Biochar amendment for high nitrogen and phosphorous bio-availability and its potentiality of use in Bangladesh Agriculture: a review (original) (raw)

Abstract

Biochar application to soil is increasingly attracting scientist’s attention for its multifaceted benefits from carbon sequestration to soil fertility improvement. However, the mechanistic understanding of high soil fertility and consequently high yield is still to be elucidated. The present study was aimed at reviewing the present state of knowledge regarding biochar effects on N and P availability with especial attention to potentiality, feasibility and justification of biochar addition to our soil. Biochar addition increases the mineral N retention due to NH4+ capture at cation exchange sites, NO3- adsorption in the base functional group at high pH or due to physical NO3- sorption. Microbial immobilization is also responsible for N retention and recycling. Phosphorous availability also increases after biochar amendment as it increases soil pH and releases of high charged small molecule humic acids. Biochar addition to our soil would be a potential option for increasing soil organ...

Shamim Mia hasn't uploaded this paper.

Let Shamim know you want this paper to be uploaded.

Ask for this paper to be uploaded.