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The use of organic certified compost to control soilborne diseases caused by Phytophthora spp.

Pugliese, Massimo; Gullino, M. Lodovica and Garibaldi, Angelo (2008) The use of organic certified compost to control soilborne diseases caused by Phytophthora spp. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Soilborne pathogens can cause serious damages to economically important crops. Control of these diseases has traditionally depended upon rotations and soil quality improvement strategies. Compost has shown a suppressive activity against soilborne pathogens, and its use may decrease the severity of root rot diseases, optimize waste recycling and increase yields in organic farming. An organic certified compost produced from biowaste, green and yard wastes in a composting plant in the North-West of Italy, has been analysed for its suppressiveness against Phytophthora disease. The organic certified compost has been compared with a conventional compost produced in the same composting plant and with a peat substrate. In the first group of trials, composts maturity and quality have been estimated using Wood’s End Lab’s “Solvita” Compost Maturity Test Kit, and germination and plant grown bioassays. In a second group of trials, the organic certified compost, has been assessed for its suppressive activity in greenhouse against Phytophthora nicotianae on tomato and Phytophthora capsici on zucchini. In a third group of trials, compost was used alone or enriched with microorganism of the fungal genus Trichoderma and the suppressiveness in open field towards Phytophthora capsici on pepper has been evaluated. Organic certified compost quality was comparable to peat quality. Organic certified compost showed to have a disease suppressive activity in greenhouse, compared to peat amendment, against Phytophthora spp.. The disease suppresiveness of certified compost reached 76% in the case of tomato. The results were not confirmed in open field, even when compost was enriched with Trichoderma spp.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:wastes, suppressiveness, soil biodiversity, Phytophthora spp., Trichoderma spp.
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Composting and manuring
Research affiliation: Italy > Univ. Torino
International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 2.6 Crop health and weed management
Deposited By: Pugliese, Dr. Massimo
ID Code:12067
Deposited On:07 Oct 2008
Last Modified:12 Apr 2010 07:36
Document Language:English
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674

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