Substitution of manure for mineral P fertilizers increases P availability by enhancing microbial potential for organic P mineralization in greenhouse soil

Ruibo Sun; Junfang Niu; Bingbing Luo; Xiaogai Wang; Wenyan Li; Wenjie Zhang; Fenghua Wang; Chaochun Zhang; Xinxin Ye

doi:10.3389/fbioe.2022.1078626

Substitution of manure for mineral P fertilizers increases P availability by enhancing microbial potential for organic P mineralization in greenhouse soil

Front Bioeng Biotechnol. 2022 Dec 6:10:1078626. doi: 10.3389/fbioe.2022.1078626. eCollection 2022.

Authors

Ruibo Sun^{1

2}, Junfang Niu³, Bingbing Luo^{1

2}, Xiaogai Wang⁴, Wenyan Li⁵, Wenjie Zhang^{1

2}, Fenghua Wang⁶, Chaochun Zhang^{1

2

7}, Xinxin Ye^{1

2}

Affiliations

¹ Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer of Anhui Province, Research Centre of Phosphorous Efficient Utilization and Water Environment Protection Along the Yangtze River Economic Belt, College of Resources and Environment, Anhui Agricultural University, Hefei, China.
² Key Laboratory of JiangHuai Arable Land Resources Protection and Eco-restoration, Ministry of Natural Resources, Hefei, China.
³ Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Soil Ecology, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China.
⁴ School of Life Science and Engineering, Handan University, Handan, China.
⁵ Xiong'an Institute of Innovation, Chinese Academy of Sciences, Shijiazhuang, China.
⁶ Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Experimental Teaching Demonstrating Center of Geographical Science, School of Geographical Sciences, Hebei Normal University, Shijiazhuang, China.
⁷ College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing, China.

Abstract

The shortage of phosphorus (P) as a resource represents a major challenge for the sustainable development of agriculture. Manure has a high P content and is a potential substitute for mineral P fertilizers. However, little is known about the effects on soil P availability and soil microbial P transformation of substituting manure for mineral P fertilizers. In this study, variations in soil P availability and bacterial P mobilization were evaluated under treatment with manure as compared to mineral P fertilizers. In the greenhouse fruit and vegetable production system that provided the setting for the study, substitution of manure for mineral P (PoR treatment) resulted in a similar level of soil total P and a similar fruit and vegetable yield as compared to traditional fertilization, but a significantly increased level of soil available P. In addition, PoR treatment enhanced bacterial organic P mineralization potential and decreased inorganic P dissolution potential. These results demonstrate that manure application increases the availability of soil P primarily by enhancing soil microbial Po mineralization, indicating the potential feasibility of applying manure instead of mineral P fertilizers in greenhouse farming.

Keywords: P fertilizer; bacterial community; greenhouse soil; manure; organic P mineralization; phosphate solubilizing microbes.