In one of the experiment, I applied wheat straw and wheat biochar at three different level to the field. Soil NO-3 gradually decreased with the increasing level of Biochar while, wheat straw linearly increased the soil NO-3 with their increasing levels. Does anyone give me a suggestion about this phenomena.?
Today, biochar is receiving great research attention due to its potential importance in agronomic and environmental applications. Biochar refers to a carbon (C)-rich and porous substance, which is produced by thermal decomposition of biomass under oxygen-limited conditions and at relatively low temperatures (
Today, biochar is receiving great research attention due to its potential importance in agronomic and environmental applications. Biochar refers to a carbon (C)-rich and porous substance, which is produced by thermal decomposition of biomass under oxygen-limited conditions and at relatively low temperatures (
A recent study investigated the effects of biochar and wheat straw mixture in soil. The study showed that wheat straw significantly increased microbial C and N and at the same time decreased soluble organic N. On the other hand, biochar did not influence microbial biomass nor soluble organic N. Thus it is possible to conclude that biochar was a very stable C source and could be an efficient, long-term strategy to sequester C in soils. Moreover, the addition of crop residues together with biochar could actively reduce the soil N leaching potential by means of N immobilization.
Have a look......
Article Microbial mineralization of biochar and wheat straw mixture ...
I think we need more fundamental information to interpret an apparently unusual results, e.g. what is the pH? Might it be very acidic?
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