KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
권호 표지

Improving Grain Quality by Controlling Top Dressing of Nitrogen Application Ratio

일품벼 도정 및 쌀 품질 향상을 위한 분시비율 개선연구

  • Won, Jong-Gun (Gyeongbuk Agricultural Research & Extension Services) ;
  • Ahn, Duok-Jong (Gyeongbuk Agricultural Research & Extension Services) ;
  • Kim, Se-Jong (Gyeongbuk Agricultural Research & Extension Services) ;
  • Choi, Chung-Don (Gyeongbuk Agricultural Research & Extension Services) ;
  • Lee, Sang-Chul (Division of Plant Bioscience, College of Agriculture and Life Science, Kyungpook National University)
  • 원종건 (경상북도 농업기술원) ;
  • 안덕종 (경상북도 농업기술원) ;
  • 김세종 (경상북도 농업기술원) ;
  • 최충돈 (경상북도 농업기술원) ;
  • 이상철 (경북대학교 농업생명과학대학 식물생명과학부)
  • Published : 2008.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study was carried out to improve the rice grain quality of Ilpum cultivar, especially to reduce the chalky rice rate by controlling top dressing of nitrogen application ratio at the tillering and panicle initiation stage. In the rice plant growth, the number of tiller and leaf area index of maximum tillering stage were influenced by basal dressing and top dressing at tillering stage; however those of heading stage were mainly influenced by top dressing at panicle initiation stage. In yield and yield components, they were influence by the top dressing at panicle initiation stage and the rice yield was increased by percentage of the top dressing. The protein content of rice grain was increased as the rate of top dressing at panicle initiation stage was increased. The rate of chalky and damaged rice was remarkably increased as the top dressing ratio was increased, resulting in reducing the rate of head rice rate. As the results, the characteristics of milling and rice quality was improved when the amount of top dress was reduced as 50% at the panicle initiation stage, and the yield of head rice also increased.

일품벼에서 많이 발생되고 있는 분상질미를 경감시켜 외관상 품위 및 도정수율을 향상시키고, 쌀의 단백질 함량을 줄여 품질을 향상시킬 수 있는 재배방법을 개발코자 질소 분시비율을 조정하여 시험한 결과는 다음과 같다. 1. 최고 분얼기의 경수는 기비와 분얼비의 영향을 많이 받았으며 엽면적지수 또한 같은 경향을 보였으나, 출수기의 경수 및 엽면적 지수 등은 수비의 영향을 많이 받았다. 2. 수량 및 수량구성요소는 대체로 수비의 영향을 많이 받아 수장, 영화수, 백미 수량 등은 수비 시비량의 증감과 일치하는 경향이었다. 3. 쌀의 이화학적 특징은 단백질 함량이 수비 시비량이 많을수록 높아졌고, 특히 분상질미, 피해립이 차지하는 비율이 현저히 높아져 완전미율은 낮아지는 경향이었다. 4. 따라서 쌀의 외관상 품위 및 도정 특성은 총질소 시비량이 동일할 경우 수비의 시비량을 50% 감비하여 시용한 구에서 향상되었으며, 완전미 수량도 높았다.

Keywords

References

  1. 오용비, 김정일, 박정화, 이숙제, 오윤진, 박래경. 1991. 미질에 관한 연구 - (1) 심복백미의 식미특성과 재배환경 요인에 따른 변이. 농사시험연구논문집(수도) 33(3) : 91-98
  2. 이선형. 2007. 경북의 쌀 산업 경쟁력 제고방안. 수도작특화전문경영. 경북대학교 최고농업경영자과정
  3. 이은웅. 1981. 수도작. 향문사. pp. 91-93
  4. 이종훈, 오윤진. 1991. N, P, K 및 유기물의 23년간 연용이 수도의 수량생산성과 미질에 미치는 영향. 한국작물학회지 36(4) : 332-339
  5. 손재근. 2007. 경북지역 특수성에 기반한 쌀 산업 발전전략. 수도작특화전문경영. 경북대학교 최고농업경영자과정
  6. De Datta, S. K., W. N. Obcemea, and R. K. Jana. 1972. Protein content of rice grain as affected by nitrogen fertilizer and some triazines and substituted ureas. Agron. J. 64 : 785-788
  7. Honjyo, K. and K. Fujise. 1982. Studies of Protein Content in Rice Grain. VI. Effects of the foliar application of urea on the translocation of nitrogen to the ear and the protein content of brown rice. Jpn. J. Crop Sci. 51(2) : 196-204
  8. Honjyo, K. and M. Hirano. 1979a. Studies on Protein Content in Rice Grain. III. Effect of nitrogen top-dressing at full heading time translocation of nitrogen to the ear. Jpn. J. Crop Sci. 48(4) : 517-524
  9. Honjyo, K. and M. Hirano. 1979b. Studies on Protein Content in Rice Grain. IV. Varietal differences of the effect of nitrogen top-dressing at full heading time on the protein content of rice. Jpn. J. Crop Sci. 48(4) : 525-530
  10. Honjyo, K., M. Hirano, and K. Fujise. 1980. Studies on Protein Content in Rice Grain. V. Effects of topdressing of ammonium sulfate and foliar application of urea at full heading time on the translocation of nitrogen to the ears and the protein content of blown rice. Jpn. J. Crop Sci. 49(3) : 467-474
  11. Imabayashi, S., T. Ogata, and Y. Matsue. 1998. Annual and locational variations in physicochemical properties of rice. Jpn. J. Crop Sci. 67(1) : 30-35
  12. Islam, N., S. Inanaga, N. Chishaki, and T. Horiguchi. 1996. Effect of N top-dressing on protein content in Japonica and Indica rice grains. Cereal Chem. 42 : 225-235
  13. Kim, M. H., J. D. Fu, and B. W. Lee. 2006. Determining nitrogen topdressing rate at panicle initiation stage of rice based on vegetation index and SPAD reading. Korean J. Crop Sci. 51: 386-395
  14. Kim, M. H., K. J. Lee, and B. W. Lee. 2007. Response of grain protein content to nitrogen topdressing rate at panicle initiation stage under different growth and plant nitrogen status of rice. Korean J. Crop Sci. 52: 104-111
  15. Kwak, K. S., J. I. Lee, J. C. Shin, J. K. Kim, J. R. Son, J. H. Kim, H. K. Park, and J. H. Seo. 2005. The improvement of the grain color during the ripening stage and head rice recovery of Ilpumbyeo. Treat. of Crop Sci. 6: 207-217
  16. Nguyen, T. H., M. H. Kim, and B. W. Lee. 2006. Response of grain yield and milled-rice protein content to nitrogen topdressing timing at panicle initiation stage of rice. Korean J. Crop Sci. 51 : 1-13
  17. Patrick, R. M., F. H. Hoskins, E. Wilson, and F. J. Peterson. 1974. Protein and amino acid content of rice as affected by application of nitrogen fertilizer. Cereal Chem. 51 : 84-95
  18. Perez, C. M., B. O. Juliano, S. P. Liboon, M. Alcantara, and K. G. Cassman. 1996. Effects of late nitrogen fertilizer application on head rice yield, protein content, and grain quality of rice. Cereal Chem. 73 : 556-560
  19. Shin, O. K., C. D. Whang, S. T. Park, and S. Y. Kim. 2004. Evaluation of a proper nitrogen splitting method in machine transplanting rice. Korean J. Intl. Agri. 16 : 191-195
  20. Souza, S. R., E. M. L. M. Stark, and M. S. Fernandes. 1993. Effect of supplemental nitrogen on the quality of rice proteins. J. Plant Nutr. 16 : 1739-1751
  21. Tamaki, M., M. Ebata, T. Tashiro, and M. Ishikawa. 1989. Physico-ecological Studies on quality formation of rice kernel. I. Effects of nitrogen top-dressed at full heading time and air temperature during ripening period on quality of rice kernel. Jpn. J. Crop Sci. 58(4) : 653-658
  22. Tashiro, T. and M. Ebata. 1979. Studies on white-belly rice kernel. VI. Effect of nitrogen top dressing at heading stage on the occurrence of white-belly kernel. Jpn. J. Crop Sci. 48(1) : 99-106