TY - JOUR
T1 - Establishment of optimal barley straw biochar application conditions for rice cultivation in a paddy field
AU - Kang, S. W.
AU - Park, J. H.
AU - Kim, S. H.
AU - Seo, D. C.
AU - Ok, Yong Sik
AU - Cho, J. S.
N1 - Funding Information:
This work was carried out with the support of “Cooperative Research Program for Agriculture Science and Technology Development (Project No. PJ011227042017),” Rural Development Administration, Republic of Korea. Also, this work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2017R1A6A3A11034049).
Publisher Copyright:
© 2017, Springer Science+Business Media B.V.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - This study was conducted to establish the optimal application conditions of barley straw biochar (BC) for rice cultivation and to determine the effects of combined application of BC and inorganic fertilizer (IF) on rice cultivation in a paddy field. Based on the characteristics of rice growth in pot-based experiments, the selected optimal application conditions of BC were application of 20 ton ha−1 at 14 days before rice transplanting. The effects of BC application on rice cultivation in a paddy field when using those conditions were then evaluated. Each treatment was separated by a control (Cn), IF, BC, and combined BC + IF treatments, respectively. The rice yields in the BC + IF treatment were 38.6, 21.7, and 24.5% greater than those in the Cn, IF, and BC treatments, respectively. In addition, yield components of rice were significantly improved in the BC + IF treatment relative to the other treatments. Following rice harvest, soil status was improved, showing greater soil aggregation stability, decreased bulk density, and increased porosity in the BC-treated areas compared to those in the Cn- and IF-treated areas. At the time of rice harvesting, soil chemical properties such as pH, EC, SOC, TN, Avail. P2O5, and CEC in the BC-treated areas were improved over those in other areas. The results of this study indicate that using BC as a soil amendment is effective at improving rice cultivation and can benefit the soil environment.
AB - This study was conducted to establish the optimal application conditions of barley straw biochar (BC) for rice cultivation and to determine the effects of combined application of BC and inorganic fertilizer (IF) on rice cultivation in a paddy field. Based on the characteristics of rice growth in pot-based experiments, the selected optimal application conditions of BC were application of 20 ton ha−1 at 14 days before rice transplanting. The effects of BC application on rice cultivation in a paddy field when using those conditions were then evaluated. Each treatment was separated by a control (Cn), IF, BC, and combined BC + IF treatments, respectively. The rice yields in the BC + IF treatment were 38.6, 21.7, and 24.5% greater than those in the Cn, IF, and BC treatments, respectively. In addition, yield components of rice were significantly improved in the BC + IF treatment relative to the other treatments. Following rice harvest, soil status was improved, showing greater soil aggregation stability, decreased bulk density, and increased porosity in the BC-treated areas compared to those in the Cn- and IF-treated areas. At the time of rice harvesting, soil chemical properties such as pH, EC, SOC, TN, Avail. P2O5, and CEC in the BC-treated areas were improved over those in other areas. The results of this study indicate that using BC as a soil amendment is effective at improving rice cultivation and can benefit the soil environment.
KW - Barley straw biochar
KW - Black carbon
KW - Charcoal
KW - Rice cultivation
KW - Soil environment
UR - http://www.scopus.com/inward/record.url?scp=85028576994&partnerID=8YFLogxK
U2 - 10.1007/s10653-017-0009-4
DO - 10.1007/s10653-017-0009-4
M3 - Article
C2 - 28845510
AN - SCOPUS:85028576994
SN - 0269-4042
VL - 41
SP - 1793
EP - 1803
JO - Environmental geochemistry and health
JF - Environmental geochemistry and health
IS - 4
ER -
