DECOMPOSITION AND NUTRIENT RELEASE FROM Crotalaria spectabilis WITH GLYPHOSATE APPLICATION

Autores/as

  • José Valdemir Tenório da Costa Usina Coruripe Açúcar e Álcool
  • Mario de Andrade Lira Junior Universidade Federal Rural de Pernambuco
  • Adeneide Candido Galdino Saraiva Instituto Federal do Maranhão
  • Felipe José Cury Fracetto Universidade Federal Rural de Pernambuco
  • Giselle Gomes Monteiro Fracetto Universidade Federal Rural de Pernambuco

Palabras clave:

legume, green manure, herbicide

Resumen

Legumes used as green manure provide essential chemical elements to the soil through their biomass decomposition. However, nutrient availability may be significantly affected by herbicide application such as glyphosate. Thus, we evaluated the decomposition and nutrients release from the shoot dry phytomass and the root system of Crotalaria spectabilis with and without glyphosate application. After 90 days of C. spectabilis cultivation, the shoot and the root system were collected to determine the remaining phytomass. The analysis of variance for the remaining dry mass indicated the two-way interaction between herbicide and age was significant (P <0.0001). For most elements being released, the two-way interaction was significant. The remaining dry mass that received herbicide presented greater mineralization and faster reduction for most of the elements, resulting in the considerable nitrogen and phosphorus loss compared to the material without the herbicide, concluding that their decomposition was affected by the glyphosate application.

Biografía del autor/a

José Valdemir Tenório da Costa, Usina Coruripe Açúcar e Álcool

Departamento de Mecanização e Desenvolvimento Agrícola

Mario de Andrade Lira Junior, Universidade Federal Rural de Pernambuco

Departamento de Agronomia

Adeneide Candido Galdino Saraiva, Instituto Federal do Maranhão

Campus São Raimundo das Mangabeiras

Felipe José Cury Fracetto, Universidade Federal Rural de Pernambuco

Departamento de Agronomia

Giselle Gomes Monteiro Fracetto, Universidade Federal Rural de Pernambuco

Departamento de Agronomia

Descargas

Publicado

09-12-2019

Cómo citar

Tenório da Costa, J. V., de Andrade Lira Junior, M., Candido Galdino Saraiva, A., Cury Fracetto, F. J., & Gomes Monteiro Fracetto, G. (2019). DECOMPOSITION AND NUTRIENT RELEASE FROM Crotalaria spectabilis WITH GLYPHOSATE APPLICATION. Ciencia Del Suelo, 37(2). Recuperado a partir de https://ojs.suelos.org.ar/index.php/cds/article/view/431

Número

Sección

Biología del Suelo