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Revista de Ciências Agrárias
Print version ISSN 0871-018XOn-line version ISSN 2183-041X
Abstract
INACIO, Maria Lurdes et al. Nematodes as soil status bioindicators: MaisSolo project. Rev. de Ciências Agrárias [online]. 2022, vol.45, n.4, pp.1121-1130. Epub Dec 01, 2022. ISSN 0871-018X. https://doi.org/10.19084/rca.28758.
The intensive horticultural production systems in Ribatejo (central Portugal) are mostly based in monoculture with a high degree of technical intervention. In the project MaisSolo, a consortium comprising growers, farmers’ associations, researchers and academia, we aimed to demonstrate that the introduction of cover crops will help to improve soil structure and soil water properties (water infiltration and retention), enhance nutrient recycling and reduce agrochemical needs, with impact on pests and diseases cycle break. Nematodes inhabit all type of soils and are often used as soil status bioindicators. In this work, the evaluation of nematode communities was used to assess the effects on soil status of the proposed alternative practices: 1) biodiverse mixture of grasses and legumes 2) annual ryegrass and 3) biofumigation (forage turnip). In the control plot no cover crop was set.
At the end of the 4-year experimental period, the number of free-living nematodes increased in all treatments compared with the control plot, namely the bacteriophagous group, in the mixture treatment, indicating an improvement in the organic matter content of each plot.
Keywords : Nematofauna, biological indicators, soil; agrobiodiversity.