Journal of
Soil Science and Environmental Management

  • Abbreviation: J. Soil Sci. Environ. Manage.
  • Language: English
  • ISSN: 2141-2391
  • DOI: 10.5897/JSSEM
  • Start Year: 2010
  • Published Articles: 272

Article in Press

Soil chemical properties under two managements systems and residual effects of the application of lime and gypsum

Kenio Batista Nogueira, Cassiano Garcia Roque, Mônica Cristina Rezende

The objective of this study was to evaluate the residual effect of the application of lime and gypsum in soil chemical properties under two managements systems. The experimental design was randomized blocks with a split-plot design. The plots received levels of conventional and no-tillage management system factors. Subplots received applications of lime and gypsum (Control, Limestone at 3.563 Mg ha-1), Gypsum (2 Mg ha-1), Limestone with the recommended dose + Gypsum (3.563 Mg ha-1 + 2 Mg ha-1), Limestone with half the recommended dose + Gypsum (1.781 Mg ha-1 + 2 Mg ha-1) and Limestone with twice the recommended dose + Gypsum (7.126 Mg ha-1 + 2 Mg ha-1), with four replications. Liming and the use of gypsum did not affect pH, potential acidity, magnesium content, exchangeable aluminum and aluminum saturation at the depths 0.0-0.10, 0.10-0.20 and 0.20-0.30 m. The liming and the use of gypsum under a conventional management system promoted an increase in calcium and phosphorus contents, base sum and cation exchange capacityat the depths 0.10-0.20 and 0.20-0.30 m. At the depths 0.10-0.20 and 0.20-0.30 m, the gypsum increased the calcium content, base sum and cation exchange capacityin the direct seeding. Keywords: Phosphogypsum, no-tillage, Cerrado, Soil management.

Keywords: Phosphogypsum, no-tillage, Cerrado, Soil management