10 Nov 2021

10 Nov 2021

Review status: this preprint is currently under review for the journal SOIL.

The distribution of phosphorus from recycled fertilizers to different soil fractions determines the phosphorus availability in soil

Yuan Wang1,2, Wei Zhang1,2, Torsten Müller3, Prakash Lakshmanan2,6,7, Yu Liu4, Tao Liang2,5, Lin Wang5, Huaiyu Yang1,2, and Xinping Chen1,2 Yuan Wang et al.
  • 1College of Resources and Environment, Academy of Agricultural Sciences, Key Laboratory of Efficient Utilization of Soil and Fertilizer Resources, Southwest University, Chongqing, 400716, China
  • 2Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
  • 3Institution of Crop Science, University of Hohenheim, Stuttgart, 70593, Germany
  • 4College of life sciences, Zhejiang University, Zhejiang, 310058, China
  • 5Chongqing Academy of Agriculture Sciences, Chongqing 40000, China
  • 6Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
  • 7Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia 4067, QLD, Australia

Abstract. Recycling of agricultural wastes to reduce mineral fertilizer input, in particular phosphorous (P), plays crucial role in sustainable agriculture production. Understanding the transformation of phosphorous (P) fractions and their bioavailability following soil application of different renewable P-contained fertilizers is very important for improving P use efficiency and reducing environmental risks. In this study, the effects of mineral P-fertilizer superphosphate and recycled P-fertilizers, i.e., poultry manure, cattle manure, maize straw and cattle bone meal, on their distribution to different soil P fractions, their transformation and the availability of soil P were determined by soil P sequential fractionation and 31P solution nuclear magnetic resonance (NMR). The results showed that addition of mineral P fertilizer, poultry manure and cattle manure increased P fixation in a red soil more than that in a fluvo-aquic soil. In both fluvo-aquic and red soils, cattle manure out-performed all other recycled P sources used in improving soil P availability. The concentration of Olsen-P in fluvo-aquic and red soils supplemented with cattle manure were increased by 41 %–380 % and 16 %–70 % than the other recycled P sources. A structural equation model (SEM) explained 95 % and 91 % of Olsen-P variation in fluvo-aquic and red soils, respectively. Labile P fractions had positive effects on Olsen-P of fluvo-aquic and red soils. 31P-NMR study showed that amount of orthophosphate was the main factor affecting the availability of P from different P sources. In summary, cattle manure was found to be a superior renewable source of P in improving bioavailable P in soil, and its use thus has considerable practical significance in P recycling.

Yuan Wang et al.

Status: open (until 29 Dec 2021)

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Yuan Wang et al.


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Short summary
The current study demonstrated that different P sources had different effects on soil P availability. They distributed P differently among different P fractions. Our result show that cattle manure out-performed all other recycled phosphorous (P) sources used in improving soil P availability. And addition of mineral P fertilizer, poultry manure and cattle manure increased P fixation in a red soil more than that in a fluvo-aquic soil.