Soil physical properties and grape yield influenced by cover crops and management systems

Revista Brasileira de Ciência do Solo

Jaqueline Dalla Rosa¹  Alvaro Luiz Mafra¹  João Carlos Medeiros¹  Jackson Adriano Albuquerque²  Davi José Miquelluti²  Marcos André Nohatto¹  Evandro Zacca Ferreira¹  Odoni Loris Pereira De Oliveira¹ 

[1] ,Santa Catarina State University Department of Soil and Natural Resources Lages SC ,Brazil

关键词: soil management;    soil structure;    vineyards;    viticulture;    manejo do solo;    estrutura do solo;    vinhedos;    viticultura;   

DOI  :  10.1590/S0100-06832013000500024

来源: SciELO

【 摘 要 】

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.

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