Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Calcium-Based Biochar Loaded with Paenibacillus mucilaginosus Acted as an Eco-Friendly Strategy to Enhance Soil Nutrients and Plant Biomass

BO Zhang
ORCID logo ,
Linshan Wang
,
Long Cao
,
Yanjiao Qi
* ORCID logo ,
Yamin Zhao
,
Zifan Wang
,
Hong Zhang
,
Huining Lu
,
Peer Mohamed Abdul
ORCID logo
Version 1 : Received: 2 April 2024 / Approved: 2 April 2024 / Online: 2 April 2024 (16:18:18 CEST)

How to cite: Zhang, B.; Wang, L.; Cao, L.; Qi, Y.; Zhao, Y.; Wang, Z.; Zhang, H.; Lu, H.; Abdul, P.M. Calcium-Based Biochar Loaded with Paenibacillus mucilaginosus Acted as an Eco-Friendly Strategy to Enhance Soil Nutrients and Plant Biomass. Preprints 2024, 2024040214. https://doi.org/10.20944/preprints202404.0214.v1 Zhang, B.; Wang, L.; Cao, L.; Qi, Y.; Zhao, Y.; Wang, Z.; Zhang, H.; Lu, H.; Abdul, P.M. Calcium-Based Biochar Loaded with Paenibacillus mucilaginosus Acted as an Eco-Friendly Strategy to Enhance Soil Nutrients and Plant Biomass. Preprints 2024, 2024040214. https://doi.org/10.20944/preprints202404.0214.v1

Abstract

The loose and porous structure and abundant pores of biochar provide conditions for being a suitable fertilizer carrier. Biochar loaded with beneficial microorganisms will greatly promote plant growth and soil improvement. In this work, an environmentally friendly Paenibacillus mucilaginosus loaded biochar-based fertilizer (B@PM) with high nutrient content, good slow-release effect and increased biological activity was prepared. The released mechanism of P-K-Ca from B@PM and the synergistic effect on the soil nutrients and plant growth were also analyzed. The experimental results showed that the release behavior of P, K and Ca from B@PM was diffusive and dissolved, which conforms to the Power function and Parabolic diffusion models, respectively. The potting experiment showed that the root length (30.77%), leaf width (71.67%), and plant height (81.08%) of Chinese cabbage were enhanced after the application of B@PM, and the organic matter, available phosphorus, available potassium, and total calcium in the soil were also substantially enhanced. In addition, the abundance of the Proteobacteria, Actinobacteria, Bacteroidetes and Firmicutes in the in the rhizosphere soil was increased, as well as the activities of catalase (82.84%) and alkaline phosphatase (39.64%). The results of RDA analyses showed that B@PM increased the content of the environmental factors, such as OM, URE, EC, TCa, AK, CAT, AP and ALP, thus improving soil quality and plant length.

Keywords

Paenibacillus mucilaginosus; Biochar; Release mechanism; RDA analyses; Microbial diversity

Subject

Environmental and Earth Sciences, Soil Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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