Avaliación da biota edáfica e entomofauna polinizadora en cultivo de trigo " Caaveiro " en convencional vs. ecolóxico

Abstract

The edaphic biota is key to the development of plants. Throughout the soil-plant stratum, it is possible to distinguish up to four compartments, in which the soil, the rhizosphere, the roots and the plant are involved. The abundance and diversity of species in crops are often affected by different factors, such as: management and compartment. The objective of this essay was to assess the management (conventional vs. ecological) and the compartment (air, soil, rhizosphere, roots and plant) effect on the biota and entomofauna present in ‘Caaveiro’ wheat plots. The results showed a greater abundance of bacterial species at the start than at the end of the essay, in conventional versus ecological (although the diversity was similar in both dates and manegements), with a higher abundance and diversity of species in the soil and rhizosphere compartments; reaching in the results of the Adonis test that 73% of these differences were due to the compartment. In the epidaphic fauna, the conventional cultivation plots showed a higher abundance of species but lower diversity indices than the ecological ones. A low presence of aerial entomofauna was detected. It would be necessary to carry out more studies to elucidate the effects on the biota in the cultivation of ‘Caaveiro’ wheat under conventional vs. ecological