Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지
DOI QR코드

DOI QR Code

Effects of Nitrogen Fertilization Increment on Forage Crops Cultivation in Saemangum Reclaimed Land

새만금간척지 사료작물 재배시 질소증비 효과

  • 양창휴 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 김선 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 이장희 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 백남현 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 김택겸 (국립농업과학원) ;
  • 최원영 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 정재혁 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 이상복 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 이경보 (농촌진흥청 국립식량과학원 벼맥류부)
  • Received : 2012.01.31
  • Accepted : 2012.03.30
  • Published : 2012.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study was conducted to find out the optimum cropping system for the stable production of forage crops in the newly reclaimed land located at Gwanghwal region of Saemangum reclaimed land in which the soil is sandy loam (Munpo series). There were two treatments of nitrogen fertilization 20% increment based on the standard fertilization of 150, $200kg\;ha^{-1}$. Whole crop barley as the winter crop sowed on 27 October. After the whole crop barley was harvested at the end of May. Corn and sorghum${\times}$sudangrass as the summer crop sowed at the early of June successively on the same field. Emergence rate the whole crop barley was high while the summer crops were low. Soil salinity was increased during cultivation of summer crops. However, corn and sorghum${\times}$sudangrass were not damaged by salt. Increase of nitrogen fertilization made the growth of cultivation crops good, stem and leaf tended to have a lot of the mineral nutrients at heading stage and silking stage. After experiment, among soil chemical properties pH, content of exchangeable sodium were decreased and content of organic matter, available phosphate were increased. Dry matter yield were showed whole crop barley $13,170kg\;ha^{-1}$ and sorghum${\times}$sudangrass $19,440kg\;ha^{-1}$ by increment of nitrogen fertilization. Therefore, to improve the product and nutrient balance of reclaimed saline land comprehensive soil management should be considered.

본 연구는 새만금간척지 (광활지구) 신간척지에서 조사료의 안정생산을 위하여 사료작물 재배시 질소 증비효과, 생육 및 수량성을 검토코자 2008년 10월부터 2009년 10월까지 수행하였다. 동계 사료작물로 청보리 (영양), 하계 사료작물로 옥수수(광평옥), 수수${\times}$수단그라스 (G7)를 재배하여 토양화학성, 양분흡수량, 생육 및 수량성을 검토하였다. 공시토양은 유기물, 유효인산 및 치환성칼슘 함량이 매우 적었고 치환성 마그네슘 나트륨 함량이 많은 강알칼리성 염류토양 이었다. 재배기간 동안 토양염농도 변화는 0.1%이하를 나타냈고 염피해는 없었다. 동 하계작물 경엽 및 곡실 중 무기양분 함량은 질소증비로 증가하는 경향을 나타냈으며 옥수수에서 높았다. 특히 청보리 무기성분 중 T-N, CaO, MgO 함량은 일반농경지에서 재배된 것에 비하여 2배정도 낮은 반면에 $P_2O_5$, $Na_2O$ 함량은 2배정도 높았다. 청보리는 질소증비로 초장이 길고 경수 확보가 많았으며 $10,740{\sim}13,170kg\;ha^{-1}$ 건물수량을 나타냈다. 또한 하계작물은 질소증비로 초장이 길고 경직경이 굵었으며 옥수수 $13,120{\sim}15,050kg\;ha^{-1}$, 수수${\times}$수단그라스 $14,400{\sim}19,440kg\;ha^{-1}$ 건물수량을 나타냈다. 결론적으로 간척지토양은 생산성을 향상시키고 양분균형을 이루기 위하여 종합적인 토양관리가 선행되어야 할 것으로 생각된다.

Keywords

References

  1. Hur, B.K., M.S. Kim, K.H. Han, and W.S. Kang. 1989. The soil improvement and plant growth on the newly-reclaimed sloped land. III. Effects of soil improvement on the soil chemical properties and silage corn growth. Korean J. Soil Sci. Fert. 22:197-204.
  2. Ji, H.C., S.H. Lee, S.H. Yoon, W.H. Kim, and Y.C. Lim. 2010. Growth, forage production and quality of sorghum, sorghum${\times}$sudangrass and sudangrass hybrids at paddy field in middle region of Korea. Korean J. Grassl. Forage Sci. 30:9-14. https://doi.org/10.5333/KGFS.2010.30.1.009
  3. Ji, H.C., S.H. Lee, S.H. Yoon, O.D. Kwon, G.J. Choi, W.H. Kim, K.Y. Kim, and Y.C. Lim. 2010. Growth, forage production and quality of sorghum, sorghum${\times}$sudangrass and sudangrass hybrids at paddy field in southern region of Korea. Korean J. Grassl. Forage Sci. 30:109-114. https://doi.org/10.5333/KGFS.2010.30.2.109
  4. Kim, J.G. and M.S. Han. 1990. Effects of sand mulching on forage production in newly reclaimed tidal lands II. Studies on growth, dry matter accumulation and nutrient quality of selected forage crops grown on saline soils. Korean J. Grassl. Sci. 10:77-83.
  5. Lee, S.H. 2006. Plant taxonomic approach and soil salinity class for evaluation of crop salt tolerance in reclaimed tidelands. Ph. D. Seoul National University. Seoul, Korea.
  6. MIFAFF. 2010. Outlook of agriculture. Ministry for Food, Agriculture, Forestry and Fisheries.
  7. NIAST. 2000. Analytical methods of soil and plant. National Institute of Agricultural Science and Technology, RDA, Suwon, Korea.
  8. Phillips, J.M. 1991. Coastal bermudagrass production as influenced by sulfur and magnesium rates and timing at three soil acidity levels. America Forage and Grassland Council Proceedings. pp. 175-178.
  9. RDA. 2003. Standard of analysis and survey for agricultural research. Rural Development Administration. Suwon. Korea.
  10. RRI. 1998. Development of cultivation techniques for upland crops in the reclaimed land. Res. Rpt. Rural Research Institute. pp. 90-116, Korea Rural Community & Agriculture Corporation.
  11. RRI. 2006. Agricultural complex development for upland & horticultural crops in the Seamangeum reclaimed farmland. Res. Rpt. Rural Research Institute. pp 1-504, Korea Rural Community & Agriculture Corporation.
  12. RRI. 2007. Development method of the future agriculture complex in reclaimed land. Res. Rpt. Rural Research Institute. pp 1-400, Korea Rural Community & Agriculture Corporation.
  13. Sameni, A.M and A. Kasraian. 2004. Effect of agricultural sulfur on characteristics of different calcareous soils from dry regions of Iran. III. Reclaiming effects on structure and hydraulic conductivity of the soils under saline-sodic conditions. Comm. Soil Sci. Plant Anal. 35:1235-1246. https://doi.org/10.1081/CSS-120037542
  14. Shin, J.S., W.H. Kim, S.H. Lee, S.H. Yoon, E.S. Chung, and Y.C. Lim. 2004. Comparison of dry matter and feed value of major summer forage crops in the reclaimed tidal land. Korean J. Grassl. Sci. 24:335-340. https://doi.org/10.5333/KGFS.2004.24.4.335
  15. Shin, J.S., S.H. Lee, W.H. Kim, S.H. Yoon, J.G. Kim, and J.W. Nam. 2005. Comparison of dry matter and feed value of major winter forage crops in the reclaimed tidal land. Korean J. Grassl. Sci. 25:113-118. https://doi.org/10.5333/KGFS.2005.25.2.113
  16. Shin, J.S., S.H. Lee, W.H. Kim, J.G. Kim, S.H. Yoon, and K.B. Lim. 2005. Effects of ammonium sulfate and potassium sulfate fertilizer on dry matter yield and forage quality of sorghum${\times}$sudangrass hybrid in reclaimed tidal land. Korean J. Grassl. Sci. 25:245-250. https://doi.org/10.5333/KGFS.2005.25.4.245
  17. Shin, J.S., W.H. Kim, S.H. Lee, and Y.C. Lim. 2006. Effects of urea and ammonium sulfate application on yield and nutritive value of whole crop barley in reclaimed tideland. Korean J. Grassl. Sci. 26:25-30. https://doi.org/10.5333/KGFS.2006.26.1.025
  18. Sohn, Y.M., G.Y. Jeon, J.D. Song, J.H. Lee, and M.E. Park. 2009. Effect of soil salinity variation on the growth of barley, rye and oat seeded at the newly reclaimed tidal lands in Korea. Korean J. Soil Sci. Fert. 42:415-422.
  19. Yoo, S.H. and M.E. Park. 2004. Proposal of land-use planing for agricultural use of the Saemangeum reclaimed land. J. Soc. Agr. Res. Reclaimed Lands 2:68-91.
  20. Yoo, C.H. 2004. The management of working-level on reclaimed saline soil. J. Soc. Agr. Res. Reclaimed Lands 2:16-31.

Cited by

  1. Effect of Rice Straw Application on Yield of Whole Crop Barley and Change in Soil Properties under Upland Condition in Saemangeum Reclaimed Tidal Land vol.47, pp.6, 2014, https://doi.org/10.7745/KJSSF.2014.47.6.586