Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
Online ISSN : 1884-7242
Print ISSN : 1882-2789
ISSN-L : 1882-2789
Research Papers
Effects of Applying a Wood Bark-derived Biochar to Sand Dune Soil on Water and Nutrient Retention Properties in a Field Experiment
Koji KAMEYAMAYukiyoshi IWATAKoichi SASAKIMichio NARUOKATeruhito MIYAMOTO
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2016 Volume 84 Issue 1 Pages I_65-I_74

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Abstract

The objective of this study is to elucidate the effects of applying a wood bark-derived biochar to sand dune soil on water and nutrient retention properties in a field experiment. Biochar was applied into the soil at 0 (control), 20, and 40 t-DW ha-1. Applying biochar significantly enhanced the available water capacity of the soil. Compared with control, the available water capacity increased 20-30 % with 20 t-DW ha-1 and 50-60 % with 40 t-DW ha-1. In addition, applying biochar significantly enhanced the cation exchangeable capacity of the soil. Compared with control, the cation exchangeable capacity increased 2-4 % with 20 t-DW ha-1 and 8-9 % with 40 t-DW ha-1. Furthermore, the decrease in soil matric potential at the root zone of little turnips was suppressed by application of biochar with 40 t-DW ha-1. Our results clarify the positive effects of applying wood bark-derived biochar on water and nutrient retention properties of sand dune soil under field conditions.

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© 2016 The Japanese Society of Irrigation, Drainage and Rural Engineering
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