1486
Acknowledgments
This work was jointly supported by the Special Fund for Agro-scientific Research in the Public Interest (Grant No. 201003016), the National Key Basic Research Development 973 Project (Grant No. 2011CB100502), and the State Science and Technology Support Program (Grant No. 2012BAD15B04).
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Su, P., Brookes, P.C., He, Y. et al. An evaluation of a microbial inoculum in promoting organic C decomposition in a paddy soil following straw incorporation. J Soils Sediments 16, 1776–1786 (2016). https://doi.org/10.1007/s11368-015-1340-y
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DOI: https://doi.org/10.1007/s11368-015-1340-y