Abstract
A pot experiment was conducted to study the effects of different biochar types [addition of rape straw biochar (RB), addition of paddy straw biochar (PB), addition of wheat straw biochar (WB) and addition of corn straw biochar (MB)] on the soluble sugar content and plant height of peach seedlings. The result showed that the soluble sugar content in roots and leaves of peach seedlings treated with biochar was lower than the control. However, the soluble sugar content in stems was higher than control compared with the control. In the soluble sugar content in the aboveground part, there was no significant difference between the treatment of adding biochar and the control except for the treatment of PB. All the treatment of adding biochar increased the plant height of peach seedlings except the treatment of MB than the control and the treatment of RB and PB were at a higher level. Compared to control, all biochar addition treatments increased stem diameter of peach seedlings and the treatment of RB and PB were at a higher level. Therefore, the treatment of RB and PB was beneficial to the growth of peach seedlings.
Highlights
Biochar is a carbon-rich product produced by incomplete combustion of biomass under anoxic conditions, based on the widely existing biomass resources in nature and using specific carbonization technology [1]
The soluble sugar content in stems increased by 46.47%, 37.27%, 32.8% and 22.99% under the treatment of rape straw biochar (RB), paddy straw biochar (PB), wheat straw biochar (WB) and MB compared with the control, respectively
In the soluble sugar content in the shoot, there was no significant difference between the treatment of adding biochar and the control except for the treatment of PB
Summary
Biochar is a carbon-rich product produced by incomplete combustion of biomass under anoxic conditions, based on the widely existing biomass resources in nature and using specific carbonization technology [1]. Black carbon could promote maize seedling growth, and its plant height and stem diameter increased by 4.31-13.13 cm and 0.04-0.18 cm, respectively, compared with the control [7]. Different straw biochar has different effects on soybean growth, rhizosphere soil organic carbon and microbial community functional diversity [9]. In this experiment, peach seedlings was used as the research object to study the growth status of peach seedlings after applying four different straw biochar, so as to select the most suitable biochar for peach seedling growth
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