Article (Scientific journals)
Characteristics of inorganic phosphorus fractions and their correlations with soil properties in three non-acidic soils
ZHANG, Nai-yu; Wang, Qiong; ZHAN, Xiao-ying et al.
2022In Journal of Integrative Agriculture, 21 (12), p. 3626 - 3636
Peer reviewed
 

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Keywords :
long-term fertilization; non-acidic soils; organic matter; phosphorus fractions; soil properties; Food Science; Biochemistry; Ecology; Food Animals; Animal Science and Zoology; Agronomy and Crop Science; Plant Science
Abstract :
[en] Understanding the characteristics and influences of various factors on phosphorus (P) fractions is of significance for promoting the efficiency of soil P. Based on long-term experiments on black soil, fluvo-aquic soil, and loess soil, which belong to Phaeozems, Cambisols, and Anthrosols in the World Reference Base for Soil Resources (WRB), respectively, five fertilization practices were selected and divided into three groups: no P fertilizer (CK/NK), balanced fertilizer (NPK/NPKS), and manure plus mineral fertilizer (NPKM). Soil inorganic P (Pi) fractions and soil properties were analyzed to investigate the characteristics of the Pi fractions and the relationships between Pi fractions and various soil properties. The results showed that the proportion of Ca10-P in the sum of total Pi fractions was the highest in the three soils, accounting for 33.5% in black soil, 48.8% in fluvo-aquic soil, and 44.8% in loess soil. Long-term fertilization practices resulted in periodic changes in soil Pi accumulation or depletion. For black soil and fluvo-aquic soil, the Pi accumulation was higher in the late period (10–20 years) of fertilization than in the early period (0–10 years) under NPK/NPKS and NPKM, whereas the opposite result was found in loess soil. The Pi accumulation occurred in all Pi fractions in black soil; mainly in Ca8-P, Fe-P, and Ca10-P in fluvo-aquic soil; and in Ca2-P, Ca8-P, and O-P in loess soil. Under CK/NK, the soil Pi was depleted mainly in the early period in each of the three soils. In addition to the labile Pi (Ca2-P) and moderately labile Pi (Ca8-P, Fe-P, Al-P), the Ca10-P in black soil and fluvo-aquic soil and O-P in loess soil could also be used by crops. Redundancy analysis showed that soil properties explained more than 90% of the variation in the Pi fractions in each soil, and the explanatory percentages of soil organic matter (SOM) were 43.6% in black soil, 74.6% in fluvo-aquic, and 38.2% in loess soil. Consequently, decisions regarding the application of P fertilizer should consider the accumulation rate and the variations in Pi fractions driven by soil properties in non-acidic soils.
Disciplines :
Agriculture & agronomy
Author, co-author :
ZHANG, Nai-yu;  Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
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
ZHAN, Xiao-ying;  Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
WU, Qi-hua;  Institute of Bioengineering, Guangdong Academy of Sciences/Guangdong Modern Agricultural Technology Research and Development Center, Guangzhou, China
HUANG, Shao-min;  Institute of Plant Nutrient, Agricultural Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, China
ZHU, Ping;  Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, China
YANG, Xue-yun;  College of Natural Resources and Environment, Northwest A&F University, Yangling, 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
Language :
English
Title :
Characteristics of inorganic phosphorus fractions and their correlations with soil properties in three non-acidic soils
Publication date :
December 2022
Journal title :
Journal of Integrative Agriculture
ISSN :
2095-3119
Publisher :
Editorial Department of Scientia Agricultura Sinica
Volume :
21
Issue :
12
Pages :
3626 - 3636
Peer reviewed :
Peer reviewed
Funding text :
We acknowledge all the staff for their valuable work associated with the Long-term Monitoring Network of Soil Fertility and Fertilizer Effects in China. This research was supported by the National Key Research and Development Program of China (2021YFD1500205) and the National Natural Science Foundation of China (41977103).
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