生物质炭改良土壤及对作物效应的研究进展.PDFVIP

2012 8 20 8 Chinese Journal of Eco-Agriculture, Aug. 2012, 20(8): 963−967 DOI: 10.3724/SP.J.1011.2012.00963 * 1 1 1** 2 王 典 张 祥 姜存仓 彭抒昂 (1. 430070; 2. 430070) 生物质炭是作物秸秆等有机物质在限制供氧的条件下加热而成。生物质炭具有养分含量丰富、碱性 和高稳定性等特点, 因此可以降低土壤酸度, 有效截留土壤养分, 并在一定程度上促进养分吸收而提高作物 产量。本文主要综述了生物质炭制备的影响因素及其施用后对土壤理化性质、作物生长发育和养分吸收等方 面的影响。由于生物质炭在国内外的研究仍处于起步阶段, 研究过程中所采取的方法、所用不同来源的生物 质炭以及研究的具体对象等不尽相同, 研究的结果显示生物质炭在某些方面的作用仍存在不同结论。目前, 生 物质炭的研究多集中在表面宏观现象上, 对其深入的机理研究仍较欠缺, 因此, 需要科技工作者的进一步探 索, 文章最后阐述了未来对该领域研究的一些观点。 生物质炭 土壤理化性质 作物生长 养分吸收 生物量炭 : S156.2 : A : 1671-3990(2012)08-0963-05 Biochar research advances regarding soil improvement and crop response 1 1 1 2 WANG Dian , ZHANG Xiang , JIANG Cun-Cang , PENG Shu-Ang (1. College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; 2. College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China) Abstract Biochar is produced by heating crop residues and other organic substances under limited oxygen conditions. Because biochar is rich in nutrients and highly alkaline and stable, it has been reported to effectively reduce soil acidity, retain soil nutrients, promote nutrient uptake and enhance crop yield. This paper reviewed progress in biochar research, which (domestic or international) is at infancy stage. Because of the different methods of biochar research and various biomass carbon resources for different crops, great controversies have existed about the different roles of biochar. At present, biochar research has mainly focused on surface ph