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Soil Phosphorus Forms in Saline Soil after the Application of Biomass Materials

文献类型： 外文期刊

作者： Guan, Xuewei 1 ; Chen, Jinlin 2 ; Liu, Guangming 1 ; Wang, Xiuping 3 ;

作者机构： 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China

2.Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Peoples R China

3.Hebei Acad Agr & Forestry Sci, Inst Coast Agr, Tangshan 063200, Peoples R China

关键词： soil columns; soil phosphorus forms; soil's properties; biomass materials; saline soil

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2024 年 14 卷 2 期

页码：

收录情况： SCI

摘要： Although the application of biological materials has shown potential in improving the environment of salinized soil, the impact on the transformation of soil phosphorus forms in salinized soil, especially when combined with B. mucilaginosus (BM), has rarely been studied. Therefore, this study investigated soil's properties and phosphorus forms, as well as their relationship, in salinized soil after the application of different biological materials, including rice straw (RS), biochar (B), acidified biochar (AB), BM, RS+BM, B+BM, and AB+BM. A sequential extraction procedure was employed to determine the soil organic/inorganic phosphorus forms (Po/Pi). In our study, the contents of the soil's resin-P, NaHCO3-Pi, NaOH-Pi, and HCl-P increased by 50-341.66%, 4.08-184.63%, 37.45-163.45%, and 10.19-38.29%, respectively, with the application of the biological materials compared to with conventional fertilization (CK1). However, the contents of the soil's NaHCO3-Po, NaOH-Po, and residual-P significantly decreased in comparison to with CK1, particularly in the soils that received a combined application with biological materials and BM. Furthermore, the results from the statistical analysis revealed that the application of biological materials could increase the level of soil stable phosphorus, facilitate the transformation from soil stable phosphorus and soil unstable Po to soil unstable Pi, and enhance the effectiveness of soil phosphorus, especially when combined with BM, particularly in soil with AB+BM.

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