EFFECT OF STRAW MULCHING ON SOIL TEMPERATURE AND LETTUCE PRODUCTIVITY

Autores

  • Daiane Karine Grellmann daiane-grellmann@uergs.edu.br
  • Mastrângello Enívar Lanzanova mastrangello-lanzanova@uergs.edu.br
  • Danni Maisa da Silva danni-silva@uergs.edu.br
  • Eduardo Lorensi de Souza eduardo-souva@uergs.edu.br
  • Divanilde Guerra divanilde-guerra@uergs.edu.br
  • Marcus Vinicius Sperandio marcus-sperandio@uergs.edu.br

Resumo

This study evaluated the effects of straw mulching on soil temperature and the productivity of two lettuce cultivars (Lactuca sativa L.) under a no-tillage system. The experiment was conducted in Três Passos, RS, Brazil, during the winter of 2024, using a randomized block design in a bifactorial arrangement. The variables analyzed included soil temperature, plant diameter, fresh mass, and dry mass. The results showed that straw mulching reduced soil thermal amplitude, providing a more stable environment for plant development. However, the presence of straw significantly reduced dry mass accumulation, possibly due to increased soil moisture retention. A significant effect was observed on the diameter of butterhead lettuce under straw mulch, whereas the crisphead cultivar showed no expressive variations. It is concluded that straw mulching represents a viable and sustainable alternative for lettuce cultivation, particularly in small-scale farming systems, by enhancing crop resilience to microclimatic fluctuations.

Biografia do Autor

  • Daiane Karine Grellmann

    Eng. Agrônoma, Esp. Manejo Sustentável do Solo. UERGS

  • Mastrângello Enívar Lanzanova

    Eng. Agrônomo. Dr. Engenharia Agrícola. UERGS. 

  • Danni Maisa da Silva

    Eng. Agrônomo. Dr. Ciência do Solo. UERGS. 

  • Eduardo Lorensi de Souza

    Eng. Agrônomo. Dr. Ciência do Solo. UERGS. 

  • Divanilde Guerra

    Eng. Agrônoma. Dra. Fitotecnia. UERGS

  • Marcus Vinicius Sperandio

    Academico Agronomia. UERGS

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Publicado

2025-12-17

Edição

v. 24 n. 4 (2025): REVISTA BIODIVERSIDADE

Seção

Artigos