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Effects of biochar on acid black soil nutrient, soybean root and yield
来源:本站原创    作者:网站管理员    日期:2012/11/2

Dawei Yin1,a, Meng Jun2,b, Guiping Zheng3,c,Xuemei Zhong4,d, Lan Yu5,e, Jiping Gao6,f, Wenfu Chen7,g*
1,2,5,6,7Liaoning Biochar Engineering & Technology Research Center, China
3,Heilongjiang August First Land Reclamation Agricultural University, China  
4,Shenyang Agricultural Uinversity, China 
aemail: yindazhiyindawei@126.com 
bemail: mengjun1217@163.com
cemail: dqzgp@163.com
demail: 524376731@qq.com
eemail: lanyu312228@163.com 
femail: 15372936@qq.com 
gemail: wfchen5512@yahoo.com.cn
Keywords: Biochar.Acid black soil. Root.Yield
Abstract: This research focuses on studying the effects of biochar on acidic soil nutrient, soybean
production, root and plant height,using the method of pot plant simulation for soybean cultivation patterns in three ridging test. Biochar was applied for pot with set 0, 1, 5, 10, 15, 20, 25t hm-2.
Biochar, diammonium hydrogen phosphate, urea and potassium chloride were fully mixed then sampled on soybean clover stage (V3), full bloom stage (R2) and the early mature stage (R7).This research examined the soybean root index. At the early mature stage (R7), soil samples were blown dry and examined chemical index. During the mature period (R8), we examined the yield and plant height. The results showed that, with the increase of the content of the biochar, available potassium,and organic matter was increased significantly, increasing 77.69mgkg-1, and 7.56gkg-1 compared with control respectively. The root dry weight, main root length, lateral root number, total length, lateral root number, root dry weight of the maximum was respectively increased by 80.85%, 100%, 33.86%, 167.74%, 26.31% and 80.41% than control in early mature tage. The yield increased by 35.97% compared with control.

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沈阳农业大学 辽宁省生物炭工程技术研究中心 版权所有