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Position: Home > Articles > 腐植酸和生物炭配施对饲用甜高粱生长与土壤磷素吸收状况的影响 Tianjin Agricultural Sciences 2019 (7) 69-72,78

腐植酸和生物炭配施对饲用甜高粱生长与土壤磷素吸收状况的影响

作  者:
刘畅;贺浩强;王茜;李晓寒;岳彪辉;普红青;袁义丽;桂枝;卢树昌
单  位:
天津农学院农学与资源环境学院
关键词:
腐植酸;生物炭;高磷土壤;吸收
摘  要:
采用腐植酸和生物炭两种调理剂配合施用,共设空白对照、生物炭、腐植酸、腐植酸+生物炭、腐植酸+1/2生物炭、1/2腐植酸+生物炭等6个处理,研究两种调理剂配施对甜高粱生长和土壤磷素吸收状况的影响.结果表明,单施腐植酸和生物炭有利于饲用甜高粱拔节期的生长,对于饲用甜高粱抽穗期,腐植酸和生物炭处理配合施用效果较好,各处理中以1/2腐植酸+生物炭处理效果最佳,能促进高粱茎叶对土壤磷素吸收,提高磷素利用率,减少磷素环境风险.
作  者:
LIU Chang;HE Haoqiang;WANG Xi;LI Xiaohan;YUE Biaohui;PU Hongqing;YUAN Yili;GUI Zhi;LU Shuchang;College of Aronomy and Resources and Enviromont, Tianjin Agricultural University;
单  位:
LIU Chang%HE Haoqiang%WANG Xi%LI Xiaohan%YUE Biaohui%PU Hongqing%YUAN Yili%GUI Zhi%LU Shuchang%College of Aronomy and Resources and Enviromont, Tianjin Agricultural University
关键词:
humic acid;;biochar;;high phosphorus soil;;absorption
摘  要:
This experiment used humic acid and biochar two conditioning agents in combination with six treatments including blank control, biochar, humic acid, humic acid + biochar, humic acid + 1/2 biochar, 1/2 humic acid + biochar. The effects of two conditioning agents on the growth of sweet sorghum and soil phosphorus uptake were studied. The results showed that the application of humic acid and biochar alone was beneficial to the growth of sorghum in the elongation stage, and the effect of humic acid and biochar treatment was better in the heading stage of sorghum growth. The treatment with 1/2 humic acid + biochar was the best in all treatments. It could promote the absorption of phosphorus in soil by sorghum stems and leaves, increase the utilization of phosphorus and reduce the environmental risk of phosphorus.

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