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Australasian Plant Pathology

, Volume 30, Issue 2, pp 111–117 | Cite as

Organic amendments as a disease control strategy for soilborne diseases of high-value agricultural crops

  • George LazarovitsEmail author
  • Mario Tenuta
  • Kenneth L. Conn
Article

Abstract

Manures and by-products derived from the processing of plants and animals have been used for centuries as sources of fertiliser, but beneficial or detrimental effects on plant diseases were never thoroughly investigated. We found that certain organic amendments controlled a variety of soilborne diseases of potato (including common scab and verticillium wilt), various pests (including plant parasitic nematodes) and weeds at nine field locations in Ontario and Prince Edward Island, Canada. The mechanism of disease control for highnitrogen-containing amendments is the generation of ammonia and / or nitrous acid following degradation of the amendments by microorganisms. The formation of these products to concentrations lethal to pathogens is regulated by the soil pH, organic matter content, nitrification rate, sand content and buffering capacity. Liquid swine manure reduced scab and wilt, but at only three of six locations tested. In acidic soils, swine manure killed Verticillium dahliae within a day after application, but had no effect in neutral or alkaline soils. The toxic components in the manure were identified as volatile fatty acids. Ammonium lignosulfonate reduced scab at all six sites tested. The mechanism of disease control is not yet known. Although many of these amendments reduced pathogen populations, total soil microorganism numbers increased by 10- to 1000-fold after application, indicating that not all organisms were killed. Understanding the mode of action of amendments is essential for the improvement of their effectiveness and assimilation into crop production systems. If costs can be decreased and benefits ensured, organic amendments will have a major role in reducing plant diseases. The discussion on use of these amendments is based on cost/ benefit analysis as well as societal and regulatory considerations.

Keywords

Volatile Fatty Acid Bovine Spongiform Encephalopathy Organic Amendment Verticillium Wilt Poultry Manure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Akhtar M, Malik A (2000) Roles of organic soil amendments and soil organisms in the biological control of plant-parasitic nematodes: a review. Bioresource Technology 74, 5–47.CrossRefGoogle Scholar
  2. Aryantha IP, Cross R, Guest DI (2000) Suppression of Phytopthora cinnamomi in potting mixes amended with uncomposted and composted animal manures. Phytopathology 90, 775–782.CrossRefPubMedGoogle Scholar
  3. Bell AA, Hubbard JC, Liu L, Davis RR, Subbarao-Krishna V (1998) Effects of chitin and chitosan on the incidence and severity of fusarium yellows of celery. Plant Disease 82, 322–328.CrossRefGoogle Scholar
  4. Blok WJ, Lamers JG, Termorshuizen AJ, Bollen GJ (2000) Control of soilborne plant pathogens by incorporating fresh organic amendments followed by tarping. Phytopathology 90, 253–259.CrossRefPubMedGoogle Scholar
  5. Candole BL, Rothrock CS (1997) Characterization of the suppressiveness of hairy vetch-amended soils to Thielaviopsis basicola. Phytopathology 87, 197–202.CrossRefPubMedGoogle Scholar
  6. Chun D, Lockwood JL (1985) Reductions of Pythium ultimum, Thielaviopsis basicola, and Macrophomina phaseolina populations in soil associated with ammonia generated from urea. Plant Disease 69, 154–158.Google Scholar
  7. Conn KL, Lazarovits G (1999) Impact of animal manures on verticillium wilt, potato scab, and soil microbial populations. Canadian Journal of Plant Pathology 21, 81–92.Google Scholar
  8. Conn KL, Lazarovits G (2000) Soil factors influencing the efficacy of liquid swine manure added to soil to kill Verticillium dahliae. Canadian Journal of Plant Pathology 22, 400–406.CrossRefGoogle Scholar
  9. DePasquale DA, Montville TJ (1990) Mechanism by which ammonium bicarbonate and ammonium sulfate inhibit mycotoxigenic fungi. Applied and Environmental Microbiology 56, 3711–3717.PubMedGoogle Scholar
  10. Drinkwater LE, Letourneau DK, Workneh F, van Bruggen AHC, Shennan C (1995) Fundamental differences between conventional and organic tomato agroecosystems in California. Ecological Applications 5, 1098–1112.CrossRefGoogle Scholar
  11. Dutta BK, Isaac I (1979) Effects of organic amendments to soil on the rhizosphere microflora of antirrhinum infected with Verticillium dahliae Kleb. Plant and Soil 53, 99–103.CrossRefGoogle Scholar
  12. Gamliel A (2000) Soil amendments: a non chemical approach to the management of soilborne pest. Acta Horticulturae 532, 39–47.Google Scholar
  13. Gilpatrick JD (1969) Role of ammonia in the control of avocado root rot with alfalfa meal soil amendment. Phytopathology 18, 375–382.Google Scholar
  14. Hader Y, Mandelbaum R, Gorodecki B (1992) Biological control of soilborne plant pathogens by suppressive compost. In ‘Biological control of plant diseases’. (Eds ES Tjamos, GC Papavizas and RJ Cook) pp. 79–83. (Plenum Press: New York)Google Scholar
  15. Hampson MC, Coombes JW (1995) Reduction of potato wart disease with crushed crabshell: suppression or eradication. Canadian Journal of Plant Pathology 17, 69–74.CrossRefGoogle Scholar
  16. Hawke MA, Lazarovits G (1994) Production and manipulation of individual microsclerotia of Verticillium dahliae for use in studies of survival. Phytopathology 84, 883–890.CrossRefGoogle Scholar
  17. Hayashida S, Choi M-Y, Nanri N, Miyaguchi M (1988) Production of potato common scab-antagonistic biofertilizer from swine feces with Streptomyces albidoflavus. Agricultural and Biological Chemistry 52, 2397–2402.Google Scholar
  18. Hoitink HAJ, Boehm MJ, Hadar Y (1993) Mechanisms of suppression of soilborne plant pathogens in compost-amended substrates. In ‘Science and engineering of composting’. (Eds HAJ Hoitink and HM Keener) pp. 601–621. (Renaissance Publication: Worthington, OH)Google Scholar
  19. Hooker WJ (1981) Common scab. In ‘Compendium of potato diseases’ (Ed WJ Hooker) pp. 33–34. (APS Press: St. Paul, Minnesota)Google Scholar
  20. Huber DM, Watson RD (1970) Effect of organic amendment on soilborne plant pathogens. Phytopathology 60, 22–26.CrossRefGoogle Scholar
  21. Jordan VWL, Sneh B, Eddy BP (1972) Influence of organic soil amendments on Verticillium dahliae and on the microbial composition of the strawberry rhizosphere. Annals of Applied Biology 70, 139–148.CrossRefGoogle Scholar
  22. Kaplan M, Noe JP (1993) Effects of chicken-excrement amendments on Meloidogyne arenaria. Journal of Nematology 25, 71–77.PubMedGoogle Scholar
  23. Keinath AP, Loria R (1989) Management of common scab of potato with plant nutrients. In ‘Soilborne plant pathogens: Management of diseases with macro- and microelements’. (Ed. AW Engelhard) pp. 152–166. (APS Press: St. Paul, Minnesota)Google Scholar
  24. Lazarovits G, Conn KL (1997) Assessment of the influence of manures for the control of soil-borne pests including fungi, bacteria, and nematodes. Canada-Ontario Agriculture Green Plan, COESA Report No.: RES/MAN-010/97. http://res.agr.ca/lond/gpres/ reporlst.htmlGoogle Scholar
  25. Lazarovits G, Conn KL, Potter J (1999) Reduction of potato scab, verticillium wilt, and nematodes by soymeal and meat and bone meal in two Ontario potato fields. Canadian Journal of Plant Pathology 21, 345–353.CrossRefGoogle Scholar
  26. Loffler HJM, Cohen EB, Oolbekkink GT, Schippers B (1986) Nitrite as a factor in the decline of Fusarium oxysporum f. sp. dianthi in soil supplemented with urea or ammonium chloride. Netherlands Journal of Plant Pathology 92, 153–162.CrossRefGoogle Scholar
  27. Lumsden RD, Lewis JA, Papavizas GC (1983) Effect of organic amendments on soilborne plant diseases and pathogen antagonists. In ‘Environmentally sound agriculture’. (Ed. W. Loceretz) pp. 51–70. (Praeger: New York)Google Scholar
  28. Mian IH, Rodríguez-Kábana R (1982) Survey of the nematicidal properties of some organic materials available in Alabama as amendments to soil for control of Meloidogyne arenaria. Nematropica 12, 235–246.Google Scholar
  29. Michel VV, Mew TW (1998) Effect of a soil amendment on the survival of Ralstonia solanacearum in different soils. Phytopathology 88, 300–305.CrossRefPubMedGoogle Scholar
  30. Muchovej RMC, Pacovsky RS (1997) Future directions of by-products and wastes in agriculture. In ‘Agricultural uses of by-products and wastes’. (Eds JE Rechcigl and H.C MacKinnon) pp. 1–19. ACS Symposium Series. (American Chemical Society Washington, D.C.)CrossRefGoogle Scholar
  31. Oka Y, Chet I, Spiegel Y (1993) Control of the rootknot nematode Meloidogyne javanica by Bacillus cereus. Biocontrol Science and Technology 3, 115–156.CrossRefGoogle Scholar
  32. Pennypacker BW (1989) The role of mineral nutrition in the control of verticillium wilt. In ‘Soilborne plant pathogens: Management of diseases with macro- and microelements’ (Ed. AW Engelhard) pp. 32–45. (APS Press: St. Paul, Minnesota)Google Scholar
  33. Punja ZK, Grogan RG (1982) Effects of inorganic salts, carbonatebicarbonate anions, ammonia, and the modifying influence of pH on sclerotial germination of Sclerotium rolfsii. Phytopathology 72, 635–639.CrossRefGoogle Scholar
  34. Rodríguez-Kábana R (1986) Organic and inorganic nitrogen amendments to soil as nematode suppressants. Journal of Nematology 18, 129–135.PubMedGoogle Scholar
  35. Sawant DM, Dhumal SS, Kadam SS (1991) Production. In ‘Potato: Production, processing, and products’ (Eds DK Salunkhe, SS Kadam and SJ Jadhav) pp. 37–68. (CRC Press: Boca Raton, FL)Google Scholar
  36. Shetty KG, Subbarao KV, Huisman OC, Hubbard JC (2000) Mechanism of broccoli-mediated Verticillium wilt reduction in cauliflower. Phytopathology 90, 305–310.CrossRefPubMedGoogle Scholar
  37. Smiley RW, Cook RJ, Papendick RI (1970) Anhydrous ammonia as a soil fungicide against Fusarium and fungicidal activity in the ammonia retention zone. Phytopathology 60, 1227–1232.CrossRefGoogle Scholar
  38. Tenuta M (2001) Nitrogen transformation products from nitrogenous amendments and soil properties affecting their toxicity to Verticillium dahliae Kleb. Ph.D. Thesis, University of Western Ontario, London, Ont.Google Scholar
  39. Tenuta M, Conn KL, Hill JL, Hobbs SK, Lazarovits GL (1998) Organic amendments for the control of soil-borne plant pathogens: an economic case study for Ontario. Phytoparasitica 26, 262.Google Scholar
  40. Trankner A (1992) Use of agricultural and municipal organic wastes to develop suppressiveness to plant pathogens. In ‘Biological control of plant diseases’ (Eds ES Tjamos, GC Papavizas and RJ Cook) pp. 35–42. (Plenum Press: New York)Google Scholar
  41. Tsao PH, Oster JJ (1981) Relation of ammonia and nitrous acid to suppression of Phytophthora in soils amended with nitrogenous organic substances. Phytopathology 71, 53–59.CrossRefGoogle Scholar
  42. Zakaria MA, Lockwood JL (1980) Reduction in Fusarium populations in soil by oilseed meal amendments. Phytopathology 70, 240–243.CrossRefGoogle Scholar

Copyright information

© Australasian Plant Pathology Society 2001

Authors and Affiliations

  • George Lazarovits
    • 1
    Email author
  • Mario Tenuta
    • 1
  • Kenneth L. Conn
    • 1
  1. 1.Agriculture and Agri-Food CanadaSCPFRCLondonCanada

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