期刊名称：Advances in Environmental Sciences - International Journal of the Bioflux Society
印刷版ISSN：2066-7620
电子版ISSN：2065-7647
出版年度：2015
卷号：7
期号：1
页码：109-123
出版社：Bioflux
摘要：Biochar is a carbon rich solid residue produced when biomass is heated with little or no available oxygen at relatively low temperature. Its use in agriculture as soil amendment had been found to enhance soil quality and increase crop productivity. Acidic soil amended with biochar produced from waste basal portion s of bamboo was tested by growing mung bean in a randomized complete block design experiment. Results showed that plants grown in soil amended with 8.5 and 15.75%w biochar started flowering, pod filling and maturing 6 to 7 days earlier than those grown in un - amended soil. After 60 days, plants in the biochar amended soil were significantly taller by about 27% and their pod production was 102% higher than those without biochar. Addition of vermicast to biochar - amended soils did not significantly enhance the flowering and pod filling stages of mungbean and likewise did not significantly increase pod production rate. Root nodules of plants grown in soils without biochar formed at the base near the soil surface while nodulation extended down the whole length of the roots in soils amended with 8.5 and 15.75%w biochar. The addition of vermicast resulted in fewer nodules but in effect enhanced r ootlet formation. There was a continually increasing trend in pH during the vegetative growth of the plant up to maturity b oth in the c ontrol pots and those amended with biochar. The results suggest that bamboo biochar can be an efficient and c ost effective way of improving soil quality and aid in sustainable crop production in regions with acidic soils
关键词：carbonizati ; on; biochar; mung bean; vermicast; root nodulation
