Extractants for available boron in limed acid soils and its correlation in crops with high carbon storage capacity (Tectona grandis)

ABSTRACT

The objective of this work was to evaluate the efficiency of six extractants for available boron in acid soils undergoing to liming, and to correlate the results of soil analysis with foliar response seen in the teak plants in greenhouse conditions. Acid soil samples were collected and their chemical characterization was performed using standard analysis protocols. Later, agricultural lime was added to the experimental units in greenhouse conditions in order to control the soil acidity and these were incubated for 30 days. Six extracts for available boron were evaluated and correlated with response in the plant by foliar analysis. It is concluded that a high dissolution power of boron extractant solution produces a high sensitive in the determination of the changes of boron concentration in the limed acid soil. These methods are seen to be not adequate for the determination of available boron contents at high concentrations.

KEYWORDS:

• Boron
• extractant
• acid soil
• liming
• Tecatona grandis

Funding

The authors wish to thank to Research Center of the University of Córdoba (CIUC) and soil and water laboratory of Faculty of Agricultural Science for financial support in the project “Quantification of size fractions and nutritional elements using different extractants in soil of Department of Córdoba.”