Soil physical properties and grape yield influenced by cover crops and management systems
| Autor: | Jaqueline Dalla Rosa, Alvaro Luiz Mafra, João Carlos Medeiros, Jackson Adriano Albuquerque, Davi José Miquelluti, Marcos André Nohatto, Evandro Zacca Ferreira, Odoni Loris Pereira de Oliveira |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Revista Brasileira de Ciência do Solo, Vol 37, Iss 5, Pp 1352-1360 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1806-9657 0100-0683 |
| DOI: | 10.1590/S0100-06832013000500024 |
| Popis: | The use of cover crops in vineyards is a conservation practice with the purpose of reducing soil erosion and improving the soil physical quality. The objective of this study was to evaluate cover crop species and management systems on soil physical properties and grape yield. The experiment was carried out in Bento Gonçalves, RS, Southern Brazil, on a Haplic Cambisol, in a vineyard established in 1989, using White and Rose Niagara grape (Vitis labrusca L.) in a horizontal, overhead trellis system. The treatments were established in 2002, consisting of three cover crops: spontaneous species (SS), black oat (Avena strigosa Schreb) (BO), and a mixture of white clover (Trifolium repens L.), red clover (Trifolium pratense L.) and annual rye-grass (Lolium multiflorum L.) (MC). Two management systems were applied: desiccation with herbicide (D) and mechanical mowing (M). Soil under a native forest (NF) area was collected as a reference. The experimental design consisted of completely randomized blocks, with three replications. The soil physical properties in the vine rows were not influenced by cover crops and were similar to the native forest, with good quality of the soil structure. In the inter-rows, however, there was a reduction in biopores, macroporosity, total porosity and an increase in soil density, related to the compaction of the surface soil layer. The M system increased soil aggregate stability compared to the D system. The treatments affected grapevine yield only in years with excess or irregular rainfall. |
| Databáze: | Directory of Open Access Journals |
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