Soil attributes and their interralationships in Rio Grande do Sul

  • Leonardo Cesar Pradebon Universidade Regional do Noroeste do Rio Grande do Sul
  • Alexandre Steurer Universidade Regional do Noroeste do Rio Grande do Sul
  • Ivan Ricardo Carvalho Universidade Regional do Noroeste do Rio Grande do Sul
  • Murilo Vieira Loro Universidade Federal de Santa Maria
  • Thalia Aparecida Segatto Universidade Federal de Santa Maria
  • Fernanda San Martin Sanes Universidade Regional do Noroeste do Rio Grande do Sul
  • Marlon Vinícius Sarturi Universidade Regional do Noroeste do Rio Grande do Sul
  • Inaê Carolina Sfalcin Universidade Regional do Noroeste do Rio Grande do Sul
  • Gustavo Henrique Demari Universidade Federal de Pelotas
Keywords: Organic matter, nutrients, base saturation, effective CTC, use of resources, dynamics of the environments

Abstract

The present study aimed to highlight and understand the dynamics of interaction of the levels of soil parameters that are determinant for the expression of crop productivity. The study took place in seven municipalities in the northwest of the state of Rio Grande do Sul (Barra do Guarita, Braga, Derrubadas, Miraguaí, Redentora, Tenente Portela, and Vista Gaúcha), in the year 2017/2018. Soil samples were collected in these environments, with a total of 67 soil samples. Most of the studied soils presented pH above 5,5 with 79% of the samples with CEC between 12 and 18. The values of base saturation in 82% of the soils presented values of 80%, while, for of aluminum saturation, in 87% of the samples the values were 0. As for the contents of organic matter, 60% of the soils presented contents above 2,5% with high and low levels of potassium and phosphorus, respectively. When the levels of potential acidity increase, consequently, there is a reduction in the availability of the main nutrients, micronutrients and the Ca:K ratio. On the other hand, when there is an increase in pH levels, there is a greater availability of nutrients and a reduction in potential acidity and aluminum levels.

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Published
2023-07-11
How to Cite
Pradebon, L. C., Steurer, A., Carvalho, I. R., Loro, M. V., Segatto, T. A., Sanes, F. S. M., Sarturi, M. V., Sfalcin, I. C., & Demari, G. H. (2023). Soil attributes and their interralationships in Rio Grande do Sul. Agronomy Science and Biotechnology, 9, 1-13. https://doi.org/10.33158/ASB.r191.v9.2023

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