| Full text | |
| Author(s): |
Gustavo Soares de Souza
[1]
;
Zigomar Menezes de Souza
[2]
;
Reginaldo Barboza da Silva
[3]
;
Ronny Sobreira Barbosa
[4]
;
Fernando Silva Araújo
[5]
Total Authors: 5
|
| Affiliation: | [1] Espirito Santo State Inst Res Tech Assistance & R, BR-29915140 Linhares, ES - Brazil
[2] Univ Campinas FEAGRI UNICAMP, BR-13083875 Campinas, SP - Brazil
[3] Univ Estadual Paulista Julio de Mesquita Filho UN, Unidade Registro, BR-11900000 Registro, SP - Brazil
[4] Sao Paulo State Univ FCAV UNESP, BR-14870900 Jaboticabal, SP - Brazil
[5] Federal University of Piauí - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Revista Brasileira de Ciência do Solo; v. 38, n. 1, p. 135-146, 2014-02-00. |
| Abstract | |
The cultivation of sugarcane with intensive use of machinery, especially for harvest, induces soil compaction, affecting the crop development. The control of agricultural traffic is an alternative of management in the sector, with a view to preserve the soil physical quality, resulting in increased sugarcane root growth, productivity and technological quality. The objective of this study was to evaluate the physical quality of an Oxisol with and without control traffic and the resulting effects on sugarcane root development, productivity and technological quality. The following managements were tested: no traffic control (NTC), traffic control consisting of an adjustment of the track width of the tractor and sugarcane trailer (TC1) and traffic control consisting of an adjustment of the track width of the tractor and trailer and use of an autopilot (TC2). Soil samples were collected (layers 0.00-0.10; 0.10-0.20 and 0.20-0.30 m) in the plant rows, inter-row center and seedbed region, 0.30 m away from the plant row. The productivity was measured with a specific weighing scale. The technological variables of sugarcane were measured in each plot. Soil cores were collected to analyze the root system. In TC2, the soil bulk density and compaction degree were lowest and total porosity and macroporosity highest in the plant row. Soil penetration resistance in the plant row, was less than 2 MPa in TC1 and TC2. Soil aggregation and total organic carbon did not differ between the management systems. The root surface and volume were increased in TC1 and TC2, with higher productivity and sugar yield than under NTC. The sugarcane variables did not differ between the managements. The soil physical quality in the plant row was preserved under management TC1 and TC2, with an improved root development and increases of 18.72 and 20.29 % in productivity and sugar yield, respectively. (AU) | |
| FAPESP's process: | 08/09232-3 - Traffic control in area cultivated with sugarcane |
| Grantee: | Zigomar Menezes de Souza |
| Support Opportunities: | Regular Research Grants |