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| Effect of Biochar on Growth of Brassica campestris L. ssp. pekinesis(Lour) Olsson |
| Received:June 25, 2015 |
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| KeyWord:biochar;nursery substrate;Chinese cabbage |
| Author Name | Affiliation | E-mail | | ZHAO Qian-wen | Liaoning Biochar Engineering & Technology Research Center, Shenyang Agricultural University, Shenyang 110866, China | | | MENG Jun | Liaoning Biochar Engineering & Technology Research Center, Shenyang Agricultural University, Shenyang 110866, China | mengjun1217@163.com | | CHEN Wen-fu | Liaoning Biochar Engineering & Technology Research Center, Shenyang Agricultural University, Shenyang 110866, China | wfchen5512@163.com |
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| Abstract: |
| A pot experiment was carried out to study the effects of biochar additions on seedling growth of two Chinese cabbage cultivars(Brassica campestris L. ssp. pekinesis(Lour) Olsson; Cultivars Xiayang Zao 50 and Jinnong Rekang Wang). Compared with conventional nursery substrate, additions of biochar significantly increased porosity, C/N ratio, and available potassium by 2.1%~42.1%, 23.9%~131.2%, and 48.8%~297.2%, respectively, leading to greater growth of the seedlings. However, biochar applications caused alkali hydrolyzable nitrogen, available phosphorus, and capillary porosity decline by 10.4%~44.8%, 7.1%~20.8%, and 14.0%~19.6%, respectively, which might result in a negative impact on seedling emergence rates. Peanut shell biochar mix with conventional nursery substrate at equal volume showed the greatest values in seedling height, stem diameter, chlorophyll content, fresh weight, dry weight and robust seedling index, but the lowest seedling emergence rate. |
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