Long-Term Trial of Tillage Systems for Sugarcane: Effect on Topsoil Hydrophysical Attributes

Autor(es)

Martini, Aline Fachin ^[1] ; Valani, Gustavo Pereira ^[1] ; da Silva, Laura Fernanda Simoes ^[2] ; Bolonhezi, Denizart ^[3] ; Di Prima, Simone ^{[4, 5]} ; Cooper, Miguel ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Soil Sci, Luiz de Queiroz Coll Agr, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Sao Carlos UFSCar, Program Agroecol & Rural Dev PPGADR, BR-13600970 Araras, SP - Brazil

^[3] Agron Inst Campinas IAC, Sugarcane Res Ctr, BR-14001970 Ribeirao Preto, SP - Brazil

^[4] Univ Sassari, Dept Agr, I-07100 Sassari - Italy

^[5] Univ Claude Bernard Lyon 1, Univ Lyon, CNRS, ENTPE, LEHNA, UMR 5023, F-69518 Vaulx En Velin - France

• Tipo de documento: Artigo Científico
• Fonte: SUSTAINABILITY; v. 13, n. 6 MAR 2021.
• Citações Web of Science: 0

Resumo

Seeking to provide essential information about sustainable tillage systems, this work aimed to assess the effects of liming and soil cultivation systems on the soil hydrophysical attributes of a long-term cultivated sugarcane field in the tropical region of southeast Brazil. Infiltration tests and soil sampling down to 0.10 m were performed in order to determine saturated soil hydraulic conductivity, soil bulk density, soil total porosity, macroporosity, microporosity, and soil resistance to penetration. The studied areas include no-tillage (NT) and conventional tillage (CT) systems with 0 (CT0 and NT0) and 4 (CT4 and NT4) Mg ha(-1) of lime, and an adjoining area with native forest (NF). The data analysis included an analysis of variance followed by the Tukey test to compare different systems, assessment of the Pearson correlation coefficient between variables, and a principal component analysis of the dataset. The lowest bulk density and highest soil total porosity, macroporosity and saturated hydraulic conductivity were found in the NF. The bulk density in CT4 and NT0 was higher than in other systems, indicating the need for amelioration. NT4 is suggested as the most viable system for conservation agriculture in sugarcane fields, combining the benefits of no-tillage and liming to enhance soil hydrophysical functions. (AU)

• Processo FAPESP: 18/20570-0 - Funcionamento físico-hídrico e biológico de um solo cultivado com cana-de-açúcar sob diferentes sistemas de preparo e manejo do solo
• Beneficiário: Aline Fachin Martíni
• Modalidade de apoio: Bolsas no Brasil - Doutorado