Article (Scientific journals)
Phosphorus adsorption and desorption characteristics and its response to soil properties of black soil under long-term different fertilization
Wang, Qiong; Zhan, XiaoYing; Zhang, ShuXiang et al.
2019In Scientia Agricultura Sinica, 52 (21), p. 3866 - 3877
Editorial reviewed
 

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长期不同施肥处理黑土磷的吸附-解吸特征及 对土壤性质的响应(1).pdf
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Keywords :
Black soil; Long-term fertilization; P adsorption and desorption; Soil properties; Agricultural and Biological Sciences (all)
Abstract :
[en] Objective: Fertilizer is generally added to agricultural soil to meet the needs of crop production, but long-term over fertilization changes soil phosphorus (P) pool and soil properties. This study evaluated the characteristics change of P adsorption and desorption and its response to soil properties under long-term fertilization, to do a favor to provide theoretical basis of rational fertilizer application and improve the P availability of black soil. Method: Four treatments, including no fertilizer (CK), urea and potash sulphate (NK), urea, super-calcium phosphate and potash sulphate (NPK), and NPK plus pig manure (NPKM), were investigated in a 21-year (1989-2010) long-term fertilization experiment at Gongzhuling (Jilin Province) of China. The crop of cropping system was maize. Soil samples were collected in 1990, 2000 and 2010 at 0-20 cm depth to analyze soil properties and to measure soil P adsorption and desorption characteristics. Langmuir equation was used to fit the P adsorption curve, and then the maximum adsorption capacity (Qmax), adsorption constant (K), buffering capacity of soil P (MBC), and P sorption saturation (DPS) were calculated according to Langmuir equation. Result: There was a good fitness between the P adsorption curve and Langmuir equation (R2=0.93-0.99, P<0.01). There existed difference for P adsorption and desorption characteristic under the four treatments. Over time, compared with initial year, for CK and NK treatments, the Qmax value increased by 1.83 and 1.61 times, MBC value increased by 0.80% and 49.40%, DPS value decreased by 92.04% and 87.50%, Readily Desorbable Phosphorus (RDP) value decreased by 20.00% and 82.83%, respectively; for NPK treatment, Qmax and DPS value increased by 81.87% and 79.56%, MBC and RDP value decreased by 79.37% and 48.57%, respectively, while under NPKM treatment, the Qmax and MBC value decreased by 33.35% and 78.52%, DPS and RDP values increased by 11.36 and 1.48 times, respectively. After 21 years experiments, compared with CK and NPK treatments, the Qmax and MBC value of NPKM treatment decreased by 64.66% and 49.52%, 81.87% and 79.56%, respectively; the DPS and RDP value of NPKM treatment increased by 110 and 3.81 times, 4.36 times and 78.57%, respectively. Compared with other treatments, the Total-P, Olsen-P, soil organic matter (SOM) and CaCO3 contents increased and SSA decreased significantly, but the pH, free Fe2O3 and Al2O3 value kept unchanged under NPKM treatment. RDA test showed that SOM and Total-P were the main factors that explained 49.5% and 18.7% of the total variation (P<0.05) which caused the difference of P adsorption desorption characteristic parameters among four treatments. Conclusion: Long-term combination of NPK fertilizers with manures could significantly increase SOM and P accumulation contents, decrease the soil adsorption capacity and increase desorption capacity, and improve P availability in soil, but it significantly increased the DPS value, easily thereby caused the risk of phosphorus loss. Therefore, various management practices and inorganic and organic P fertilizer input amounts should be considered to reduce P losses from this area.
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
Zhan, XiaoYing;  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 Environment and Sustainable Development in Agriculture, Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
Zhang, ShuXiang;  Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, National Engineering Laboratory for Improving Quality of Arable Land, Beijing, China
Peng, Chang;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, China
Gao, HongJun;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, China
Zhang, XiuZhi;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, China
Zhu, Ping;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, China
Gilles, Colinet;  Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
Language :
English
Title :
Phosphorus adsorption and desorption characteristics and its response to soil properties of black soil under long-term different fertilization
Publication date :
November 2019
Journal title :
Scientia Agricultura Sinica
ISSN :
0578-1752
Publisher :
Editorial Department of Scientia Agricultura Sinica
Volume :
52
Issue :
21
Pages :
3866 - 3877
Peer reviewed :
Editorial reviewed
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since 21 September 2022

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