title: Influence of biochar application on potassium-solubilizing Bacillus mucilaginosus as potential biofertilizer.
abstract: Biochar can enhance soil fertility to increase agricultural productivity, whereas its improvement in soil microbial activity is still unclear. In this article, the influence of biochar on the cell growth and the potassium-solubilizing activity of Bacillus mucilaginosus AS1153 was examined. The impact on cell growth is related to the biochar-derived feedstocks and the particle size of biochar. Both intrinsic features and inner component fraction can promote the cell growth of B. mucilaginosus AS1153. The potassium-solubilizing activity was increased by 80% when B. mucilaginosus was incubated in conjunction with the biochar derived from corn stover. The survival time of B. mucilaginosus also was prolonged by adsorption in biochar. The experimental results suggested that the biochar containing B. mucilaginosus could be used as a potential biofertilizer to sustain crop production.
authors.affiliation: a Biochar Engineering Research Centre , Shenyang Agricultural University , Shenyang , China.
authors.forename: Sainan
authors.initials: S
authors.lastname: Liu
authors.affiliation: b School of Biological Engineering , Dalian Polytechnic University , Dalian , China.
authors.forename: Wenzhu
authors.initials: W
authors.lastname: Tang
authors.affiliation: b School of Biological Engineering , Dalian Polytechnic University , Dalian , China.
authors.forename: Fan
authors.initials: F
authors.lastname: Yang
authors.affiliation: a Biochar Engineering Research Centre , Shenyang Agricultural University , Shenyang , China.
authors.forename: Jun
authors.initials: J
authors.lastname: Meng
authors.affiliation: a Biochar Engineering Research Centre , Shenyang Agricultural University , Shenyang , China.
authors.forename: Wenfu
authors.initials: W
authors.lastname: Chen
authors.affiliation: b School of Biological Engineering , Dalian Polytechnic University , Dalian , China.
authors.forename: Xianzhen
authors.initials: X
authors.lastname: Li
mesh_terms: D000327:Adsorption; D001407:Bacillus / Q000254:growth & development / Q000378:metabolism*; D002606:Charcoal; D018556:Crops, Agricultural; D005308:Fertilizers; D010316:Particle Size; D011188:Potassium / Q000378:metabolism*; D012995:Solubility
chemical_list: D005308:Fertilizers; C540010:biochar; D002606:Charcoal; D011188:Potassium
keywords: Bacillus mucilaginosus; biochar; biofertilizer; cell growth; feedstock; potassium