Interrill erodibility of different sandy soils increases along a catena in the Caiuá Sandstone Formation

Abstract

How to cite: Thomaz EL and Fidalski J. Interrill erodibility of different sandy soils increases along a catena in the Caiuá Sandstone Formation. Rev Bras Cienc Solo. 2020;44:e0190064.

Physical quality of sandy soils under orange orchards in Southern Brazil

“…These soils are formed by rocks belonging to the Caiuá Group, which is formed by the Paraná River, Goioerê and Santo Anastácio geological formations (Etchebehere et al, 2007), and referred to locally as the Arenito Caiuá. The classes of soils representative of Caiuá group are the Ferralsols, Lixisols and Arenosols which are in catenas located between the water divisions up to the drainage networks and are characterized, in the same sequence, by an increase in sand content in the superficial layer (Thomaz and Fidalski, 2020). These soils are predominantly fine sands, providing weak aggregation and low water retention capacity (Fidalski and Helbel Junior, 2020).…”

“…Studies carried out in orange orchards on Ferralsol and Lixisol sandy soils have found that soil resistance to penetration (PR) was the physical property that most often reduces the least limiting water range (LLWR), mainly in pastures areas (Flávio Neto et al, 2015;Benevenute et al, 2020). In this context, these Ferralsols and Lixisols are differentiated by the presence of Bw and Bt horizons, in which different proportions of sand contents in the surface layer were verified (Fidalski and Helbel Junior, 2020;Thomaz and Fidalski, 2020). The reference bulk density has been frequently used to evaluate the degree of compaction (Dc) under different soils and management systems (Etana et al, 1999;Reichert et al, 2009).…”

Is cassava yield affected by inverting tillage, chiseling or additional compaction of no-till sandy-loam soil?

“…Soil chiseling is a tillage method used to reduce surface soil compaction in no-tillage systems by reducing soil bulk density and enhancing pore space (Cavalieri et al, 2006;Klein and Camara, 2007;Fasinmirin and Reichert, 2011;Awe et al, 2020;Reichert et al, 2020a;França et al, 2021;Reichert et al, 2021a;Rosa et al, 2021). Conventional tillage, the traditional tillage method used for cassava (Santos et al, 2020;Thomaz and Fidalski, 2020), is another option for decreasing soil compaction, but the excessive disturbance from soil inverting and mixing by plowing and disking causes undesirable effects such as soil disaggregation, with further exposion to rainfall impact (Lima et al, 2015), especially in sandy soils that are highly prone to erosion (Cantalice et al, 2005;Silva et al, 2020;Thomaz and Fidalski, 2020). In Brazil and elsewhere, the different tillage methods have been evaluated for soil compaction by quantifying the limiting soil bulk density and the performance of several crops (Suzuki et al, 2007;Reinert et al, 2008;Reichert et al, 2009a;Secco et al, 2009;Suzuki et al, 2013;Mentges et al, 2016;Moraes et al, 2019;Reichert et al, 2016aReichert et al, , 2017Reichert et al, , 2018Ambus et al, 2018;Andognini et al, 2020;Reichert et al, 2021a,b).…”

Implicações do uso do solo na ocorrência de feições erosivas em São Pedro (SP)

“…A erosão é um processo que põe em risco as atividades agrícolas, se revelando como uma ameaça à subsistência humana e à civilização (TRIMBLE & CROSSON 2000. A perda de solo ocasiona a redução das taxas de infiltração e do armazenamento da água, o que limita a disponibilidade e a distribuição de água e nutrientes para o cultivo (CROSSON 1995, THOMAZ & FIDALSKI 2020. Embora a erosão seja um processo natural condicionado por características litológicas, pedológicas, geomorfológicas e climatológicas, a ação antrópica tem também importância, pois práticas inadequadas de uso, manejo e tipo de ocupação do solo podem potencializar a instalação e a evolução dos processos (LOHMANN & SANTOS 2005, MEYLES et al 2006.…”