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Received: 2004-05-10

Revision Accepted: 2004-10-11

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Cited: 5

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.3 P.195~201

10.1631/jzus.2005.B0195


Study on structural characteristics of pillared clay modified phosphate fertilizers and its increase efficiency mechanism


Author(s):  WU Ping-xiao, LIAO Zong-wen

Affiliation(s):  School of Envirnoment Science and Engineering, South China University of Technology, Guangzhou 510640, China; more

Corresponding email(s):   pppxwu@scut.edu.cn

Key Words:  High-efficiency phosphate fertilizers, Structures, Pillared clay, Pot experiment


WU Ping-xiao, LIAO Zong-wen. Study on structural characteristics of pillared clay modified phosphate fertilizers and its increase efficiency mechanism[J]. Journal of Zhejiang University Science B, 2005, 6(8): 195~201.

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author="WU Ping-xiao, LIAO Zong-wen",
journal="Journal of Zhejiang University Science B",
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pages="195~201",
year="2005",
publisher="Zhejiang University Press & Springer",
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}

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T1 - Study on structural characteristics of pillared clay modified phosphate fertilizers and its increase efficiency mechanism
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Abstract: 
Three types of new high-efficiency phosphate fertilizers were made when pillared clays at certain proportions were added into ground phosphate rock. Chemical analyses showed that their soluble phosphorus content decreased more than that of superphosphate. pot experiment showed that, under equal weights, the new fertilizers increased their efficiency by a large margin over that of superphosphate. Researches on their structures by means of XRD, IR and EPR spectrum revealed that their crystal structures changed considerably, improving their activity and preventing the fixation of available phosphorus in the soil, and consequently, greatly improved the bioavailability and became the main cause of the increase of biomass.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Chesworth, W., van Straaten, P., Smith, P., Sadura, S., 1987. Solubility of apatite in clay and aeolite-bearing system: applications to agriculture. Appl. Clay. Sci., 2:291-297.

[2] Kithome, M., Paul, J., Lavkulich, W., 1998. Kinetics of ammonium absorption and desorption by the natural zeolite clinoptilolite. Soil. Sci. Soc. Am. J., 62:622-629.

[3] Lai, T.M., Eberl, D.D., 1986. Controlled and renewable release of phosphorus in soils from mixtures of phosphate rock and ammonium-exchanged clinoptilolite. Zeolites, 6:129-132.

[4] Li, Q.K., Jiang, B.F., Lu, R.K., 1992. The Agricultural Application of Phosphate Rock in China. Jiangsu Science and Technology Press, Nannjing (in Chinese).

[5] Liao, Z.W., Fan, X.L., Liu, K.X., 1999. Column Orientation-Balance (COB) and Technique Development for Controlled Released Fertilizer (CRF). In: Chemical Fertilizer Technology and Equipment. Chemical industry press, Beijing, p.98-103 (in Chinese).

[6] Liao, Z.W., Mao, X.Y., Wang, D.H., Wu, P.X., 2003. The Produce Method of Partially Acidified Modified Phosphate Fertilizer. Chinese Patent, No. 00117173.9.

[7] Lu, Q.M., Liao, Z.W., 1997. Comparative study on characteristics of P fixation by Mn, Fe and Al. Pedosphere, 7(4):325-330.

[8] Peng, W.S., Liu, G.K., Ke, L.Q., 1986. The IR spectrum of a few apalites. ACTA Mineralogica Sinica, 6(l):26-35 (in Chinese).

[9] Wang, G.L., 1998. The effects of superficial absorption layer on the release of P of phosphate rock. ACTA Pedologica Sinica, 35(l):65-69 (in Chinese).

[10] Wu, P.X., Liao, Z.W., Zhang, H.F., Guo, J.G., 2001. Adsorption of phenol on inorganic-organic pillared montmorillonite in polluted water. Environment International, 26(7):401-407.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

mayadevi M R@Kerala agricultural university<manthra34@gmail.com>

2013-05-03 14:17:32

This is very important article for my doctral seminar

zanest@physics<zanko99@yahoo.com>

2010-11-03 05:28:18

I interesting the study of Clay in my region

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