Article (Scientific journals)
Increment of soil phosphorus pool and activation coefficient through long-term combination of NPK fertilizers with manures in black soil
Wang, Qiong; Zhan, X.-Y.; Zhang, S.-X. et al.
2018In Journal of Plant Nutrition and Fertilizers, 24 (6), p. 1679-1688
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长期有机无机肥配施提高黑土磷含量和活化系数.pdf
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Keywords :
Black soil; Long-term fertilization; P availability; Phosphorus fraction
Abstract :
[en] [Objectives]: Long-term fertilization affects soil phosphorus (P) fraction and availability. The change of soil P and P fractions contents and the availability of soil P under long-term different fertilization were investigated, which will offer scientific support for P management in the black soil.[Methods]: The used longterm fertilization experiment was started in 1990 on a black soil in Gongzhuling City, Jilin Province. The cropping system was continues mono maize. The selected four treatments included no fertilizer (CK), applying urea and potash sulfate (NK), applying urea, super-calcium phosphate and potash sulfate (NPK), and NPK plus pig manure (NPKM). For the three chemical fertilizer treatments, the corresponding inputs were N 165 kg/hm2, P 36 kg/hm2 and K 68 kg/hm2. The pig manure input was 21 t/hm2, and the N-P-K input were 165-75-145 kg/hm2. Soil samples were collected for every five years (1990, 1995, 2000, 2005 and 2010). Using the Hedley sequential extraction method, the total P and Olsen-P and P fraction contents were measured, and the soil P activation coefficient(PAC) was calculated.[Results]: With the extension of the experimental years, the soil total P and Olsen-P contents and PAC in treatments of CK and NK displayed downward trends, while those in NPK and NPKM showed upward trends. Compared with the beginning samples, the soil total P and Olsen-P contents and PAC in NPKM treatment were respectively increased by 88.47%, 12.98 and 6.42 times; and those were decreased by 15.12% and 32.67%, 33.47% in CK and by 12.57%, 52.49% and 2.55% in NK treatment; and the Olsen-P contents and PAC were respectively increased by 1.65 and 2.67 times, and the total P contents were not significantly increased in NPK. The inorganic P was increased significantly in NPK and NPKM treatments, while the organic P was not. The inorganic P was the main fraction of soil P in black soil, accounting for 80.53%-90.43% of the total P. Mid-liable P was the main fraction in the P pool of black soil, and accounted for 50.37%-55.06% of the total P, while labile P fraction accounted for 7.61%-19.02%. The ratio of labile P fraction in total P, especially in inorganic P, was increased significantly in NPK and NPKM treatments. Resin-P, NaHCO3-Pi, NaOH-Pi, Conc. HCl-Pi, Residual-P contents were decreased in CK and NK treatments, Resin-P, NaHCO3-Pi, NaOH-Pi, Dil.HCl-Pi contents were increased and Conc. HCl-Pi, Residual-P contents were decreased in NPK treatment, all inorganic P fractions were increased in NPKM treatment. The variation of Olsen-P was significantly correlated with the contents of Resin-P, NaHCO3-Pi, NaOH-Pi, Conc. HCl-Po, and the coefficient was 0.972, 0.665, 0.860 and 0.605 in turn.[Conclusions]: Long-term combined application of NPK fertilizers plus manure not only has caused the significant increase of total P, Olsen-P contents, but also increased the ratio of labile P to inorganic P, and increased the availability of soil P. Therefore, the combined application of NPK and manure is recommended for the effective improvement of P fertility in black soil. © 2018 Chinese Academy of Agriculture Sciences,Editorial Department of Journal of Plant Nutrition and Fertilizer. All Rights Reserved.
Disciplines :
Agriculture & agronomy
Author, co-author :
Wang, Qiong  ;  Université de Liège - ULiège > Terra
Zhan, X.-Y.;  Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, National Engineering Laboratory for Improving Quality of Arable Land, Beijing, 100081, China, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
Zhang, S.-X.;  Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, National Engineering Laboratory for Improving Quality of Arable Land, Beijing, 100081, China
Peng, C.;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
Gao, H.-J.;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
Zhang, X.-Z.;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
Zhu, P.;  Agricultural Environment and Resources Center, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
Colinet, Gilles  ;  Université de Liège - ULiège > Département GxABT > Echanges Eau-Sol-Plantes
Language :
English
Title :
Increment of soil phosphorus pool and activation coefficient through long-term combination of NPK fertilizers with manures in black soil
Publication date :
2018
Journal title :
Journal of Plant Nutrition and Fertilizers
ISSN :
1008-505X
Publisher :
Chinese Academy of Agriculture Sciences,Editorial Department of Journal of Plant Nutrition and Fertilizer
Volume :
24
Issue :
6
Pages :
1679-1688
Peer reviewed :
Editorial Reviewed verified by ORBi
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since 31 August 2020

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