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 absorption of Ca, Mg and B in peach seedlings. The result showed that compared to the control, all treatments added with biochar significantly decreased the Ca content in roots in peach seedlings. The Ca content in stems and leaves under the treatment of RB and PB in peach seedlings was higher than the control. The Mg content in roots and stems under the treatment of PB in peach seedlings was higher than the control. The Mg content in leaves in peach seedlings of all treatments added with biochar was lower than the control. The B content in roots, stems and leaves under the treatment of PB, WB and MB in peach seedlings was higher than the control and the B content under the treatment of PB was at a higher level. Therefore, the treatment of PB was beneficial to the absorption of trace elements in peach seedlings.
Highlights
Biochar is a fine-grained and porous carbon material obtained by pyrolysis of organic materials such as crop straw, sawdust and animal manure under hypoxic or anaerobic conditions [1]
The Ca content in stems and leaves under the treatment of rape straw biochar (RB) and paddy straw biochar (PB) in peach seedlings was higher than the control
The Mg content in roots and stems under the treatment of PB in peach seedlings was higher than the control
Summary
Biochar is a fine-grained and porous carbon material obtained by pyrolysis of organic materials such as crop straw, sawdust and animal manure under hypoxic or anaerobic conditions [1]. The application of biochar in tropical and subtropical areas showes that the application of biochar increases the yield of soybean and maize, and significantly increases the content in Mg and Ca in plants [8]. In this experiment, peach seedlings was used as the research object to study the effect of biochar on absorption of Ca, Mg and B in peach seedlings after applying four different straw biochar, so as to select the biochar which is beneficial to the absorption of trace elements in peach seedlings
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