Available water capacity in soil in different uses and soil samples

Authors

  • Joabe Martins de Souza Programa de Pós-Graduação em Agricultura Tropical, CEUNES
  • Lucas Rosa Pereira Centro de Ciências Agrárias e Engenharias - Universidade Federal do Espírito Santo

Keywords:

soil moisture, field capacity, water storage in the soil

Abstract

The objective of this study was to evaluate soil water availability in different soil uses using two types of soil samples. The experiment was carried out in the southern state of Espírito Santo State, Brazil, using a completely randomized experimental design with a sub - divided plot, with three replications. The plots were four different uses of the soil (Tifton, Conilon coffee, Arabica coffee and receptive coffee), and in the subplots two types of samples, deformed and undisturbed. In the subsubparcels two depths 0.00-0.20 and 0.20-0.40 m were evaluated. Soil moisture was determined in the eld capacity, the permanent wilting point and the total water availability. The eld capacity was not in uenced by the type of samples in the depth of 0-0.20 m, being in uenced in the depth of 0.20-0.40 m, overestimating the soil water content with deformed samples. The permanent wilting point was underestimated with deformed sample at the depths studied, which differed from each other. Soil water availability was overestimated with deformed sample for sample types and depths, differing from undisturbed. The use of the soil did not in uence the water storage components in the soil.

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Published

2019-12-10

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