No-Tillage and High-Density Planting for Tahiti Acid Lime Grafted Onto Flying Dragon Trifoliate Orange

Autor(es)

de Azevedo, Fernando Alves ^[1] ; de Almeida, Rodrigo Fernandes ^[1] ; Martinelli, Rodrigo ^[1] ; Prospero, Alexandre Goncalves ^[1] ; Licerre, Raphael ^[1] ; da Conceicao, Patricia Marluci ^[2] ; Costa Arantes, Ana Carolina ^[1] ; Dovis, Veronica Lorena ^[1] ; Boaretto, Rodrigo Marceli ^[1] ; Mattos Jr, Dirceu

Afiliação do(s) autor(es)

^[1] Inst Agron, Ctr Citricultura Sylvio Moreira, Cordeiropolis - Brazil

^[2] Univ Fed Sao Carlos, Dept Desenvolvimento Rural, Ctr Ciencias Agr, Araras - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FRONTIERS IN SUSTAINABLE FOOD SYSTEMS; v. 4, JUL 16 2020.
• Citações Web of Science: 0

Resumo

The management of soil cover plants (intercropping) in orchards can contribute to increase productivity of citrus trees. Thus, the present research aimed to evaluate different planting systems for Tahiti acid lime grafted onto Flying Dragon trifoliate orange, a dwarfing rootstock, at high planting density (1,157 trees ha(-1)). The study was set up in four tillage systems, usingUrochloa ruziziensisas an intercrop species in the orchard, and conducted for 5 years: no-tillage (NT), no-tillage and no-herbicide (NT-NH), minimum tillage (MT) and conventional tillage (CT; without intercropping). Dry matter (DM) production of biomass in the row and interrow of the orchard was evaluated yearly, as well as weed density, soil physical and chemical characteristics, plant water and nutritional status, and fruit yield of trees. Greater deposition of DM of biomass was observed in the row of citrus planting for treatments NT and NT-NH compared to CT and MT treatments, which led to reduced undesirable weed populations. The NT treatment also provided increases of 79% in potassium (K) nutrient concentrations in the leaves of trees and 60% in exchangeable K in the soil surface layer, in the first 2 years evaluated. The maintenance of theUrochloa ruziziensismulch in the NT system also provided higher soil volumetric moisture content and consequently lower soil resistance penetration and water stress on trees, evidenced by the predawn plant leaf water potential (<1 MPa). Moreover, the NT treatment provided an average increase of 56% of fruit yield from trees compared to the CT treatment during three harvests. This long-term study demonstrated the contribution of the no-tillage system using a favorable cover crop to increase the yield of Tahiti acid lime fruits and maintain the soil quality most required for the sustainability of citrus production. (AU)

• Processo FAPESP: 17/24411-0 - Plantio direto e adensado para lima ácida Tahiti enxertada em trifoliata Flying Dragon
• Beneficiário: Raphael Licerre
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 14/21349-4 - Manejo da entrelinha e linha de plantio da lima ácida Tahiti: sustentabilidade da produção
• Beneficiário: Fernando Alves de Azevedo
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/19726-0 - Plantio direto e adensado para lima ácida Tahiti enxertada em trifoliata Flying dragon
• Beneficiário: Rodrigo Fernandes de Almeida
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 16/04944-1 - Plantio direto e adensado para lima ácida Tahiti enxertada em trifoliata Flying Dragon
• Beneficiário: Alexandre Gonçalves Próspero
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica