Fifteen years of no till increase soil organic matter, microbial biomass and arthropod diversity in cover crop-based arable cropping systems
Tóm tắt
The physical, chemical and biological properties of soil may be modified by tillage, fertilization and cover crops. However there is little knowledge on long-term effects on soil properties, notably under Mediterranean climate. Moreover, biological indicators such as micro-arthropods can be used for a cost-effective analysis of soil biodiversity. Here, we studied physical and biological properties of a sandy loam soil in central Italy under a 4-year rotation of maize–durum wheat–cover crop–sunflower–durum wheat–cover crop during 15 years. We analysed the effects of two tillage systems, conventional tillage (CT) and no-tillage (NT); two N fertilization rates, without N and medium N level; and three soil covers: cash crop residue as control, Brassica juncea and Vicia villosa. Results show that no tillage increased soil organic matter content in the upper 10-cm layer (3.31%) compared to the conventional tillage (2.19%). No tillage also improved structure stability and lowered bulk density in the same soil profile. No-tillage systems showed higher soil microbial biomass (+71%) and respiration (+44%), and a higher abundance and diversity of micro-arthropods. We conclude that no tillage is an effective measure to improve the physical and biological quality of soil in Mediterranean conditions. No-tillage positive effect can be enhanced by the right choice of N fertilization and cover crop cultivation. Bio-indicators such as micro-arthropods can be very predictive of soil habitability by organisms.
Tài liệu tham khảo
Alef K (1995) Soil Respiration. In: Alef K, Nannipieri P (eds) Methods in Applied Soil Microbiology and Biochemistry. Academic Press Limited, London, pp 214–219
Alvarez R, Steinbach HS (2009) A review of the effects of tillage systems on some soil physical properties, water content, nitrate availability and crops yield in the Argentine Pampas. Soil & Tillage Research 104:1–15
Balota EL, Colozzi-Filho A, Andrade DS, Dick RP (2003) Microbial biomass in soils under different tillage and crop rotation systems. Biology and Fertility of Soils 38:15–20
Cambardella CA, Elliott ET (1993) Carbon and Nitrogen Distribution in Aggregates from Cultivated and Native Grassland Soils. Soil Science Society of America Journal 57:1071–1076
Cannell RQ, Hawes JD (1994) Trends in tillage practices in relation to sustainable crop production with special reference to temperate climates. Soil & Tillage Research 30:245–282
Chenu C, Bissonnais YL, Arrouays D (2000) Organic matter influence on clay wettability and soil aggregate stability. Soil Science Society of America Journal 64:1479–1486
CoHort S (2002) CoStat Software. www.cohort.com, Monterey, California, USA
Dabney SM, Delgado JA, Reeves DW (2001) Using winter cover crops to improve soil and water quality. Communications in Soil Science and Plant Analysis 32(7):1221–1250
De Goede RGM, Brussaard L (2002) Soil zoology: An indispensable component of integrated ecosystem studies. European Journal of Soil Biology 38(1):1–6
Gomez K, Gomez A (1984) Statistical procedures for agricultural research. John Wiley & Sons, New York, USA
Hao X, Ball BC, Culley JLB, Carter MR, Parkin GW (2006) Soil Density and Porosity, in: M.R. Carter, E.G. Gregorich (Eds.), Soil Sampling and Method of Analysis, Canadian Society of Soil Science
Hazarika S, Parkinson R, Bol R, Dixon L, Russell P, Donovan S, Allen D (2009) Effect of tillage system and straw management on organic matter dynamics. Agronomy for Sustainable Development 29(4):525–533
Hungria M, Franchini JC, Brandao-Junior O, Kaskhuk G, Souza RA (2009) Soil microbial activity and crop sustainability in a long-term experiment with thre soil-tillage and two crop-rotation systems. Applied Soil Ecology 42:288–296
Kemper WD, Rosenau RC (1986) Aggegate stability and size distribution. In: Klute A (ed) Methods of Soil Analysis, Part I. Soil Science Socity of America, Madison, WI, pp 425–442
Kladivko EJ, Griffith DR, Mannering JV (1986) Conservation tillage effects on soil properties and yield for corn and soybeans in Indiana. Soil & Tillage Research 8:277–287
Lal R (2004) Soil carbon sequestration to mitigate climate change. Geoderma 123:1–22
Magurran AE (2004) Measuring biological diversity. Blackwell publishing Company ISBN-31:978-0-632-05633-0
Malhi SS, Lemke R (2007) Tillage, crop residue and N fertilizer effects on crop yield, nutrient uptake, soil quality and nitrous oxide gas emissions in a second 4-yr rotation cycle. Soil & Tillage Research 96:269–283
Mazzoncini M, Sapkota TB, Bàrberi P, Antichi D, Risaliti R (2011) Long-term effect of tillage, nitrogen fertilization and cover crops on soil organic carbon and total nitrogen content. Soil and Tillage Research 114(2):165–174
Mikha MM, Rice CW (2004) Tillage and manure effects on soil and aggregate-associated carbon and nitrogen soil. Science Society of America Journal 68:809–816
Nelson DW, Sommers LE (1982) Total Carbon, Organic Carbon and Organic Matter. In: Page AL (ed) Methods of Soil Analysis, Part 2, American Society of Agronomy, Soil Science Society of America. Publisher, Madison, Wisconsin, USA, Inc, pp 539–579
Pagliai M, Torri D, Patruno A (1997) Stabilità e distribuzione dimensionale degli aggregati. Cap. V. In : Metodi di analisi fisica del suolo. Ed. Franco Angeli
Paoletti MG, Favretto MR, Stinner BR, Purrington FF, Bater JE (1991) Invertebrates as bioindicators of soil use. Agriculture Ecosystems & Environment 34:341–362
Parisi V, Menta C, Gardi C, Jacomini C, Mozzanica E (2005) Microarthropod communities as a tool to assess soil quality and biodiversity: a new approach in Italy. Agriculture, Ecosystems and Environment 105:323–333
Pedrotti A, Pauletto EA, Crestana S, Holanda FSR, Cruvinel PE, Vaz CMP (2005) Evaluation of bulk density of Albaqualf soil under different tillage systems using the volumetric ring and computerized tomography methods. Soil & Tillage Research 80:115–123
Reicosky DC, Kemper WD, Langdale GW, Douglas Jr CL, Rasmussen PE (1995) Soil organic matter changes resulting from tillage and biomass production, J.Soil Water Conserv, 253-261
Silvestri N, Bellocchi G (2007) Designing sustainable cropping systems: a general framework. In: Farming Systems Design 2007, Int. Symposium on Methodologies on Integrated Analysis on Farm production Systems, 119-120. La Goliardica Pavese s.r.l., Pavia (IT).
Tisdall JM, Oades JM (1982) Organic matter and water-stable aggregates in soils. Journal of Soil Science 33:141–163
Vance ED, Brookes PC, Jenkinson DS (1987) An extraction method for measuring soil microbial biomass C. Soil Biology & Biochemistry 6:703–770
Wardle DA (1995) Impacts of disturbance on detritus food webs in agro-ecosystems of constrasting tillage and weed management practices. In: Begon M, Fitter AH (eds) Advances in Ecological Research. Academic, New York, pp 105–185