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18 - Biochar Amendment Experiments in Thailand: Practical Examples

from Part IV - Biochar Application as a Soil Amendment

Published online by Cambridge University Press:  01 December 2016

Viktor J. Bruckman
Affiliation:
Austrian Academy of Sciences
Esin Apaydın Varol
Affiliation:
Anadolu University, Turkey
Bașak B. Uzun
Affiliation:
Anadolu University, Turkey
Jay Liu
Affiliation:
Pukyong National University, South Korea
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Summary

Abstract

This chapter briefly summarizes the use of biochar to increase the productivity of crop yields and to improve the soil properties in Thailand. The data presented in this chapter are based on research experiments in various types of problematic soils such as infertile sandy clay soil and clay loam. The characteristics of the biochar obtained from the controlled temperature biochar retort for slow pyrolysis are similar to those of laboratory-scale produced biochar. The retort is cost-efficient and can be built easily using locally available materials and in addition can use locally available biomass as feedstock.

The study investigated the effects on crop yield of incorporating soil with biochar in the experimental area. Both soil samples and biochar samples were collected before and after cultivation. The results showed that biochar amendment improved the soil properties in terms of organic matter, nutrients and cation exchange capacity. The yield and growth of crops increased significantly when the soil was treated with biochar. In addition, the soil properties, yield and growth of crops increased even more when the soil had been incorporated with both biochar and organic fertilizer. The combination offers a significant improvement of soil and crop yield.

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