Register      Login
Soil Research Soil Research Society
Soil, land care and environmental research
RESEARCH ARTICLE

Structural and hydraulic responses of humid tropical soils to lime and organic residue amendments

Ronen Francis https://orcid.org/0000-0002-6422-3225 A * , De Shorn E. Bramble https://orcid.org/0000-0002-1212-4575 A , Mark N. Wuddivira A and Gregory A. Gouveia A
+ Author Affiliations
- Author Affiliations

A Department of Food Production, The University of the West Indies, St. Augustine, Trinidad and Tobago.

* Correspondence to: ronen.francis@gmail.com

Handling Editor: Marta Camps-Arbestain

Soil Research 60(1) 73-85 https://doi.org/10.1071/SR20305
Submitted: 31 October 2020  Accepted: 24 June 2021   Published: 12 October 2021

© 2022 The Author(s) (or their employer(s)). Published by CSIRO Publishing

Abstract

In humid tropical environments, where soils are characteristically acidic and low in organic matter, lime and organic residues have been used to improve soil quality. A systematic consideration of their interaction is, therefore, crucial for land-based ecosystem management. A 28-day incubation pot study was carried out to investigate the main and interactive effects of lime and organic residue type (corn stover and vermicompost) on aggregate stability under rapid wetting (WSAr), saturated hydraulic conductivity (Ksat), and soil water repellency (SWR) on three acidic soils with contrasting clay content from Trinidad: Cunupia (Aquic Hapludalfs), Sangre Grande (Fluvaquentic Endoaquepts), and Talparo (Aquertic Eutrudepts). Organic residue had a significant (P ≤ 0.001) increasing effect on WSAr and Ksat for all three soils, this being highest for corn stover and lowest for no residue. Lime and organic residue interactive effects were only significant (P ≤ 0.05) for WSAr in the Cunupia soil, where lime significantly reduced WSAr in the vermicompost and no residue, but not in the corn stover treatment. Soil water repellency increased with clay content and was highest in the lime–corn stover treatment of the Talparo soil. Overall, our results suggest that applying crop residue with lime may help minimise the short-term deleterious effects of lime on the structural and hydraulic properties of humid tropical soils. Nonetheless, future experiments with a wider range of soils and organic residues need to be carried out for a longer term to validate our results.

Keywords: acid soils, aggregate stability, crop residue, lime, repellency, soil management, soil organic matter, vermicompost.


References

Ahmad N (2011) ‘Soils of the Caribbean’. (Ian Randle Publishers: Kingston, Jamaica)

Amézketa E (1999) Soil aggregate stability: a review. Journal of Sustainable Agriculture 14, 83–151.
Soil aggregate stability: a review.Crossref | GoogleScholarGoogle Scholar |

Araya SN, Ghezzehei TA (2019) Using machine learning for prediction of saturated hydraulic conductivity and its sensitivity to soil structural perturbations. Water Resources Research 55, 5715–5737.
Using machine learning for prediction of saturated hydraulic conductivity and its sensitivity to soil structural perturbations.Crossref | GoogleScholarGoogle Scholar |

Arshad M, Soon Y, Azooz R, Lupwayi N, Chang S (2012) Soil and crop response to wood ash and lime application in acidic soils. Agronomy Journal 104, 715–721.
Soil and crop response to wood ash and lime application in acidic soils.Crossref | GoogleScholarGoogle Scholar |

ASTM (2017) ASTM D4318-17e1 ‘Standard test methods for liquid limit, plastic limit, and plasticity index of soils’. (ASTM International: West Conshohocken, PA, USA)
| Crossref |

Aye NS, Butterly CR, Sale PWG, Tang C (2017) Residue addition and liming history interactively enhance mineralization of native organic carbon in acid soils. Biology and Fertility of Soils 53, 61–75.
Residue addition and liming history interactively enhance mineralization of native organic carbon in acid soils.Crossref | GoogleScholarGoogle Scholar |

Aye NS, Sale PW, Tang C (2016) The impact of long-term liming on soil organic carbon and aggregate stability in low-input acid soils. Biology and Fertility of Soils 52, 697–709.
The impact of long-term liming on soil organic carbon and aggregate stability in low-input acid soils.Crossref | GoogleScholarGoogle Scholar |

Beharry SL, Gabriels D, Lobo D, Clarke RM (2019) A 35-year meteorological drought analysis in the Caribbean Region: case study of the small island state of Trinidad and Tobago. SN Applied Sciences 1, 1256
A 35-year meteorological drought analysis in the Caribbean Region: case study of the small island state of Trinidad and Tobago.Crossref | GoogleScholarGoogle Scholar |

Belfon R, Bekele I, Eudoxie G, Voroney P, Gouveia G (2014) Sequestering carbon and improving soil fertility; validation of an improved method for estimating CO2 flux. Geoderma 235–236, 323–328.
Sequestering carbon and improving soil fertility; validation of an improved method for estimating CO2 flux.Crossref | GoogleScholarGoogle Scholar |

Bisdom E, Dekker L, Schoute JT (1993) Water repellency of sieve fractions from sandy soils and relationships with organic material and soil structure. In ‘Soil structure/soil biota interrelationships’. pp. 105–118. (Elsevier: Amsterdam, Netherlands)

Bramble DE, Gouveia GA, Ramnarine R, Farrell RE (2020) Short-term effects of aglime on inorganic-and organic-derived CO2 emissions from two acid soils amended with an ammonium-based fertiliser. Journal of Soils and Sediments 20, 52–65.
Short-term effects of aglime on inorganic-and organic-derived CO2 emissions from two acid soils amended with an ammonium-based fertiliser.Crossref | GoogleScholarGoogle Scholar |

Bramble DE, Gouveia GA, Ramnarine R, Farrell RE (2021) Organic residue and agricultural lime interactions on CO2 emissions from two contrasting soils: implications for carbon management in acid soils. Journal of Soils and Sediments 21, 172–188.
Organic residue and agricultural lime interactions on CO2 emissions from two contrasting soils: implications for carbon management in acid soils.Crossref | GoogleScholarGoogle Scholar |

Bremner JM (1996) Nitrogen‐total. In ‘Methods of soil analysis. Part 3. Chemical methods 5.3’. (Eds DL Sparks, AL Page, PA Helmke) pp. 1085–1121. (Soil Science Society of America, Inc.: Madison, WI, USA)

Briedis C, de Moraes Sá JC, Caires EF, de Fátima Navarro J, Inagaki TM, Boer A, Neto CQ, de Oliveira Ferreira A, Canalli LB, Dos Santos JB (2012) Soil organic matter pools and carbon-protection mechanisms in aggregate classes influenced by surface liming in a no-till system. Geoderma 170, 80–88.
Soil organic matter pools and carbon-protection mechanisms in aggregate classes influenced by surface liming in a no-till system.Crossref | GoogleScholarGoogle Scholar |

Bronick CJ, Lal R (2005) Soil structure and management: a review. Geoderma 124, 3–22.
Soil structure and management: a review.Crossref | GoogleScholarGoogle Scholar |

Brown CB, Bally GS (1966) ‘Land capability survey of Trinidad and Tobago. No. 3, soils of northern Trinidad’. (Government Printery: Trinidad and Tobago)

Brown CB, Bally GS (1968) ‘Land capability survey of Trinidad and Tobago. No. 5, soils of south Trinidad’. (Government Printery: Trinidad and Tobago)

Brown CB, Bally GS (1970) ‘Land capability survey of Trinidad and Tobago. No. 4, soils of central Trinidad’. (Government Printery: Trinidad and Tobago)

Caesar-TonThat TC (2002) Soil binding properties of mucilage produced by a basidiomycete fungus in a model system. Mycological Research 106, 930–937.
Soil binding properties of mucilage produced by a basidiomycete fungus in a model system.Crossref | GoogleScholarGoogle Scholar |

Caires EF, Garbuio F, Churka S, Barth G, Corrêa J (2008) Effects of soil acidity amelioration by surface liming on no-till corn, soybean, and wheat root growth and yield. European Journal of Agronomy 28, 57–64.
Effects of soil acidity amelioration by surface liming on no-till corn, soybean, and wheat root growth and yield.Crossref | GoogleScholarGoogle Scholar |

Castro C, Logan T (1991) Liming effects on the stability and erodibility of some Brazilian Oxisols. Soil Science Society of America Journal 55, 1407–1413.
Liming effects on the stability and erodibility of some Brazilian Oxisols.Crossref | GoogleScholarGoogle Scholar |

Chan K, Heenan D (1998) Effect of lime (CaCO3) application on soil structural stability of a red earth. Soil Research 36, 73–86.
Effect of lime (CaCO3) application on soil structural stability of a red earth.Crossref | GoogleScholarGoogle Scholar |

Chaney K, Swift R (1984) The influence of organic matter on aggregate stability in some British soils. Journal of Soil Science 35, 223–230.
The influence of organic matter on aggregate stability in some British soils.Crossref | GoogleScholarGoogle Scholar |

Chenu C, Le Bissonnais Y, Arrouays D (2000) Organic matter influence on clay wettability and soil aggregate stability. Soil Science Society of America Journal 64, 1479–1486.
Organic matter influence on clay wettability and soil aggregate stability.Crossref | GoogleScholarGoogle Scholar |

Condron L, Tiessen H, Trasar-Cepeda C, Moir J, Stewart J (1993) Effects of liming on organic matter decomposition and phosphorus extractability in an acid humic Ranker soil from northwest Spain. Biology and Fertility of Soils 15, 279–284.
Effects of liming on organic matter decomposition and phosphorus extractability in an acid humic Ranker soil from northwest Spain.Crossref | GoogleScholarGoogle Scholar |

Córdova SC, Olk DC, Dietzel RN, Mueller KE, Archontouilis SV, Castellano MJ (2018) Plant litter quality affects the accumulation rate, composition, and stability of mineral-associated soil organic matter. Soil Biology and Biochemistry 125, 115–124.
Plant litter quality affects the accumulation rate, composition, and stability of mineral-associated soil organic matter.Crossref | GoogleScholarGoogle Scholar |

Cosentino D, Chenu C, Le Bissonnais Y (2006) Aggregate stability and microbial community dynamics under drying–wetting cycles in a silt loam soil. Soil Biology and Biochemistry 38, 2053–2062.
Aggregate stability and microbial community dynamics under drying–wetting cycles in a silt loam soil.Crossref | GoogleScholarGoogle Scholar |

da Costa CHM, Crusciol CAC, Ferrari Neto J, Castro GSA (2016) Residual effects of superficial liming on tropical soil under no-tillage system. Pesquisa Agropecuária Brasileira 51, 1633–1642.
Residual effects of superficial liming on tropical soil under no-tillage system.Crossref | GoogleScholarGoogle Scholar |

Diacono M, Montemurro F (2010) Long-term effects of organic amendments on soil fertility. A review. Agronomy for Sustainable Development 30, 401–422.
Long-term effects of organic amendments on soil fertility. A review.Crossref | GoogleScholarGoogle Scholar |

Doerr SH (1998) On standardizing the ‘water drop penetration time’ and the ‘molarity of an ethanol droplet’ techniques to classify soil hydrophobicity: a case study using medium textured soils. Earth Surface Processes and Landforms 23, 663–668.

Doerr SH, Llewellyn C, Douglas P, Morley C, Mainwaring K, Haskins C, Johnsey L, Ritsema C, Stagnitti F, Allinson G (2005) Extraction of compounds associated with water repellency in sandy soils of different origin. Soil Research 43, 225–237.
Extraction of compounds associated with water repellency in sandy soils of different origin.Crossref | GoogleScholarGoogle Scholar |

Doerr SH, Shakesby R, Dekker L, Ritsema C (2006) Occurrence, prediction and hydrological effects of water repellency amongst major soil and land‐use types in a humid temperate climate. European Journal of Soil Science 57, 741–754.
Occurrence, prediction and hydrological effects of water repellency amongst major soil and land‐use types in a humid temperate climate.Crossref | GoogleScholarGoogle Scholar |

Doerr SH, Thomas AD (2000) The role of soil moisture in controlling water repellency: new evidence from forest soils in Portugal. Journal of Hydrology 231–232, 134–147.
The role of soil moisture in controlling water repellency: new evidence from forest soils in Portugal.Crossref | GoogleScholarGoogle Scholar |

Farrick KK, Akweli Z, Wuddivira MN (2018) Influence of manure, compost additions and temperature on the water repellency of tropical soils. Soil Research 56, 685–695.
Influence of manure, compost additions and temperature on the water repellency of tropical soils.Crossref | GoogleScholarGoogle Scholar |

Fontaine S, Mariotti A, Abbadie L (2003) The priming effect of organic matter: a question of microbial competition? Soil Biology and Biochemistry 35, 837–843.
The priming effect of organic matter: a question of microbial competition?Crossref | GoogleScholarGoogle Scholar |

Francis R, Bramble DE, Wuddivira MN, Gouveia GA (2021) Structural and hydraulic responses in tropical soils Raw Data.xlsx. Dataset. Available at 10.6084/m9.figshare.14828739.v2

Francis R, Wuddivira MN, Darsan J, Wilson M (2019) Soil slaking sensitivity as influenced by soil properties in alluvial and residual humid tropical soils. Journal of Soils and Sediments 19, 1937–1947.
Soil slaking sensitivity as influenced by soil properties in alluvial and residual humid tropical soils.Crossref | GoogleScholarGoogle Scholar |

Gee GW, Or D (2002) Particle‐size analysis. In ‘Methods of soil analysis. Part 4. Physical methods 5.4’. (Eds JH Dane, G Clarke Topp) pp. 255–293. (Soil Science Society of America, Inc.: Madison, WI, USA)

González-Peñaloza FA, Zavala LM, Jordán A, Bellinfante N, Bárcenas-Moreno G, Mataix-Solera J, Granged AJP, Granja-Martins FM, Neto-Paixão HM (2013) Water repellency as conditioned by particle size and drying in hydrophobized sand. Geoderma 209–210, 31–40.
Water repellency as conditioned by particle size and drying in hydrophobized sand.Crossref | GoogleScholarGoogle Scholar |

Grover SP, Butterly CR, Wang X, Tang C (2017) The short term effects of liming on organic carbon mineralization in two acidic soils as affected by different rates and application depths of lime. Biology and Fertility of Soils 53, 431–443.
The short term effects of liming on organic carbon mineralization in two acidic soils as affected by different rates and application depths of lime.Crossref | GoogleScholarGoogle Scholar |

Gumbs F (1982) Soil and water management features in Trinidad and Guyana. Tropical Agriculture 59, 76–81.

Gumbs F (1987) ‘Soil and water conservation methods for the Caribbean’. (Department of Agriculture Extension, University of the West Indies: Trinidad and Tobago)

Hardy F, Lewis A (1929) A rapid electrometric method for measuring “lime requirements” of soils. Journal of Agricultural Science 19, 17–25.
A rapid electrometric method for measuring “lime requirements” of soils.Crossref | GoogleScholarGoogle Scholar |

Hendershot WH, Laland H, Duquett M (1993) Ion exchange and exchangeable cations. In ‘Soil sampling and methods of analysis. Vol. 19’. (Eds MR Carter, EG Gregorich) pp. 197–206. (CRC Press: Boca Raton, FL, USA)

Holland JE, Bennett AE, Newton AC, White PJ, McKenzie BM, George TS, Pakeman RJ, Bailey JS, Fornara DA, Hayes RC (2018) Liming impacts on soils, crops and biodiversity in the UK: a review. Science of the Total Environment 610–611, 316–332.
Liming impacts on soils, crops and biodiversity in the UK: a review.Crossref | GoogleScholarGoogle Scholar |

Jarvis P, Rey A, Petsikos C, Wingate L, Rayment M, Pereira J, Banza J, David J, Miglietta F, Borghetti M (2007) Drying and wetting of Mediterranean soils stimulates decomposition and carbon dioxide emission: the ‘Birch effect’. Tree Physiology 27, 929–940.
Drying and wetting of Mediterranean soils stimulates decomposition and carbon dioxide emission: the ‘Birch effect’.Crossref | GoogleScholarGoogle Scholar | 17403645PubMed |

Lado M, Ben-Hur M, Shainberg I (2004) Soil wetting and texture effects on aggregate stability, seal formation, and erosion. Soil Science Society of America Journal 68, 1992–1999.
Soil wetting and texture effects on aggregate stability, seal formation, and erosion.Crossref | GoogleScholarGoogle Scholar |

Li Z, Geng Z, Li P, Xiao L, Liu Y (2020) Soil organic matter and glomalin-related soil protein contents do not explain soil aggregate stability after freeze-thaw cycles at contrasting soil moisture contents. Archives of Agronomy and Soil Science 66, 1497–1508.
Soil organic matter and glomalin-related soil protein contents do not explain soil aggregate stability after freeze-thaw cycles at contrasting soil moisture contents.Crossref | GoogleScholarGoogle Scholar |

Mao J, Nierop KG, Dekker SC, Dekker LW, Chen B (2019) Understanding the mechanisms of soil water repellency from nanoscale to ecosystem scale: a review. Journal of Soils and Sediments 19, 171–185.
Understanding the mechanisms of soil water repellency from nanoscale to ecosystem scale: a review.Crossref | GoogleScholarGoogle Scholar |

Mataix-Solera J, Doerr S (2004) Hydrophobicity and aggregate stability in calcareous topsoils from fire-affected pine forests in southeastern Spain. Geoderma 118, 77–88.
Hydrophobicity and aggregate stability in calcareous topsoils from fire-affected pine forests in southeastern Spain.Crossref | GoogleScholarGoogle Scholar |

Moore D, Kostka S, Boerth T, Franklin M, Ritsema C, Dekker L, Oostindie K, Stoof C, Wesseling J (2010) The effect of soil surfactants on soil hydrological behavior, the plant growth environment, irrigation efficiency and water conservation. Journal of Hydrology and Hydromechanics 58, 142–148.
The effect of soil surfactants on soil hydrological behavior, the plant growth environment, irrigation efficiency and water conservation.Crossref | GoogleScholarGoogle Scholar |

Muneer M, Oades J (1989a) The role of Ca-organic interactions in soil aggregate stability. II. Field studies with 14C-labeled straw, CaCO3 and CaSO4.2.H2O. Soil Research 27, 401–409.
The role of Ca-organic interactions in soil aggregate stability. II. Field studies with 14C-labeled straw, CaCO3 and CaSO4.2.H2O.Crossref | GoogleScholarGoogle Scholar |

Muneer M, Oades J (1989b) The role of Ca-organic interactions in soil aggregate stability. III. Mechanisms and models. Soil Research 27, 411–423.
The role of Ca-organic interactions in soil aggregate stability. III. Mechanisms and models.Crossref | GoogleScholarGoogle Scholar |

Nelson DW, Sommers LE (1982) Total carbon, organic carbon, and organic matter. In ‘Methods of soil analysis. Part 2. Chemical and microbiological properties’. (Eds AL Page, RH Miller, DR Keeney) pp. 539–577. (Soil Science Society of America, Inc: Madison, WI, USA)

Nemes A, Rawls WJ, Pachepsky YA (2005) Influence of organic matter on the estimation of saturated hydraulic conductivity. Soil Science Society of America Journal 69, 1330–1337.
Influence of organic matter on the estimation of saturated hydraulic conductivity.Crossref | GoogleScholarGoogle Scholar |

Orfánus T, Dlapa P, Fodor N, Rajkai K, Sándor R, Nováková K (2014) How severe and subcritical water repellency determines the seasonal infiltration in natural and cultivated sandy soils. Soil and Tillage Research 135, 49–59.
How severe and subcritical water repellency determines the seasonal infiltration in natural and cultivated sandy soils.Crossref | GoogleScholarGoogle Scholar |

Piccolo A, Pietramellara G, Mbagwu J (1997) Use of humic substances as soil conditioners to increase aggregate stability. Geoderma 75, 267–277.
Use of humic substances as soil conditioners to increase aggregate stability.Crossref | GoogleScholarGoogle Scholar |

Qadir M, Schubert S (2002) Degradation processes and nutrient constraints in sodic soils. Land Degradation & Development 13, 275–294.
Degradation processes and nutrient constraints in sodic soils.Crossref | GoogleScholarGoogle Scholar |

Rawls W, Nemes A, Pachepsky Y (2004) Effect of soil organic carbon on soil hydraulic properties. Developments in Soil Science 30, 95–114.
Effect of soil organic carbon on soil hydraulic properties.Crossref | GoogleScholarGoogle Scholar |

Rhoades JD (1982) Cation exchange capacity. In ‘Methods of soil analysis. Part 2. Chemical and microbiological properties’. (Eds AL Page, RH Miller, DR Keeney) pp. 149–157. (Soil Science Society of America, Inc: Madison, WI, USA)

Roth C, Pavan M (1991) Effects of lime and gypsum on clay dispersion and infiltration in samples of a Brazilian Oxisol. Geoderma 48, 351–361.
Effects of lime and gypsum on clay dispersion and infiltration in samples of a Brazilian Oxisol.Crossref | GoogleScholarGoogle Scholar |

Sarker TC, Incerti G, Spaccini R, Piccolo A, Mazzoleni S, Bonanomi G (2018) Linking organic matter chemistry with soil aggregate stability: Insight from 13C NMR spectroscopy. Soil Biology and Biochemistry 117, 175–184.
Linking organic matter chemistry with soil aggregate stability: Insight from 13C NMR spectroscopy.Crossref | GoogleScholarGoogle Scholar |

Six J, Bossuyt H, Degryze S, Denef K (2004) A history of research on the link between (micro)aggregates, soil biota, and soil organic matter dynamics. Soil and Tillage Research 79, 7–31.
A history of research on the link between (micro)aggregates, soil biota, and soil organic matter dynamics.Crossref | GoogleScholarGoogle Scholar |

Smith BAM, Eudoxie G, Stein R, Ramnarine R, Raghavan V (2020) Effects of neem leaf inclusion rates on compost physio-chemical, thermal and spectroscopic stability. Waste Management 114, 136–147.
Effects of neem leaf inclusion rates on compost physio-chemical, thermal and spectroscopic stability.Crossref | GoogleScholarGoogle Scholar | 32659686PubMed |

Tisdall JM, Oades JM (1982) Organic matter and water‐stable aggregates in soils. Journal of Soil Science 33, 141–163.
Organic matter and water‐stable aggregates in soils.Crossref | GoogleScholarGoogle Scholar |

Trinidad and Tobago Meteorological Services (2018) Climate of Trinidad and Tobago. Available at http://www.metoffice.gov.tt/Climate [accessed 10 November 2018]

van Schouwenburg JC, Walinga I (1967) The rapid determination of phosphorus in presence of arsenic, silicon and germanium. Analytica Chimica Acta 37, 271–274.
The rapid determination of phosphorus in presence of arsenic, silicon and germanium.Crossref | GoogleScholarGoogle Scholar |

Vogelmann ES, Reichert JM, Prevedello J, Awe GO (2013) Hydro-physical processes and soil properties correlated with origin of soil hydrophobicity. Ciência Rural 43, 1582–1589.
Hydro-physical processes and soil properties correlated with origin of soil hydrophobicity.Crossref | GoogleScholarGoogle Scholar |

Walinga I, Van Der Lee J, Houba V, Van Vark W, Novozamsky I (1995) Digestion in tubes with H2SO4–salicylic acid–H2O2 and selenium and determination of Ca, K, Mg, N, Na, P, Zn. In ‘Plant analysis manual’. pp. 7–45. (Springer: Cham, Switzerland)

Wuddivira M, Camps‐Roach G (2007) Effects of organic matter and calcium on soil structural stability. European Journal of Soil Science 58, 722–727.
Effects of organic matter and calcium on soil structural stability.Crossref | GoogleScholarGoogle Scholar |

Wuddivira M, Ekwue E, Stone R (2010) Modelling slaking sensitivity to assess the degradation potential of humid tropic soils under intense rainfall. Land Degradation & Development 21, 48–57.
Modelling slaking sensitivity to assess the degradation potential of humid tropic soils under intense rainfall.Crossref | GoogleScholarGoogle Scholar |

Wuddivira MN, Stone RJ, Ekwue EI (2009) Structural stability of humid tropical soils as influenced by manure incorporation and incubation duration. Soil Science Society of America Journal 73, 1353–1360.
Structural stability of humid tropical soils as influenced by manure incorporation and incubation duration.Crossref | GoogleScholarGoogle Scholar |

Zheng W, Morris EK, Lehmann A, Rillig MC (2016) Interplay of soil water repellency, soil aggregation and organic carbon. A meta-analysis. Geoderma 283, 39–47.
Interplay of soil water repellency, soil aggregation and organic carbon. A meta-analysis.Crossref | GoogleScholarGoogle Scholar |

Zhu Y, Bennett JM, Marchuk A (2019) Reduction of hydraulic conductivity and loss of organic carbon in non-dispersive soils of different clay mineralogy is related to magnesium induced disaggregation. Geoderma 349, 1–10.
Reduction of hydraulic conductivity and loss of organic carbon in non-dispersive soils of different clay mineralogy is related to magnesium induced disaggregation.Crossref | GoogleScholarGoogle Scholar |