Year 2018, Volume 3, Issue 3

Year : 2018
Volume : 3
Issue : 3
   
Authors : Manuel MORENO-GARCÍA, Miguel Ángel REPULLO-RUIBÉRRIZ DE TORRES, Rosa María CARBONELL-BOJOLLO, Rafaela ORDÓÑEZ-FERNÁNDEZ
Title : COMPARATIVE BIODIVERSITY BETWEEN NO-TILL AND CONVENTIONAL TILL ON A CROP ROTATION
Abstract : The technological development that agriculture has suffered in recent decades has affected biological diversity in agricultural fields. In particular, the life on the soil surface, that is mainly constituted by invertebrates. This loss of biodiversity entails the disappearance of natural processes that this organisms support. For this reason, it is necessary to implement agronomic management that reduces impacts on agricultural soils. One of these alternatives is no-tillage system, which is characterized by the absence of soil ploughing and the maintenance of crop residues on soil surface. In this sense, the present work has compared the existing biodiversity in a crop rotation (sunflower-wheat-legume) between plots under no-tillage and plots under conventional tillage systems. With this objective, insects, arachnids, crustaceans and myriapods have been captured through pitfall traps. Four plots have been sampled, 2 under no-tillage and 2 under conventional tillage. In each plot have been placed 4 sampling areas, consisting of 5 pitfall traps each. The catches made have shown higher biodiversity values in no-tillage compared to conventional tillage. These differences have been significantly higher in terms of number of species captured and with respect to the biodiversity indices of Margalef, Simpson and Shannon. However, the increases in number of individuals captured has not been significant as well as the uniformity indices of Pielou and Simpson.
For citation : Moreno-García, M., Repullo-Ruibérriz De Torres, M. A., Carbonell-Bojollo, R. M., Ordóñez-Fernández, R. (2018). Comparative biodiversity between no-till and conventional till on a crop rotation. AGROFOR International Journal, Volume 3. Issue No. 3. pp. 114-121. DOI: 10.7251/AGRENG1803114M
Keywords : Biodiversity, Arthropods, No tillage, Biodiversity indices, Pitfall traps
   
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