ROOT parameters of sugarcane and soil compaction indicators under deep strip tillage and conventional tillage.

Autor: de Lima CC; Soils and Environmental Resources Center, Agronomic Institute of Campinas (IAC), Av. Barão de Itapura, Campinas, SP, 1481 - 13012-970, Brazil., De Maria IC; Soils and Environmental Resources Center, Agronomic Institute of Campinas (IAC), Av. Barão de Itapura, Campinas, SP, 1481 - 13012-970, Brazil., da Silva Guimarães Júnnyor W; Department of Agronomy, State University of Mato Grosso Do Sul (UEMS), Rod 306 MS, 6.4 Km, Cassilândia, Mato Grosso Do Sul, CEP: 79804-970, Brazil. wellingthon.junnyor@uems.br., Figueiredo GC; Department of Soils, Bento Gonçalves, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Rio Grande Do Sul, 91501-970, Brazil., Dechen SCF; Soils and Environmental Resources Center, Agronomic Institute of Campinas (IAC), Av. Barão de Itapura, Campinas, SP, 1481 - 13012-970, Brazil., Bolonhezi D; Sugarcane Center, Agronomic Institute of Campinas (IAC), Rod Antonio Duarte Nogueira, km 321, Ribeirão Preto, SP, 14001-970, Brazil.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2022 Nov 02; Vol. 12 (1), pp. 18537. Date of Electronic Publication: 2022 Nov 02.
DOI: 10.1038/s41598-022-21874-1
Abstrakt: Soil tillage and agricultural traffic generate changes in soil physical attributes and affect the growth of the roots. This study evaluates the impact of system soil tillage on compaction and sugarcane root growth. The experiment was carried out on a Rhodic Kandiudox with two soil tillages (Deep Strip Tillage and Conventional Tillage) and two positions (beds or traffic lane and no traffic lane), totaling four treatments (DST-beds + no traffic lane, DST-traffic lane, CT-no traffic lane and CT-traffic lane). Soil penetration resistance (SPR), bulk density, dry mass, and root system lengths and volumes were evaluated. DST-beds presented lower values for SPR (1.45 MPa) compared to the other treatments (2.55 MPa). This lower SPR did not reflect significant increases in root growth in relation to the DST-traffic lane, meaning that the roots were not confined to the beds. The dry root mass for CT- traffic lane was 35% less than for DST- traffic lane, and CT-no traffic lane reduced of the root dry mass in the layers 0.0-0.2 and 0.2-0.4 m by 62% and 47%, respectively, compared to the DST-beds. Therefore, CT, although widely used, does not create adequate conditions for root development in the first sugarcane cycle, even in lanes with no traffic.
(© 2022. The Author(s).)
Databáze: MEDLINE
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