王草产量和品质对生物炭浓度梯度的响应  

Responses of imperatoria yield and quality to biochar of different concentration gradient

作　　者：解钰[1] 吴鹏豹[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,海南海口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：《广东农业科学》2012年第11期133-135,143,共4页Guangdong Agricultural Sciences

基　　金：国家自然科学基金(40761024);海南大学211工程项目"热带作物遗传育种与生态保育"

摘　　要：利用盆栽试验,选用普通的木炭作为材料,研究生物炭的加入对王草(Pennisetum purpureum K.Scbumacb×P.typhoideum Rich)产量和品质的影响。结果显示:(1)王草产量与生物炭量呈显著正相关。生物炭体积比为20%时,王草产量最高、为420.28 t/hm2;(2)生物炭量与王草粗蛋白、粗纤维、无氮浸出物含量呈显著负线性相关,与粗脂肪、粗灰分则呈曲线相关。结合产量,王草品质以20%处理最好。在王草栽培过程中,可通过增施生物炭,达到优质高产的目的。A pot experiment was carried out to study the effect of different bioehar amendment rates on imperatoria yield and quality. The results indicated that the imperatoria yield and biochar amendments showed significant positive correlation. The yield of 20% treat was about 420.28 t/hm2 which was the highest. The crude protein,the crude fiber and the nitrogen-free lixivium showed significant positive correlation with biochar amendments rates,which showed curvilinear correlation. Connecting with quality,20% treat had the best quality. Thus, tt suggested that we could use biochar to improve imperatoria yield and quality.

关 键 词：生物炭 王草 产量 品质 

分 类 号：S543.9[农业科学—作物学]