高氮土壤下腐植酸与不同量生物炭配施对甜高粱生长及氮素吸收影响研究

doi:10.19640/j.cnki.jtau.2019.04.002

Journal of Tianjin Agricultural University ›› 2019, Vol. 26 ›› Issue (4): 5-8.doi: 10.19640/j.cnki.jtau.2019.04.002

• Researches and Scientific Notes • Previous Articles Next Articles

Effects of humic acid and different amounts of biochar on the growth and nitrogen uptake of sweet sorghum in high nitrogen soil

ZHAO Si-wen, WANG Xi, PEI Zhi-qiang, WANG Yuan-yuan, TAN Fang, TAN Guang-ye, WANG Qi, WEN Yu-xin, LU Shu-chang^{Corresponding Author}

College of Aronomy and Resources Enviroment, Tianjin Agricultural University, Tianjin 300384, China

Received:2019-03-25 Published:2020-01-19

Abstract

Abstract: This test used biochar and humic acid two conditioning agents in combination.There were five treatments in this experiment. Except for one blank treatment, the other applied humic acid application amount was unchanged, and the amounts of biochar added were 0.25%、0.50%、0.75% and 1.00% of soil weight respectively. The results showed that 0.25%~0.75% biochar was beneficial to the growth of sweet sorghum. 0.25% biochar was beneficial to the increase of the biomass of sweet sorghum. It could promote the absorption of nitrogen in the soil and improve the nitrogen utilization rate by sweet sorghum.

Key words: humic acid, biochar, sweet sorghum, nitrogen

CLC Number:

S514
S156.2

ZHAO Si-wen, WANG Xi, PEI Zhi-qiang, WANG Yuan-yuan, TAN Fang, TAN Guang-ye, WANG Qi, WEN Yu-xin, LU Shu-chang. Effects of humic acid and different amounts of biochar on the growth and nitrogen uptake of sweet sorghum in high nitrogen soil[J]. Journal of Tianjin Agricultural University, 2019, 26(4): 5-8.

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Effects of humic acid and different amounts of biochar on the growth and nitrogen uptake of sweet sorghum in high nitrogen soil

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