black soil; long-term experiment; phosphorus availability; phosphorus fractions; soil profile; Food Science; Biochemistry; Ecology; Food Animals; Animal Science and Zoology; Agronomy and Crop Science; Plant Science
Abstract :
[en] Investigating the dynamics and distribution of soil phosphorus (P) fractions can provide a basis for enhancing P utilization by crops. Four treatments from a 29-year long-term experiment in black soil with maize cropping were involved in this study: no fertilizer (CK), inorganic nitrogen and potassium (NK), inorganic nitrogen, phosphorus, and potassium (NPK), and NPK plus manure (NPKM). We analyzed soil P fractions in different soil layers using a modified Hedley sequential method. The long-term NPKM treatment significantly increased total P by 0.6–1.6 times in the different soil layers. The Olsen-P concentration far exceeded the environmental threshold for soil Olsen-P (50.6 mg kg−1) in the NPKM treatment in the 0–60 cm soil profile. Moreover, the concentrations and proportion of labile and partially labile inorganic P (Pi) fractions (i.e., NaHCO3-extracted Pi, NaOH-extracted Pi, and dilute HCl-extracted Pi) to the sum of all P fractions (Pt) in the 0–60 cm soil profile were higher in the NPKM treatment than in the NPK treatment, indicating that manure could promote the transformation of non-labile into more labile forms of P in soil, possibly by manure reducing P fixation by soil particles. Soil organic matter, Mehlich-3 extractable iron (Fe), and organic-bound aluminum were increased by fertilization, and were the main factors influencing the differences in the P fractions in the 0–20 cm soil layer. Soil mineral components, i.e., free Fe oxide and CaCO3, were the main factors influencing the P fractions in the subsoil. The soil P transformation process varied with soil layer and fertilization. Application of manure fertilizer can increase the labile (Olsen) P concentrations of the various soil layers, and thus should reduce the mineral P fertilizer requirement for crop growth and reduce potential environmental damage.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Wang, Qiong ; Université de Liège - ULiège > TERRA Research Centre ; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
QIN, Zhen-han; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
ZHANG, Wei-wei; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
CHEN, Yan-hua; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China ; Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
ZHU, Ping; Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, China
PENG, Chang; Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, China
WANG, Le; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
ZHANG, Shu-xiang; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
Colinet, Gilles ; Université de Liège - ULiège > TERRA Research Centre > Echanges Eau - Sol - Plantes
Language :
English
Title :
Effect of long-term fertilization on phosphorus fractions in different soil layers and their quantitative relationships with soil properties
Publication date :
2022
Journal title :
Journal of Integrative Agriculture
ISSN :
2095-3119
Publisher :
Editorial Department of Scientia Agricultura Sinica
We thank all staff for their valuable work associated with the National Soil Fertility and Fertilizer Effects Longterm Monitoring Network in China. This research was supported by the National Natural Science Foundation of China (41977103 and 41471249), and the Reform and Development Fund of Beijing Academy of Agriculture and Forestry Sciences, China (YZS201905). Appendices associated with this paper are available on http://www.ChinaAgriSci.com/V2/En/appendix.htmWe thank all staff for their valuable work associated with the National Soil Fertility and Fertilizer Effects Longterm Monitoring Network in China. This research was supported by the National Natural Science Foundation of China (41977103 and 41471249), and the Reform and Development Fund of Beijing Academy of Agriculture and Forestry Sciences, China (YZS201905).
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