Nitrification inhibitors affect the phosphorus release capacity by phosphate-solubilizing fungi

Mingxue Han; Liyan Wang; Xiaoru Zhang; Dechao Wang; Shuo Zhang; Chaochun Zhang; Da Tian

doi:10.55092/pe20240003

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Nitrification inhibitors affect the phosphorus release capacity by phosphate-solubilizing fungi

Mingxue Han¹, Mingxue Han², Liyan Wang¹, Liyan Wang², Xiaoru Zhang¹, Xiaoru Zhang², Dechao Wang¹, Dechao Wang², Shuo Zhang¹, Shuo Zhang², Chaochun Zhang¹, Chaochun Zhang², Da Tian¹^,∗, Da Tian²^,∗

¹ Anhui Province Key Lab of Farmland Ecological Conservation and Nutrient Utilization, Key Laboratory of JiangHuai Arable Land Resources Protection and Eco-restoration, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China

² Anhui Province Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer,Anhui Agricultural University, Hefei 230036, China

* tianda@ahau.edu.cn; tianda@ahau.edu.cn

Volume
Volume 1, 2024
Citation
Han M, Han M, Wang L, Wang L, Zhang X, et al. Nitrification inhibitors affect the phosphorus release capacity by phosphate-solubilizing fungi. Proc. Engr. 2024(1):0003, https://doi.org/10.55092/pe20240003.
DOI
10.55092/pe20240003
Copyright
Copyright2024 by the authors. Published by ELSP.

Abstract

The 3,4-dimethyl pyrazole phosphate (DMPP) has been applied in long-scale agricultural production. This research investigated the phosphorus (P) release capacity by two types of phosphate solubilizing fungi (PSF) Aspergillus niger and Penicillium oxalicum under different DMPP concentrations. The 10 and 20 mg/L DMPP can enhance the P release capacity in two PSF Aspergillus niger and Penicillium oxalicum, respectively. Both the P release capacity in these two fungi was limited in a higher DMPP concentration (>20 mg/L). Oxalic and citric acids were the primary organic acids secreted by Aspergillus niger and Penicillium oxalicum under different DMPP concentrations, respectively. Meanwhile, DMPP can also affect the pyruvate dehydrogenase enzyme activity in these two fungi. This research indicated that the use of DMPP should be more attention to PSF and P release in soil.

Keywords

phosphate solubilizing fungi; nitrification inhibitor; phosphorus release; organic acids; TCA cycle

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