DOI QR코드

DOI QR Code

Change in Available Phosphate by Application of Phosphate Fertilizer in Long-term Fertilization Experiment for Paddy Soil

인산질비료 장기연용 논토양에서 유효인산 변동

  • Kim, Myung-Sook (Soil & Fertilizer Management Division, Department of Agricultural Environment, National Institute of Agricultural Science, Rural Development Administration) ;
  • Kim, Seok-Cheol (Soil & Fertilizer Management Division, Department of Agricultural Environment, National Institute of Agricultural Science, Rural Development Administration) ;
  • Yun, Sun-Gang (Soil & Fertilizer Management Division, Department of Agricultural Environment, National Institute of Agricultural Science, Rural Development Administration) ;
  • Park, Seong-Jin (Soil & Fertilizer Management Division, Department of Agricultural Environment, National Institute of Agricultural Science, Rural Development Administration) ;
  • Lee, Chang-Hoon (Soil & Fertilizer Management Division, Department of Agricultural Environment, National Institute of Agricultural Science, Rural Development Administration)
  • 김명숙 (농촌진흥청 국립농업과학원 농업환경부 토양비료과) ;
  • 김석철 (농촌진흥청 국립농업과학원 농업환경부 토양비료과) ;
  • 윤순강 (농촌진흥청 국립농업과학원 농업환경부 토양비료과) ;
  • 박성진 (농촌진흥청 국립농업과학원 농업환경부 토양비료과) ;
  • 이창훈 (농촌진흥청 국립농업과학원 농업환경부 토양비료과)
  • Received : 2017.08.24
  • Accepted : 2017.09.25
  • Published : 2017.09.30

Abstract

BACKGROUND: Phosphorus(P) is a vital factor for rice but excess input of phosphorus fertilizer can cause environmental risk and waste of fertilizer resources. We studied to assess the change of available phosphate, P balance, critical concentration of available phosphate under a rice single system. METHODS AND RESULTS: The changes of available phosphate of paddy soil were examined from long-term fertilization experiment which was started in 1954 at the National Academy of Agricultural Science. The treatments were no phosphate fertilization(No fert., and N), phosphate fertilization(NPK, NPKC, and NPKCLS). The available phosphorus concentrations in treatments without phosphate fertilizer (No fert. and N) were decreased continuously. But, after 47 years, available phosphate content in phosphate fertilizer treatment (NPK, NPKC, and NPKCLS) reached at the highest ($245{\sim}331mg\;kg^{-1}$), showing a tendency to decrease afterward. The mean annual P field balance in these treatments (NPK, NPKC, and NPKCLS) had positive values that varied from 16.6 to $17.5kg\;ha^{-1}year^{-1}$, and ratio of residual P were increased. These showed that phosphate fertilizer in soil were converted into the form of residual phosphorus which was not easily extracted by available phosphate extractant. Also, It was estimated that the critical value of available phosphate for rice cultivation was $120mg\;kg^{-1}$ using Cate-Nelson equation. CONCLUSION: We concluded that no more phosphate fertilizer should be applied in rice single system if soil available phosphate is higher than the critical P value.

Keywords

Available phosphate;Dynamics;Long-term experiment;Paddy soil

Acknowledgement

Supported by : National Institute of Agricultural Sciences, Rural Development Administration

References

  1. Cordell, D., Drangert, K. O., & White, S. (2009). The story of phosphorus: Global Environmental Change, 19(2), 137-316. https://doi.org/10.1016/j.gloenvcha.2009.01.004
  2. Lin, D. X., Hu, Feng., Fan, X. H., & Yang, L. Z. (2006). Effect of long-term fertilization on phosphorus transformation in paddy soil in the Taihu Lake region. Chinese Journal of Applied & Environmental Biology, 12(4), 453-456.
  3. Kim, P. J., Lee, S. M., Yoon, H. B., Park, Y. H., & Kim, S. C. (2000). Characteristic of phosphorus accumulation in organic farming fields. Korean Journal of Soil Science and Fertilizer, 33(4), 234-241.
  4. Kuo, S. (1996). Carbonate and gypsum. Sparks, D. L. (ed.). pp. 437-474. Methods of soil analysis. Part 2. Chemical methods. SSSA Book Ser. 5. SSSA, Madison, WI.
  5. Meek, B. D., Graham L. E., Donovan, T. J., & Mayberry, K. S. (1979). Phosphorus availability in a calcareous soil after high loading rates of animal manure. Soil Science Society of America Journal, 43(4), 714-744.
  6. Sharpley, A. N. (1995). Dependence of runoff phosphorus on extractable soil phosphorus. Journal of Environmental Quality, 24(5), 920-926.
  7. Shin, L. L., Shen, M. X., Lu, C. Y., Wang, H. H., Zhou, X. W., Jin, M. J., & Wu, T. D. (2014). Soil phosphorus dynamic, balance and critical P values in long-term fertilization experiment in Taihu Lake region, China. Journal of Integrative Agriculture, 14(12), 2446-2455.
  8. Yan, X., Wang, D., Zhang, H. L., Zhang, G., & Wei, Z. Q. (2013). Organic amendments affect phosphorus sorption characteristics in a paddy soil. Agriculture, Ecosystems & Environment, 175, 47-53. https://doi.org/10.1016/j.agee.2013.05.009
  9. Yoon, J. H., Hong, C. W., & Huh, B. L. (1982). Interrelationships among pH, pe, $Fe^{2+}$ and water soluble phosphate in reduced soil-water suspension. Korean Journal of Soil Science and Fertilizer, 15(3), 162-165.
  10. Chang, S. C., & Jackson, M. L. (1957). Fractionation of soil phosphorus. Soil Science, 84(2), 133-144. https://doi.org/10.1097/00010694-195708000-00005
  11. Cope Jr., J. T. (1981). Effects of 50 years of fertilization with phosphorus and potassium on soil test levels and yields at six locations. Soil Science Society of America Journal, 45(2), 342-347. https://doi.org/10.2136/sssaj1981.03615995004500020023x
  12. Cate, R. B., J. R., & Nelson, L. A. (1971). A simple statistical procedure for partioning soil test correlation data into two classes. Soil Science Society of America Proceedings, 35(4), 658-659. https://doi.org/10.2136/sssaj1971.03615995003500040048x