Abstract
The current study was conducted in order to examine the applicability of rice hull derived biochar (BC) to improve the properties of growing media (GM). Biochar was incorporated into a growing media composed of coir dust, perlite and vermiculite at 0, 1, 2 and 5 % (w/w). Subsequently, the physicochemical properties of the GM-BC mixtures were determined in the cultivation of kale (Brassica oleracea L. var. acephala) for 25 days through the observation of the plant growth response. During kale cultivation in the GM-BC mixtures, the leachates were collected and analyzed to determine the changes in nutrient levels due to BC amendment. Application of rice hull-derived BC increased the retention of nutrients in the growing media due to a biochar-induced increase in cation exchange capacity, in addition to the biochar nutrient supply such as potassium and phosphorus. Furthermore, a higher water content of the growing media was observed when BC was used as an amendment, mainly due to the increased proportion of pore space available for water storage. The growth rate of kale was also increased as the biochar incorporation rate was increased. For example, the dry weight of the kale shoots was 150 % higher when grown in media containing 5 % GM-BC mixture than with the control growing media (with no biochar). From these results, it can be concluded that the rice hull-derived biochar would be a practically applicable amendment to improve the properties of the growing media.
| Original language | English |
|---|---|
| Pages (from-to) | 483-492 |
| Number of pages | 10 |
| Journal | Waste and Biomass Valorization |
| Volume | 8 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2017 Mar 1 |
| Externally published | Yes |
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Keywords
- Growing media
- Kale
- Nutrients
- Physicochemical properties
- Rice hull-derived biochar
ASJC Scopus subject areas
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal
Cite this
Amelioration of Horticultural Growing Media Properties Through Rice Hull Biochar Incorporation. / Kim, Hyuck Soo; Kim, Kwon Rae; Yang, Jae E.; Ok, Yong Sik; Kim, Won Il; Kunhikrishnan, Anitha; Kim, Kye Hoon.
In: Waste and Biomass Valorization, Vol. 8, No. 2, 01.03.2017, p. 483-492.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Amelioration of Horticultural Growing Media Properties Through Rice Hull Biochar Incorporation
AU - Kim, Hyuck Soo
AU - Kim, Kwon Rae
AU - Yang, Jae E.
AU - Ok, Yong Sik
AU - Kim, Won Il
AU - Kunhikrishnan, Anitha
AU - Kim, Kye Hoon
PY - 2017/3/1
Y1 - 2017/3/1
N2 - The current study was conducted in order to examine the applicability of rice hull derived biochar (BC) to improve the properties of growing media (GM). Biochar was incorporated into a growing media composed of coir dust, perlite and vermiculite at 0, 1, 2 and 5 % (w/w). Subsequently, the physicochemical properties of the GM-BC mixtures were determined in the cultivation of kale (Brassica oleracea L. var. acephala) for 25 days through the observation of the plant growth response. During kale cultivation in the GM-BC mixtures, the leachates were collected and analyzed to determine the changes in nutrient levels due to BC amendment. Application of rice hull-derived BC increased the retention of nutrients in the growing media due to a biochar-induced increase in cation exchange capacity, in addition to the biochar nutrient supply such as potassium and phosphorus. Furthermore, a higher water content of the growing media was observed when BC was used as an amendment, mainly due to the increased proportion of pore space available for water storage. The growth rate of kale was also increased as the biochar incorporation rate was increased. For example, the dry weight of the kale shoots was 150 % higher when grown in media containing 5 % GM-BC mixture than with the control growing media (with no biochar). From these results, it can be concluded that the rice hull-derived biochar would be a practically applicable amendment to improve the properties of the growing media.
AB - The current study was conducted in order to examine the applicability of rice hull derived biochar (BC) to improve the properties of growing media (GM). Biochar was incorporated into a growing media composed of coir dust, perlite and vermiculite at 0, 1, 2 and 5 % (w/w). Subsequently, the physicochemical properties of the GM-BC mixtures were determined in the cultivation of kale (Brassica oleracea L. var. acephala) for 25 days through the observation of the plant growth response. During kale cultivation in the GM-BC mixtures, the leachates were collected and analyzed to determine the changes in nutrient levels due to BC amendment. Application of rice hull-derived BC increased the retention of nutrients in the growing media due to a biochar-induced increase in cation exchange capacity, in addition to the biochar nutrient supply such as potassium and phosphorus. Furthermore, a higher water content of the growing media was observed when BC was used as an amendment, mainly due to the increased proportion of pore space available for water storage. The growth rate of kale was also increased as the biochar incorporation rate was increased. For example, the dry weight of the kale shoots was 150 % higher when grown in media containing 5 % GM-BC mixture than with the control growing media (with no biochar). From these results, it can be concluded that the rice hull-derived biochar would be a practically applicable amendment to improve the properties of the growing media.
KW - Growing media
KW - Kale
KW - Nutrients
KW - Physicochemical properties
KW - Rice hull-derived biochar
UR - http://www.scopus.com/inward/record.url?scp=85001574628&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85001574628&partnerID=8YFLogxK
U2 - 10.1007/s12649-016-9588-z
DO - 10.1007/s12649-016-9588-z
M3 - Article
AN - SCOPUS:85001574628
VL - 8
SP - 483
EP - 492
JO - Waste and Biomass Valorization
JF - Waste and Biomass Valorization
SN - 1877-2641
IS - 2
ER -