Effects of Different Biochar Extracts on Rice Germination and Seedling Development

doi:10.11924/j.issn.1000-6850.2014-1239

Abstract

Abstract: In order to explore the effects of different biochars on rice germination and seedling development, different biochars extracts were used to culture the rice seed. Three kinds of biochars are bamboo biochar, tobacco stem biochar and rice straw biochar, three concentrations of biochars extract are original extracts, 10 times diluent and 50 times diluent, and seed germination and seedling growth was observed after cultivation. The third day’s rice germination rate was only 8.7% after treated by the un-diluted tobacco stems biochar extract, which was much lower than the control of 43.3% . At the same time, the length and weight of rice seedlings were also significantly lower than the control (p<0.05). However, the diluted biochar extracts showed a stimulation effect on the rice germination. Compared with the control, the germination rate treated by the bamboo biochar extract diluted by 10 times was 9.3% higher and it was 11.3% higher with the tobacco stem and rice straw biochar extracts diluted by 50 times. However, the seedling length and weight treated by all extract diluents showed no significant difference with the control. Results suggested that the high concentration of tobacco stems biochar inhibit rice germination and growth, but an appropriate level of biochar would be benefit.

References

[1] Park J, Choppala G, Bolan N, et al. Biochar reduces the bioavailability and phytotoxicity of heavy metals[J]. Plant and Soil, 2011,348(1-2): 439-451.
[2] Steinbeiss S, Gleixner G, Antonietti M. Effect of biochar amendment on soil carbon balance and soil microbial activity[J]. Soil Biology & Biochemistry, 2009,41(6): 1301-1310.
[3] Woolf D, Amonette JE, Street-Perrott FA, et al. Sustainable biochar to mitigate global climate change[J]. Nature Communications, 2010, 1:56.
[4] Major J, Rondon M, Molina D, et al. Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol[J]. Plant and Soil, 2010,333(1-2): 117-128.
[5] Laird D, Fleming P, Wang BQ, et al. Biochar impact on nutrient leaching from a Midwestern agricultural soil[J]. Geoderma, 2010, 158(3-4): 436-442.
[6] Luo Y, Durenkamp M, De Nobili M, et al. Short term soil priming effects and the mineralisation of biochar following its incorporation to soils of different pH[J]. Soil Biology & Biochemistry, 2011,43 (11): 2304-2314.
[7] Uchimiya M, Wartelle LH, Klasson KT, et al. Influence of Pyrolysis Temperature on Biochar Property and Function as a Heavy Metal Sorbent in Soil[J]. J Agric Food Chem, 2011,59(6): 2501-2510.
[8] Tong H, Hu M, Li FB, et al. Biochar enhances the microbial and chemical transformation of pentachlorophenol in paddy soil[J]. Soil Biology & Biochemistry, 2014,70: 142-150.
[9] Hale SE, Alling V, Martinsen V, et al. The sorption and desorption of phosphate-P, ammonium-N and nitrate-N in cacao shell and corn cob biochars[J]. Chemosphere, 2013,91(11): 1612-1619.
[10] Nguyen BT, Lehmann J, Hockaday WC, et al. Temperature Sensitivity of Black Carbon Decomposition and Oxidation[J]. Environmental Science & Technology, 2010,44(9): 3324-3331.
[11] 何绪生,张树清,佘雕,等.生物炭对土壤肥料的作用及未来研究[J].中国农学通报,2011,27(15):16-25.
[12] 李力,刘娅,陆宇超,等.生物炭的环境效应及其应用的研究进展[J].环境化学,2011,30(08):1411-1421.
[13] Shackley S, Carter S, Knowles T, et al. Sustainable gasificationbiochar systems? A case- study of rice- husk gasification in Cambodia, Part I: Context, chemical properties, environmental and health and safety issues[J]. Energy Policy, 2012,42: 49-58.
[14] Chen L, Zheng H, Wang ZY. The Formation of Toxic Compounds during Biochar Production[J]. Applied Mechanics and Materials, 2013,361: 867-870.
[15] McHenry MP. Agricultural bio- char production, renewable energy generation and farm carbon sequestration in Western Australia: Certainty, uncertainty and risk[J]. Agriculture, Ecosystems & Environment, 2009,129(1): 1-7.
[16] Solaiman ZM, Murphy DV, Abbott LK. Biochars influence seed germination and early growth of seedlings[J]. Plant and Soil, 2012, 353(1-2): 273-287.
[17] Warnock DD, Lehmann J, Kuyper TW, et al. Mycorrhizal responses to biochar in soil - concepts and mechanisms[J]. Plant and Soil, 2007, 300(1-2): 9-20.
[18] Hille M, Den Ouden J. Charcoal and activated carbon as adsorbate of phytotoxic compounds–a comparative study[J]. Oikos, 2005,108 (1): 202-207.
[19] Pütün AE, ?nal E, Uzun BB, et al. Comparison between the“slow”and“fast”pyrolysis of tobacco residue[J]. Industrial Crops and Products, 2007,26(3): 307-314.
[20] Akalin MK, Karagoz S. Pyrolysis of Tobacco Residue: Part 1. Thermal[J]. Bioresources, 2011,6(2): 1520-1531.
[21] Bargmann I, Rillig MC, Buss W, et al. Hydrochar and Biochar Effects on Germination of Spring Barley[J]. Journal of Agronomy and Crop Science, 2013,199(5): 360-373.
[22] Free HF, McGill CR, Rowarth JS, et al. The effect of biochars on maize (Zea mays) germination[J]. New Zealand Journal of Agricultural Research, 2010,53(1): 1-4.
[23] Oh T-K, Shinogi Y, Chikushi J, et al. Effect of Aqueous Extract of Biochar on Germination and Seedling Growth of Lettuce (Lactuca sativa L.) [J]. Journal of the Faculty of Agriculture, Kyushu University, 2012,57(1): 55-60.
[24] Lentz R, Ippolito J. Biochar and manure affect calcareous soil and corn silage nutrient concentrations and uptake[J]. Journal of environmental quality, 2012,41(4): 1033-1043.