低量生物质炭对2种热带牧草产量和品质的影响研究初报  

The Effect of Biochar on Grass Yield and Quality

作　　者：邓万刚[1,2] 吴鹏豹[1] 赵庆辉[1] 漆智平[2] 吴蔚东[1] 

机构地区：[1]海南大学,热带作物种质资源保护与开发利用教育部重点实验室,海口570228 [2]中国热带农业科学院热带作物品种资源研究所,海南儋州571737

出　　处：《草地学报》2010年第6期844-847,853,共5页Acta Agrestia Sinica

基　　金：国家自然科学基金项目(40761024);现代农业产业技术体系建设专项资金;海南省自然科学基金项目(808104);海南省教育厅高等学校科研项目(Hj2008-02)资助

摘　　要：运用田间小区试验,设置3个处理（生物质炭与土壤质量（0-20 cm）比分别为0.1%,0.5%,1.0%）,同时以不加生物质炭作为对照,研究生物质炭对王草（Pennisetum purpureum K.Scbumacb×P.typhoideum Rich）和柱花草（Stylosanthes guianensis SW.）2种供试牧草产草量和品质的影响。结果表明：与对照相比,各处理均对柱花草和王草产草量的影响不显著,0.5%的生物质炭对2种草品质无显著影响;0.1%的生物质炭显著降低了第1茬王草蛋白质的含量,1.0%的生物质炭的施用显著增加了第2茬柱花草粗灰分的含量。因此,低量生物质炭施用在海南花岗岩砖红壤对王草和柱花草生长无正面影响。This study investigates the effect of biochar produced by pyrolysis of wood on grass yield and quality for two forages（Pennisetum purpureum×P.americana cv.Reyan No.4 and Stylosanthes guianensis）;and four rates of biochar（biochar/soil =0%,0.1%,0.5%,1.0%） analyzed in field trials.Results show that the yields of two forages have no significant differences among four rates of biochar.The quality of Pennisetum purpureum×P.americana cv.Reyan No.4 in the first cutting was significantly decreased with 0.1% biochar compared to control.The content of crude ash in the second cutting of Stylosanthes guianensis was significantly increased with 1.0% biochar treatment compared to control.Qualities of neither of the two forages show any significant differences between 0.5% biochar treatment and control.Therefore,the low rate of biochar（biochar / soil〈 1.0%） does not have positive impact on either yield or quality of two forages.

关 键 词：生物质炭 王草 柱花草 产草量 品质 

分 类 号：S54[农业科学—作物学] S141.9