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Journal of Integrative Agriculture  2015, Vol. 14 Issue (4): 774-787    DOI: 10.1016/S2095-3119(14)60796-6
Soil & Fertilization﹒Irrigation﹒Plant Nutrition﹒ Agro-Ecology & Environment Advanced Online Publication | Current Issue | Archive | Adv Search |
Aggregate stability and associated C and N in a silty loam soil as affected by organic material inputs
 LONG Pan, SUI Peng, GAO Wang-sheng, WANG Bin-bin, HUANG Jian-xiong, YAN Peng, ZOU Juan-xiu, YAN Ling-ling, CHEN Yuan-quan
Circular Agriculture Research Center/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.China
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摘要  To make recycling utilization of organic materials produced in various agricultural systems, five kinds of organic materials were applied in a field test, including crop straw (CS), biogas residue (BR), mushroom residue (MR), wine residue (WR), pig manure (PM), with a mineral fertilizer (CF) and a no-fertilizer (CK) treatment as a control. Our objectives were: i) to quantify the effects of organic materials on soil C and N accumulation; ii) to evaluate the effects of organic materials on soil aggregate stability, along with the total organic carbon (TOC), and N in different aggregate fractions; and iii) to assess the relationships among the organic material components, soil C and N, and C, N in aggregate fractions. The trial was conducted in Wuqiao County, Hebei Province, China. The organic materials were incorporated at an equal rate of C, and combined with a mineral fertilizer in amounts of 150 kg N ha-1, 26 kg P ha-1 and 124 kg K ha-1 respectively during each crop season of a wheat-maize rotation system. The inputted C quantity of each organic material treatment was equivalent to the total amount of C contained in the crop straw harvested in CS treatement in the previous season. TOC, N, water-stable aggregates, and aggregate-associated TOC and N were investigated. The results showed that organic material incorporation increased soil aggregation and stabilization. On average, the soil macroaggregate proportion increased by 14%, the microaggregate proportion increased by 3%, and mean-weight diameter (MWD) increased by 20%. TOC content followed the order of PM>WR>MR>BR>CS>CK>CF; N content followed the order WR>PM>MR>BR>CS>CF>CK. No significant correlation was found between TOC, N, and the quality of organic material. Soil silt and clay particles contained the largest part of TOC, whereas the small macroaggregate fraction was the most sensitive to organic materials. Our results indicate that PM and WR exerted better effects on soil C and N accumulation, followed by MR and BR, suggesting that organic materials from ex situ farmland could promote soil quality more as compared to straw returned in situ.

Abstract  To make recycling utilization of organic materials produced in various agricultural systems, five kinds of organic materials were applied in a field test, including crop straw (CS), biogas residue (BR), mushroom residue (MR), wine residue (WR), pig manure (PM), with a mineral fertilizer (CF) and a no-fertilizer (CK) treatment as a control. Our objectives were: i) to quantify the effects of organic materials on soil C and N accumulation; ii) to evaluate the effects of organic materials on soil aggregate stability, along with the total organic carbon (TOC), and N in different aggregate fractions; and iii) to assess the relationships among the organic material components, soil C and N, and C, N in aggregate fractions. The trial was conducted in Wuqiao County, Hebei Province, China. The organic materials were incorporated at an equal rate of C, and combined with a mineral fertilizer in amounts of 150 kg N ha-1, 26 kg P ha-1 and 124 kg K ha-1 respectively during each crop season of a wheat-maize rotation system. The inputted C quantity of each organic material treatment was equivalent to the total amount of C contained in the crop straw harvested in CS treatement in the previous season. TOC, N, water-stable aggregates, and aggregate-associated TOC and N were investigated. The results showed that organic material incorporation increased soil aggregation and stabilization. On average, the soil macroaggregate proportion increased by 14%, the microaggregate proportion increased by 3%, and mean-weight diameter (MWD) increased by 20%. TOC content followed the order of PM>WR>MR>BR>CS>CK>CF; N content followed the order WR>PM>MR>BR>CS>CF>CK. No significant correlation was found between TOC, N, and the quality of organic material. Soil silt and clay particles contained the largest part of TOC, whereas the small macroaggregate fraction was the most sensitive to organic materials. Our results indicate that PM and WR exerted better effects on soil C and N accumulation, followed by MR and BR, suggesting that organic materials from ex situ farmland could promote soil quality more as compared to straw returned in situ.
Keywords:  organic materials       aggregates       soil organic carbon       soil nitrogen       stabilization  
Received: 17 January 2014   Accepted:
Fund: 

This work was supported by the National Key Technologies R&D Program of China during the 12th Five-Year Plan period (2011BAD16B15 and 2012BAD14B03).

Corresponding Authors:  CHEN Yuan-quan, Tel: +86-10-62731163, E-mail: rardc@163.com     E-mail:  rardc@163.com
About author:  LONG Pan, Tel: +86-10-62731163, E-mail: longpan_lp@126.com; SUI Peng, Tel: +86-10-62731163, E-mail: suipeng@cau.edu.cn;* These authors contributed equally to this study.

Cite this article: 

LONG Pan, SUI Peng, GAO Wang-sheng, WANG Bin-bin, HUANG Jian-xiong, YAN Peng, ZOU Juan-xiu, YAN Ling-ling, CHEN Yuan-quan. 2015. Aggregate stability and associated C and N in a silty loam soil as affected by organic material inputs. Journal of Integrative Agriculture, 14(4): 774-787.

Abiven S, Menasseri S, Chenu C. 2009. The effects of organicinputs over time on soil aggregate stability-A literatureanalysis. Soil Biology & Biochemistry, 41, 1-12

Albiach R, Canet R, Pomares F, Ingelmo F 2001. Organicmatter components and aggregate stability after theapplication of different amendments to a horticultural soil.Bioresource Technology, 76, 125-129

Angers D A, Recous S. 1997. Decomposition of wheat strawand rye residues as affected by particle size. Plant andSoil, 189, 197-203

Aoyama M, Angers D A, N’Dayegamiye A, Bissonnette N.1999. Protected organic matter in water-stable aggregatesas affected by mineral fertilizer and manure applications.Canadian Journal of Soil Science, 79, 419-425

Ayukea F O, Brussaard L, Vanlauwe B, Six J, Lelei D K, KibunjaC N, Pulleman M M. 2011. Soil fertility management:Impacts on soil macrofauna, soil aggregation and soilorganic matter allocation. Applied Soil Ecology, 48, 53-62

Bandyopadhyay P K, Saha S, Mani P K, Mandal B. 2010. Effectof organic inputs on aggregate associated organic carbonconcentration under long-term rice-wheat cropping system.Geoderma, 154, 379-386

Beare M H, Cabrera M L, Hendrix P F, Coleman D C. 1994.Aggregate-protected and unprotected organic matter poolsin conventional- and no-tillage soils. Soil Science Societyof America Journal, 58, 787-795

Bhattacharyya R, Kundu S, Prakash V, Gupta H S. 2008.Sustainability under combined application of mineral andorganic fertilizers in a rainfed soybean-wheat system ofthe Indian Himalayas. European Journal of Agronomy,28, 33-46

Bhattacharyya R, Kundu S, Srivastva A K, Gupta H S, Prakash V, Bhatt J C. 2011. Long term fertilization effects on soilorganic carbon pools in a sandy loam soil of the Indiansub-Himalayas. Plant and Soil, 341, 109-124

Bossuyt H, Denef K, Six J, Frey S D, Merckx R, Paustian K.2001. In?uence of microbial populations and residue qualityon aggregate stability. Applied Soil Ecology, 16, 195-208

Bray S R, Kitajima K, Mack M C. 2012. Temporal dynamicsof microbial communities on decomposing leaf litter of 10plant species in relation to decomposition rate. Soil Biology& Biochemistry, 49, 30-37

Bronick C J, Lal R. 2005. Manuring and rotation effects on soilorganic carbon concentration for different aggregate sizefractions on two soils in northeastern Ohio, USA. Soil &Tillage Research, 81, 239-252

Chassot A, Stamp P, Richner W. 2001. Root distribution andmorphology of maize seedlings as affected by tillage andfertilizer placement. Plant and Soil, 231, 123-135

Chenu C, Bissonnais Y L, Arrouays D. 2000. Organic matterinfluence on clay wettability and soil aggregate stability.Soil Science Society of America Journal, 64, 1479-1486

Chivenge P, Vanlauwe B, Gentile R, Six J. 2011a. Comparisonof organic versus mineral resource effects on short-termaggregate carbon and nitrogen dynamics in a sandy soilversus a ?ne textured soil. Agriculture Ecosystems &Environment, 140, 361-371

Chivenge P, Vanlauwe B, Gentile R, Six J. 2011b. Organicresource quality in?uences short-term aggregate dynamicsand soil organic carbon and nitrogen accumulation. SoilBiology & Biochemistry, 43, 657-666

Chivenge P, Vanlauwe B, Gentile R, Wangechi H, MugendiD, Kessel C V, Six J. 2009. Organic and mineral inputmanagement to enhance crop productivity in central Kenya.Agronomy Journal, 101, 1266-1275

Constantinides M, Fownes J H. 1994. Nitrogen mineralizationfrom leaves and litter of tropical plants: Relationship tonitrogen, lignin and soluble polyphenol concentrations. SoilBiology & Biochemistry, 26, 49-55

Degens B P. 1997. Macro-aggregation of soils by biologicalbonding and binding mechanisms and the factors affectingthese: a review. Australian Journal of Soil Research, 35,431-459

Denef K, Six J, Merckx R, Paustian K. 2002. Short-term effectsof biological and physical forces on aggregate formationin soils with different clay mineralogy. Plant and Soil,246,185-200

Duiker S W, Lal R. 1999. Crop residue and tillage effects oncarbon sequestration in a Luvisol in central Ohio. Soil &Tillage Research, 52, 73-81

Elliott E T. 1986. Aggregate structure and carbon, nitrogen,and phosphorus in native and cultivated soils. Soil ScienceSociety of America Journal, 50, 627-633

Fonte S J, Yeboahb E, Oforib P, Quansahb G W, Vanlauwe B,Six J. 2009. Fertilizer and residue quality effects on organicmatter stabilization in soil aggregates. Soil Science Societyof America Journal, 73, 961-966

Gao W S. 2010. Circular agriculture with Chinese characteristicsand science and technology innovation. Research ofAgricultural Modernization, 31, 129-133 (in Chinese)

Gao W S, Chen Y Q, Liang L. 2007. Basic principles andtechnology supporting for circular agriculture development.Research of Agricultural Modernization, 28, 731-734 (inChinese)

Gentile R, Vanlauwe B, Kavoo A, Chivenge P, Six J. 2010.Residue quality and N fertilizer do not in?uence aggregatestabilization of C and N in two tropical soils with contrastingtexture. Nutrient Cycling in Agroecosystems, 88, 121-131

Gleixner G, Poirier N, Bol R, Balesdent J. 2002. Moleculardynamics of organic matter in a cultivated soil. OrganicGeochemistry, 33, 357-366

Harris R F, Allen O N, Chesters G, Attoe O J. 1963. Evaluationof microbial activity in soil aggregate stabilization anddegradation by the use of arti?cial aggregates. Soil ScienceSociety of America Journal, 27, 542-545

Haynes R J. 1999. Labile organic matter fractions and aggregatestability under short-term, grass-based leys. Soil Biology &Biochemistry, 31, 1821-1830

Haynes R J, Beare M H. 1997. In?uence of six crop species onaggregate stability and some labile organic matter fractions.Soil Biology & Biochemistry, 29, 1647-1653

Janzen H H, Campbell C A, Brandt S A, Lafond G P, Townley-Smith L. 1992. Light fraction organic matter in soils fromlong-term crop rotations. Soil Science Society of AmericaJournal, 56, 1799-1806

Jastrow J D, Miller R M, Lussenhop J. 1998. Contributionsof interacting biological mechanisms to soil aggregatestabilization in restored prairie. Soil Biology & Biochemistry,30, 905-916

Jha P, Garg N, Lakaria B L, Biswas A K, Rao A S. 2012. Soil andresidue carbon mineralization as affected by soil aggregatesize. Soil & Tillage Research, 121, 57-62

Karami A, Homaee M, Afzalinia S, Ruhipour H, Basirat S. 2012.Organic resource management: Impacts on soil aggregatestability and other soil physico-chemical properties.Agriculture Ecosystems & Environment, 148, 22-28

Kong A Y Y, Six J, Bryant D C, Denison R F, Kessel C. 2005.The relationship between carbon Input, aggregation, andsoil organic carbon stabilization in sustainable croppingsystems. Soil Science Society of America Journal, 69,1078-1085

Liu Z L, Yu W T, Zhou H, Ma Q. 2011. Effect of applicationrate of barnyard manure on organic carbon fraction of soilaggregates. Acta Pedologica Sinica, 48, 1149-1157 (inChinese)

Liu Z X, Yi X L, Sun L, Xu M, Fu J. 2007. Current situationanalysis of biomass waste utilization. EnvironmentalScience and Management, 32, 104-106 (in Chinese)

Lynch J M, Bragg E. 1985. Microorganisms and soil aggregatestability. Advances in Soil Science, 2, 133-171

Manna M C, Swarup A, Wanjari R H, Ravankar H N, MishraB, Saha M N, Singh Y V, Sahi D K, Sarap P A. 2005.Long-term effect of fertilizer and manure application on soilorganic carbon storage, soil quality and yield sustainability under sub-humid and semi-arid tropical India. Field CropsResearch, 93, 264-280

Manning P, Saunders M, Bardgett R D, Bonkowski M, BradfordM A, Ellis R J, Kandeler E, Marhan S, Tscherko D. 2008.Direct and indirect effects of nitrogen deposition on litterdecomposition. Soil Biology & Biochemistry, 40, 688-698

Martens D A. 2000a. Management and crop residue in?uencesoil aggregate stability. Journal of Environmental Quality,29, 723-727

Martens D A. 2000b. Plant residue biochemistry regulates soilcarbon cycling and carbon sequestration. Soil Biology &Biochemistry, 32, 361-369

Martens D A, Frankenberger W T. 1992. Modi?cation ofin?ltration rates in an organic- amended irrigated. AgronomyJournal, 84, 707-717

Martin J P. 1942. The effect of composts and compost materialsupon the aggregation of the silt and clay particles ofCollington sandy loam. Soil Science Society of AmericaJournal, 7, 218-222

Martin J P, Waksman S A. 1941. Influence of microorganisms onsoil aggregation and erosion: II. Soil Science, 52, 381-394

Materechera S A, Kirby J M, Alston A M, Dexter A R. 1994.Modi?cation of soil aggregation by watering regime androots growing through beds of large aggregates. Plant andSoil, 160, 57-66

Monnier G. 1965. Action des matières organiques sur la Stabilitéstructure des sols. Thèse de la Faculté des Science deParis, 16, 327-400 (in France)

Morel J L, Habib L, Plantureux S, Guckert A. 1991. In?uence ofmaize root mucilage on soil aggregate stability. Plant andSoil, 136, 111-119

Mtambanengwe F, Mapfumo P. 2006. Effects of organicresource quality on soil pro?le N dynamics and maize yieldson sandy soils in Zimbabwe. Plant and Soil, 281, 173-191

Murwira H K, Kirchmann H, Swift M J. 1990. The effect ofmoisture on the decomposition rate of cattle manure. Plantand Soil, 122, 197-199

Nardi N, Morari F, Berti A, Tosoni M, Giardini L. 2004. Soilorganic matter properties after 40 years of different useof organic and mineral fertilisers. European Journal ofAgronomy, 21, 357-367

Nyamangara J, Gotosa J, Mpofo S E. 2001. Cattle manureeffects on structural stability and water retention capacity ofa granitic sandy soil in Zimbabwe. Soil & Tillage Research,62, 157-162

Nyamangara J, Piha M I, Kirchmann H. 1999. Interactionsof aerobically decomposed cattle manure and nitrogenfertilizer applied to soil. Nutrient Cycling in Agroecosystems,54, 183-188

Nyhan J W. 1975. Decomposition of carbon-14 labeledplant materials in a grassland soil under ?eld conditions.Soil Science Society of America Journal, 39, 643-648

Pagliai M, Guidi G, La Marca M, Giachetti M, Lucamante G.1981. Effects of sewage sludges and composts on soilporosity and aggregation. Journal of Environment Quality,10, 556-561

Palm C A, Gachengo C N, Delve R J, Cadisch G, Giller KE. 2001. Organic inputs for soil fertility management intropical agroecosystems: Application of an organic resourcedatabase. Agriculture Ecosystems & Environment, 83,27-42

Peng J. 2009. Review and dicussion on utilization of agriculturalwaste resources in China. Ecology and EnvironmentalSciences, 18, 794-798 (in Chinese)

Puttaso A, Vityakon P, Rasche F, Saenjan P, Treloges V,Cadisch G. 2013. Does organic residue quality influencecarbon retention in a tropical sandy soil? Soil ScienceSociety of America Journal, 77, 1001-1011

Qiu Y L. 2001. Research advance and prospect of comprehensiveuse of brewer’s spent grain by biotechnology. Food andFermentation Industries, 28, 72-73 (in Chinese)

Rasse D P, Dignac M F, Bahri H, Rumpel C, Mariotti A, ChenuC. 2006. Lignin turnover in an agricultural ?eld: From plantresidues to soil-protected fractions. European Journal SoilScience, 57, 530-538

Roldan A, Garcia-Orenes F, Lax A. 1994. An incubationexperiment to determine factors involving aggregationchanges in an arid soil receiving urban refuses. Soil Biology& Biochemistry, 26, 1699-1707

Salako F K, Babalola O, Hauser S, Kang B T. 1999. Soilmacroaggregate stability under different fallow managementsystems and cropping intensities in southwestern Nigeria.Geoderma, 91, 103-123

Schlecht-Pietsch S, Wagner U, Anderson T H. 1994. Changes incomposition of soil polysaccharides and aggregate stabilityafter carbon amendments to different textured soils. AppliedSoil Ecology, 1, 145-154

Scott N A, Cole C V, Elliott E T, Huffman S A. 1996. Soil texturalcontrol on decomposition and soil organic matter dynamics.Soil Science Society of America Journal, 60, 1102-1109

Sims J L, Frederick L R. 1970. Nitrogen immobolization anddecomposition of corn residue in soil and sand as affectedby residue particle size. Soil Science, 109, 355-361

Six J, Bossuyt H, Degryze S, Denef K. 2004. A history ofresearch on the link between (micro)aggregates, soil biota,and soil organic matter dynamics. Soil Tillage & Research,79, 7-13

Six J, Carpentier A, Kessel C, Merckx R, Harris D, HorwathW R, Luscher A. 2001. Impact of elevated CO2 on soilorganic matter dynamics as related to changes in aggregateturnover and residue quality. Plant and Soil, 234, 27-36

Six J, Elliott E T, Paustian K. 2000. Soil macroaggregateturnover and microaggregate formation: A mechanism forC sequestration under no-tillage agriculture. Soil Biology &Biochemistry, 32, 2099-2103

Spaccini R, Piccolo A. 2013. Effects of ?eld managements forsoil organic matter stabilization on water-stable aggregatedistribution and aggregate stability in three agricultural soils.Journal of Geochemical Exploration, 129, 45-51

Sun Y M, Li G X, Zhang F D, Shi C L, Sun Z J. 2005. Statusquo and developmental strategy of agricultural residuesresources in China. Transactions of the Chinese Society of Agricultural Engineering, 21, 169-173 (in Chinese)

Sun Z J. 2004. Biomass industry and its developmental trendsin China. Transactions of the Chinese Society of AgriculturalEngineering, 20, 1-5 (in Chinese)

Thomsen I K, Schjønning P, Jensen B, Kristensen K,Christensen B T. 1999. Turnover of organic matter indifferently textured soils: II. Microbial activity as in?uencedby soil water regimes. Geoderma, 89, 199-218

Tisdall J M, Oades J M. 1982. Organic matter and water-stableaggregates in soils. Journal of Soil Science, 33, 141-163

Trinsoutrot I, Recous S, Bentz B, Linères M, Chèneby D,Nicolardot B. 2000. Biochemical quality of crop residuesand carbon and nitrogen mineralization kinetics undernonlimiting nitrogen conditions. Soil Science Society ofAmerica Journal, 64, 918-926

Turkmen N, Sari F, Velioglu Y S. 2006. Effects of extractionsolvents on concentration and antioxidant activity of blackand black mate tea polyphenols determined by ferroustartrate and Folin-Ciocalteu methods. Food Chemistry, 99,835-841

Vanlauwe B, Diels J, Aihou K, Iwuafor E N O, Lyasse O,Sanginga N, Merckx R. 2002. Direct interactions betweenN fertilizer and organic matter: Evidence from trials with15N-labelled fertilizer. In: Vanlauwe B, Diels J, Sanginga N,Merckx R, eds., Integrated Plant Nutrient Management inSub-Saharan Africa. CAB International, Wallingford, UK,pp. 173-184

Vanlauwe B, Gachengo C, Shepherd K, Barrios E, CadischG, Palm C A. 2005. Laboratory validation of a resourcequality-based conceptual framework for organic mattermanagement. Soil Science Society of America Journal,69, 1135-1145

Van-Soest P J. 1963. Use of detergents in the analysis of ?brousfeeds II. A rapid method for the determination of ?ber andlignin. Journal of the Association of Official AgriculturalChemists, 46, 829-835

Walkley A, Black L A. 1934. An examination of the method fordetermining soil organic matter, and a proposed modificationof the chromic acidtitration method. Soil Science, 37, 29-38

Wei Z T, Zhou G Y, Hu Q X. 2010. Research and utilization ofedible fungi residue. Edible Fungi of China, 29, 3-6, 11(in Chinese)

Yadav R L, Dwivedi B S, Prasad K, Tomar O K, Shurpali NJ, Pandey P S. 2000. Yield trends, and changes in soilorganic-C and available NPK in a long-term rice-wheatsystem under integrated use of manures and fertilisers.Field Crops Research, 68, 219-246

Yang F, Li R, Cui Y, Duan Y H. 2010. Utilization and developstrategy of organic fertilizer resources in China. ChineseSoil and Fertilizer, 4, 77-82 (in Chinese)

Yoder R E. 1936. A direct method of aggregate analysis of soilsand a study of the physical nature of soil erosion losses.Agronomy Journal, 28, 337-351
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