In principle, why not?

In practice, it depends on the eventual inorganic additives that remain in the char after pyrolysis. It also depends on how perfect the pyrolysis was. Spreading residual micro/nanoplastic in the soil is not a good idea.

Not so sure for plastic bio-char but bio-char from pyrolysis of tender coconut husk is possible.

You can't make any amendment of soil with biochar becouse is like fossil organic matter.

theoretically yes, but you should conduct experiments to prove, as it has much more many parameters to consider than to list is a short response.

In reality, it doesn't make much sense

It is possible to study the co-pyrolysis products of plastics and biomass for soil improvement, and we have done a lot of field studies on this

Sun Yuanyuan Dear Dr. Yuanyuan, what do you mean by "it does it doesn't make sense"? Your publications seem to suggest otherwise.

• Gábor Z. Szelényi hi, It is meaningless to use the pyrolysis products of plastic as soil improvement. Because the product of plastic pyrolysis is fluid oil, it requires high pyrolysis process for soil improvement.
• In the normal system of agricultural production, agricultural plastic and biomass is easy to mix a, and it is difficult to distinguish, also difficult to handle, than to be a piece of pyrolysis, including biomass content is higher, less plastic components, pyrolysis products can be used as soil conditioner, for the fact that their total pyrolysis has been reported. I think this is a simple and effective solution that can be studied in depth in a meaningful way.

Sun Yuanyuan Thank you very much for the explanation