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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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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
Total Authors: 10
[1] Inst Agron, Ctr Citricultura Sylvio Moreira, Cordeiropolis - Brazil
[2] Univ Fed Sao Carlos, Dept Desenvolvimento Rural, Ctr Ciencias Agr, Araras - Brazil
Total Affiliations: 2
Document type: Journal article
Web of Science Citations: 0

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)

FAPESP's process: 17/24411-0 - Non-tillage and high density planting to Tahiti acid lime grafeted on trifoliata Flying Dragon
Grantee:Raphael Licerre
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 14/21349-4 - Managment of row and interrows of Tahiti acid lime planting: sustainability of production
Grantee:Fernando Alves de Azevedo
Support Opportunities: Regular Research Grants
FAPESP's process: 16/19726-0 - Non-tillage and high density to Tahiti acid lime grafted on trifoliate flying dragon
Grantee:Rodrigo Fernandes de Almeida
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 16/04944-1 - High density and direct planting to Tahiti acid lime grafeted on trifolia Flying Dragon
Grantee:Alexandre Gonçalves Próspero
Support Opportunities: Scholarships in Brazil - Scientific Initiation