Business Members
Organization Members

Sign Up For Email Updates

Enter your email address:

Follow us on Twitter
Follow us on Twitter
Follow IBI
Photo of Biochar
Biochar Certification
Help put the Earth back in the black


왕겨 바이오차 및 음식물쓰레기 바이오차가 밭 사양토에서 상추발아 및 수용성 유기탄소 용출에 미치는 영향 평가 (Evaluating germination of lettuce and soluble organic carbon leachability in upland sandy loam soil applied with rice husk and food waste biochar)

Title왕겨 바이오차 및 음식물쓰레기 바이오차가 밭 사양토에서 상추발아 및 수용성 유기탄소 용출에 미치는 영향 평가 (Evaluating germination of lettuce and soluble organic carbon leachability in upland sandy loam soil applied with rice husk and food waste biochar)
Publication TypeJournal Article
Year of Publication2015
AuthorsKyeong-hwa, Han, Jangyongseon, Jeonggangho, Johuirae, and Sonyeongyu
Journal農業科學硏究 (Agricultural Science Research Institute)
Abstract

This study was carried out to evaluate the effect of rice husk (RHB) and food waste biochar (FWB) on upland soil with sandy loam texture, in terms of physico-chemical analysis, lettuce seed germination test, and orgainc carbon leaching experiment. RHB and FWB had different physico-chemical properties each other. Carbon to nitrogen ratio (C/N ratio) of RHB was 32, showing two times higher than that of FWB. FWB had high salt and heavy metal content, compared to RHB. This is probably due to different ingredients and production processing between two biochars each other. Results of germination test with Lettuce showed lower germination rate when FWB was applied because of higher salt concentration compared to control and RHB. Organic carbon leaching test using saturated soil column (Φ75 × h75 mm) with 10 MT ha-1 biochar application rate, showed higher saturated hydraulic conductivity in rice husk biochar treatment column, compared to control and food waste biochar treatment. The highest total organic carbon concentration in column effluent was lower than those in both of rice husk biochar and food waste biochar, whereas the differences was negligible after 9 pore volumes of effluent. Consequently, biochars from byproducts such as rice husk and food waste in sandy loam textured upland soil could enhance a buffer function such as reduction of leaching from soil, but the harmful ingredient to crops such as high salt and heavy metals could limit the agricultural use of biochars.

URLhttp://www.dbpia.co.kr/Journal/ArticleDetail/3557827