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사료작물-벼 작부체계가 조생종 벼의 생육과 미질 특성 및 토양의 화학적 특성에 미치는 영향

Effects of Forage-Rice Cropping Systems on the Growth and Grain Quality of Early Maturing Rice Cultivars and Soil Chemical Properties in Paddy Fields in Southern Korea

  • 오서영 (농촌진흥청 국립식량과학원) ;
  • 오성환 (농촌진흥청 국립식량과학원) ;
  • 서종호 (농촌진흥청 국립식량과학원) ;
  • 최지수 (농촌진흥청 국립식량과학원)
  • 투고 : 2021.09.30
  • 심사 : 2021.11.23
  • 발행 : 2021.12.01

초록

본 연구에서는 사료작물-벼 2모작 작부체계에 적합한 벼 품종을 선발하고자, 사료작물 중 재배면적이 가장 많은 이탈리안라이그라스와 귀리를 연계한 2모작 작부체계에서 토양특성, 조생종 벼의 생육 특성과 미질의 변화를 조사하였다. 벼 앞그루로 겨울철에 휴경하였을 때보다 사료작물을 재배하였을 때 논 토양 내 pH가 다소 낮아지고 T-N, K, Ca, Na 함량이 높았으며 유기물과 유효인산(Av. P2O5) 함량은 다소 감소하였다. 이는 겨울철 사료작물 재배로 인해 논 토양의 화학적 특성이 개선될 수 있음을 보여준다. 출수기에 해담쌀을 제외한 3종의 조생종 벼에서는 간장, 수장, 수수, 엽색도가 대체로 벼 단작에 비해 사료작물-벼 재배답에서 높게 나타났다. 그러나 해담쌀은 간장과 엽색도가 차이가 없고, 수장이 다소 짧아졌지만 수수는 오히려 증가하는 양상을 보였다. 그리고, 수확기에 백미수량이 2모작 작부체계에서 다른 3종은 다소 감소하지만 해담쌀은 차이를 보이지 않았다. 그리고, 완전미의 비율은 사료작물-벼 2모작 재배 시 다소 높았으며, 특히 조평과 해담쌀에서 높았다. 백미의 단백질 함량은 벼 단작에 비해 사료작물-벼 재배에서 높았고, 아밀로스 함량은 벼 단작과 같거나 그보다 다소 낮았다. Toyo 식미치는 사료작물-벼 작부체계에서 대체로 감소하였으며, 호화온도는 모든 품종에서 작부체계별로는 통계적으로 유의미한 차이를 보이지 않았다. 그럼에도 불구하고, 해담쌀은 2모작 작부체계에서도 다른 품종에 비하여 호화온도가 낮으면서 Toyo 식미치값이 높아서, 식미도 가장 양호한 것으로 나타났다. 더욱이 그 생장은 작부체계에 따라 차이가 없으나 수수는 오히려 2모작 작부체계에서 증가하여 백미수량 감소가 없는 것으로 나타나, 해담쌀이 사료작물과 연계한 논 기반 작부체계에 최적의 품종으로 보인다.

To select rice (Oryza sativa L.) cultivars suitable for forage-rice double cropping system, the growth and grain quality of four early maturing rice cultivars (Joun, Jopyeong, Haedamssal, and Unkwang), and the chemical properties of soils were investigated under single- (fallow-rice) and forage-rice double-cropping systems in paddy fields in Miryang, southern Korea. The soil where two forage crops [Italian ryegrass (Lolium multiflorum Lam.) and oat (Avena sativa L.)] were cultivated during winter had a slightly lower pH; an increase in total nitrogen (T-N), K, Ca, and Na contents; and a slight decrease in organic matter and available P2O5 contents, compared with the soil fallowed during winter. This shows that the chemical properties of paddy soils can be improved by winter forage cropping. At the heading stage, the culm length, panicle length, panicle number, and leaf color of all cultivars, except for Haedamssal, were generally higher under double-cropping than under single-cropping. For Haedamssal, the culm length and leaf color did not differ between the cropping systems, but the panicle length was slightly shortened and its panicle number increased under double-cropping. After harvest, the yield of milled rice decreased for all cultivars except Haedamssal, but increased in Haedamssal under double-cropping. The head rice rate was slightly higher under double cropping, particularly in Jopyeong and Haedamssal, than under single-cropping. The protein content of milled rice under double cropping was higher and its amylose content was similar or slightly lower compared to those of rice under single cropping, resulting in decreased Toyo values for rice under double-cropping. The pasting temperature did not differ significantly between the cropping systems. However, Haedamssal had a low pasting temperature but a high Toyo value under double cropping, compared to the other three cultivars, suggesting that its palatability is relatively high. Furthermore, panicle number increased and milled rice yield did not decrease, even under double cropping. Therefore, Haedamssal seems to be the best cultivar for paddy-based double cropping with forage crops.

키워드

과제정보

본 연구는 농촌진흥청 어젠다사업(과제명:영남지역 IRG 연계 최적 논 작부체계 모형 개발 및 미질 특성 연구, 과제번호:PJ01380802)의 지원에 의해 이루어진 결과로 이에 감사드립니다.

참고문헌

  1. Ahn, E. K., E. G. Jeong, H. M. Park, K. H. Jung, U. J. Hyun, and J. H. Ku. 2019. Double cropping productivity of main whole-crop silage rice and winter feed crops in the central plains of Korea. Korean J. Crop Sci. 64 : 311-322.
  2. An, K. N., I. Lee, S. H. Shin, H. K. Min, O. D. Kwon, H. G. Park, H. R. Shin, and H. Y. Kim. 2017. Characterization of seasonal and annual variations in quality of rice brands distributed in Jeonnam province. Korean J. Crop Sci. 62 : 79-86. https://doi.org/10.7740/KJCS.2017.62.2.079
  3. Jeon, W. T., H. M. Park, J. B. Chung, K. D. Park, C. Y. Park, and W. H. Yang. 2005. Effect of reduced fertilization considering residual soil nutrients on rice yield and salt removal in greenhouse vegetables and rice cropping system. Korean J. Soil Sci. Fert. 38 : 85-91.
  4. Ju, J. I., Y. S. Kang, Y. G. Seong, H. J. Ji, and H. B. Lee. 2012. Study on high forage production in double cropping systems with barley and corn at paddy field in middle region. J. Korean Grassl. Forage Sci. 32 : 258-292.
  5. Juliano, B. O. 1985. Physicochemical properties of rice. American Association of Cereal Chemists, St. Paul, MN, USA. p.539.
  6. Kim, C. E., M. Y. Kang, and M. H. Kim. 2012. Comparison of properties affecting the palatability of 33 commercial brands of rice. Korean J. Crop Sci. 57 : 301-309. https://doi.org/10.7740/KJCS.2012.57.3.301
  7. Kim, S. S., J. H. Lee, J. K. Nam, W. Y. Choi, N. H. Back, M. G. Choi, H. K. Park, N. H. Back, H. K. Park, M. G. Choi, C. K. Kim, and K. Y. Jung. 2005. Proper harvesting time for improving the rice quality in Honam plain area. Korean J. Crop Sci. 50 : 62-68.
  8. Kwak, J., J. S. Lee, Y. J. Won, H. M. Park, K. S. Kwak, M. J. Kim, C. K. Lee, S. L. Kim, and M. R. Yoon. 2018. Effects of ripening temperature on starch structure and storage protein characteristics of early maturing rice varieties during grain filling. Korean J. Crop Sci. 63 : 77-85. https://doi.org/10.7740/KJCS.2018.63.2.077
  9. Lee, A. S., J. R. Kim, Y. S. Cho, Y. B. Kim, J. K. Ham, J. S. Jeong, J. G. Sa, and J. C. Shin. 2011. Analyzing the effect of climatic variables on growth and yield of rice in Chuncheon region. Korean J. Crop Sci. 56 : 99-106. https://doi.org/10.7740/KJCS.2011.56.2.099
  10. Lee, A. S., Y. S. Cho, I. J. Kim, J. K. Ham, and J. S. Jang. 2012. The quality and yield of early maturing rice varieties affected by cultural practices in Gangwon plain region. Korean J. Crop Sci. 57 : 233-237. https://doi.org/10.7740/KJCS.2012.57.3.233
  11. Lee, M. H. 2002. Rice quality and eating quality evaluation. Rural Development Administration, Suwon, Korea, pp.75-102.
  12. Lee, S., E. Son, S. Hong, S. Oh, J. Lee, J. Park, S. Woo, and C. Lee. 2016. Growth and yield under low solar radiation during the reproductive growth stages of rice plants. Korean J. Crop Sci. 61 : 87-91. https://doi.org/10.7740/KJCS.2016.61.2.087
  13. NAAS (National Academy of Agricultural Science). 2010. Fertilization standard on crops, NAAS, Suwon, Korea, pp.16-23.
  14. O'toole, J. C., R. T. Cruz, and T. N. Singh. 1979. Leaf rolling and transpiration. Plant Sci. Letters. 16 : 111-114. https://doi.org/10.1016/0304-4211(79)90015-4
  15. Oh, S. Y., K. H. Moon, E. Y. Song, S. H. Wi, and S. C. Koh. 2019. Photosynthesis, productivity, and mineral content of winter radishes by soil type on Jeju island. Hortic. Sci. Technol. 37 : 167-177. https://doi.org/10.7235/HORT.20190017
  16. Oh, S. Y., K. H. Moon, M. Shin, and S. C. Koh. 2020. Improving photosynthesis, productivity, and the mineral content of Chinese cabbage grown on very dark-brown volcanic ash soil. Hortic. Sci. Technol. 38 : 810-821. https://doi.org/10.7235/HORT.20200073
  17. Oh, S. Y., S. H. Oh, J. H. Seo, and J. Choi. 2021. Application of Italian ryegrass-rice double cropping systems to evaluate the physicochemical properties of soil and yield and quality of rice in paddy field in southern parts of Korea. J. Environ. Sci. Int. 30 : 559-671.
  18. Park, J., and H. Na. 2021. Changes in evapotranspiration and growth of gold mound, Japanese spurge, and ivy plants according to wind speed. Protected Hort. Plant Fac. 30 : 72-76.
  19. RDA (Rural Development Administration). 2008. The core technology of rice quality. Rural Development Administration, Suwon, Korea, p.34.
  20. Seo, J. H., C. D. Hwang, W. Y. Choi, H. K. Bae, S. Y. Kim, and S. H. Oh. 2019. Changes in growing period and productivity under double cropping of spring potato and summer cereals in paddy fields of southern Korea. Korean J. Crop Sci. 64 : 459-468.
  21. Seong, D. G., Y. G. Kim, Y. C. Cho, M. C. Kim, C. S. Kim, D. K. Kim, and J.S. Chung. 2017. The yield and quality of rice for early transplanting cultivation by cultural practices in Gyeongnam plain area. J. Agric. Life Sci. 51 : 19-27. https://doi.org/10.14397/jals.2017.51.3.19
  22. Song, T. H., T. I. Park, H. H. Park, S. K. Cho, Y. J. Oh, Y. W. Jang, J. H. Rho, K. G. Park, and H. J. Kang. 2014. Study of the use of winter forage crops, early maturing rice and summer oats in triple cropping systems at paddy field in southern region. J. Korean Soc. Grassl. Forage Sci. 34 : 227-233. https://doi.org/10.5333/KGFS.2014.34.4.227
  23. Yanai, J., C. K. Lee, T. Kaho, M. Iida, T. Matsui, M. Umeda, and T. Kosaki. 2001. Geostatistical analysis of soil chemical properties and rice yield in a paddy field and application to the analysis of yield-determining factors. Soil Sci. Plant Nut. 47 : 291-301. https://doi.org/10.1080/00380768.2001.10408393
  24. Yang, C. H., B. S. Kim, W. K. Park, D. B. Lee, C. H. Yoo, J. D. Kim, and K. Y. Jeong. 2007. Effect of barley straw application on soil properties, rice yield and plowable stress with plowing methods and irrigation rates in barley-rice double cropping system. Korean J. Soil Sci. Fert. 40 : 201-207.
  25. Yang, W., J. H. Park, J. S. Choi, S. Kang, and S. Kim. 2019. Yield characteristics and related agronomic traits affected by the transplanting date in early maturing varieties of rice in the central plain area of Korea. Korean J. Crop Sci. 64 : 165-175.