References

Agrochemistry Committee of Soil Science of China, 1983. Methods of Soil and Agochemisty Conventional Analysis. Science Press, Beijing, China.

Cade-Menum, B.J. and C.M. Preston, 1996. A comparison of soil extraction procedures for ³¹P NMR spectroscopy. Soil Sci., 161: 770-785.
Direct Link  |  

Castaldi, P., L. Santona, S. Enzo and P. Melis, 2008. Sorption process and XRD analysis of a natural zeolite exchanged with Pb²⁺, Cd²⁺ and Zn²⁺ cations. J. Hazard. Mater., 156: 428-434.
CrossRef  |  

Chinese Academy of Sciences, 1984. Climate of Xizang (Tibet). The Series of the Comprehensive Scientific Expedition to the Qinghai-Xizang (Tibet) Plateau. Science Press, Beijing, China, (In Chinese).

Jalali, M. and F. Ranjbar, 2010. Aging effects on phosphorus transformation rate and fractionation in some calcareous soils. Geoderma, 155: 101-106.
CrossRef  |  

Jiang, J., R.K. Xu and A.Z. Zhao, 2010. Comparison of the surface chemical properties of four soils derived from quaternary red earth as related to soil evolution. Catena, 80: 154-161.
CrossRef  |  

Sei, J., F. Morato, G. Kra, S. Staunton, H. Quiquampoix, J.C. Jumasc and J. Olivier-Fourcadec, 2006. Mineralogical, crystallographic and morphological characteristics of natural kaolins from the Ivory Coast (West Africa). J. Afr. Earth Sci., 46: 245-252.
CrossRef  |  

Seiter, J.M., K.E. Staata-Borda, M. Ginder-Vogel and D.L. Sparks, 2008. XANES spectroscopic analysis of phosphorus speciation in alum-amended poultry litter. J. Eniron. Qual., 37: 477-485.
CrossRef  |  Direct Link  |  

Shaltout, A.A., M.A. Allam and M.A. Moharram, 2011. FTIR spectroscopic, thermal and XRD characterization of hydroxyapatite from new natural sources. Spectrochim. Acta Part A: Mol. Biomol. Spectrosc., 83: 56-60.
CrossRef  |  

Shand, C.A., G. Coutts, S. Hillier, D.G. Lumsdon, A. Chudek and J. Eubeler, 2005. Phosphorus composition of sheep feces and changes in the field determined by ³¹P NMR spectroscopy and XRPD. Environ. Sci. Technol., 39: 9205-9210.
PubMed  |  Direct Link  |  

Shen, J., R. Li, F. Zhang, J. Fan, C. Tang and Z. Rengel, 2004. Crop yields, soil fertility and phosphorus fractions in response to long-term fertilization under rice monoculture system on a calcareous soil. Field Crop. Res., 86: 225-238.
CrossRef  |  

Sun, X. and Y. Li, 2004. Colloidal carbon spheres and their core/shell structures with noble-metal nanoparticles. Angewandte Chem. Int. Edn., 43: 597-601.
CrossRef  |  

Toor, G.S., B.J. Cade-Menum and J.T. Sims, 2005. Establishing a linkage between phosphorus forms in dairy diets, feces and manures. J. Eniron. Qual., 34: 1380-1391.
CrossRef  |  

Wu, Q.Z., X. Chen, P. Zhang, Y.C. Han, X.M. Chen, Y.H. Yan and S.P. Li, 2008. Amino acid-assisted synthesis of ZnO hierarchical architectures and their novel photocatalytic activities. Cryst. Growth Des., 8: 3010-3018.
CrossRef  |  

Yu, S., Z.L. He, P.J. Stoffella, D.V. Calvert, X.E. Yang, D.J. Banks and V.C. Baligar, 2006. Surface runoff phosphorus (P) loss in relation to phosphatase activity and soil P fractions in Florida sandy soils under citrus production. Soil Biol. Biochem., 38: 619-628.
CrossRef  |  

Zhang, Y.D., C.C. Pan, Y.G. Zhang and W.W. He, 2011. Self-template hydrothermal synthesis ZnS microspheres. Cryst. Res. Technol., 46: 718-722.
CrossRef  |  

Zhang, Y.D., G.C. Jiang, K.W. Wong and Z. Zheng, 2010. Green synthesis of indium oxide hollow spheres with specific sensing activities for flammable organic vapors. Sensor Lett., 8: 355-361.
CrossRef  |  

Zhang, Y.D., W.J. Fa, F.L. Yang, Z. Zheng and P.Y. Zhang, 2010. Effect of annealing temperature on the structural and optical properties of ZnO thin films prepared by sol-gel method. Ionics, 16: 815-820.
CrossRef  |  

Zhang, Y.D., Z. Zheng and F.L. Yang, 2010. Highly sensitive and selective alcohol sensors based on Ag-doped In₂O₃ coating. Ind. Eng. Chem. Res., 49: 3539-3543.
CrossRef  |