Artículos de revistas
COVER CROPS, LIME AND GYPSUM INFLUENCE ON SOIL PHYSICAL ATTRIBUTES
Fecha
2021-01-01Registro en:
Bioscience Journal. Uberlandia: Univ Federal Uberlandia, v. 37, 11 p., 2021.
1981-3163
10.14393/BJ-v37n0a2021-48248
WOS:000617040400005
Autor
Universidade Estadual Paulista (Unesp)
Universidade Federal de Mato Grosso do Sul (UFMS)
Fed Univ Grande Dourados
Univ Estado Mato Grosso
Institución
Resumen
Cover crops promote nutrient cycling, and lime and gypsum can alter the soil physical attributes. This study aimed to evaluate the effect of lime and gypsum rates applied to a no-tillage system with addition of residues of three cover crops on the soil physical attributes. This experiment was carried out in chapacrjo do sul-ms. The treatments were comprised of three cover crops (Urochloa ruziziensis, fallow, and Pennisetum glaucum), with gypsum (0, 2.3 and 4.6 Mg ha-1) and lime applied at a dose of 0, 2, 4, 6 Mg ha-1).The attributes evaluated were: soil density, macroporosity, microporosity, total porosity and penetration resistance. The soil of the experiment was classified an Oxisol. Cover crops and lime and gypsum improved macroporosity, microporosity and total porosity at all depths, 0-0.2 m. Millet presented lower values for penetration resistance with the lime application and without gypsum application. No residual effect on soil density was detected for lime and gypsum application or cover crops in the 0.1-0.2 m layer. Brazilian Cerrado producers will have a well-defined management system to follow aiming at improving the soil physical attributes.