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Effect of Expanded Rice Husk Medium on Rice Seedling for Machine Transplanting

Ko Jonghan    (Texas Tech University   ); Kim Doo Yeol    (Kangwon Agricultural Research and Extension Services   ); Sa Jong Gu    (Kangwon Agricultural Research and Extension Services   ); Lee Byun Woo    (Seoul National University   ); Lee Youn Su    (Kangwon National University  );
  • 초록

    Rice farmers can save labor and expenses by using expanded rice husk (ERH) as a seedling medium since ERH is lighter and cheaper than other commercial seedling media (CSM). This study was carried out to develop a method for rice seedling cultivation using ERH as a seedling medium. It is suggested that a mixture of $60\%$ of ERH and $40\%$ of a CSM could be used as a seedling medium; the planting densities would be 240g per tray for infant seedlings and 200 g for young seedlings; and nitrogen (N) would be applied at a rate of 1g per tray for infant seedlings prior to planting and 2g per tray for young seedlings with division. Great care should be taken to use $CO(NH_2)_2$ as an N-source fertilizer. These results would lay a foundation for the rice seedling cultivation with ERH as a medium.


  • 주제어

    Expanded rice husk (ERR) .   nitrogen application .   rice .   seeding density.  

  • 참고문헌 (11)

    1. KARES. 2000b Experiment and research report. KARES, Chuncheon, Korea. (In Korean) 
    2. Ko, Jonghan. 1998. Bioassay and analysis of allelopathic substances in rice (Oryza sativa L ) husks M. Agr. Thesis, Kangwon National univ (In Korean) 
    3. Yang , W. H., Y D Yun, M T. Song , M. H. Lee, M. S. Lim, and R K Park. 1989. Machine transplanting cultivation with infant seedling in rice plant. Kor. J. Crop Sci. 34(4) . 434-439. (In Korean) 
    4. Nam, M -S., Y -S. Kwon, K.-M. Kim, and J -K. Sohn 2002. Effects of sowing amount on seedling growth and grain yield of automatic seedling raising facility. Kor. J. Crop Sci. 47(6) : 448 -452. (In Korean) 
    5. Kangwon Agricultural Research and Extension Services (KARES). 2000a. Agricultural technology extension material. KARES, Chuncheon, Korea (In Korean) 
    6. Lee, J. H , Y. D. Yun, and H. O. Choi. 1977. Rice seedling establishment for machine transplanting 1. Effect of seed bed soils and soil pH on the physiological disorders of seedlings and their control. Kor J Crop Sci. 22(2) . 27-31. (In Korea) 
    7. Kim, S. -K and P -K. Jung. 1990. Effects of Diatomearth application on the nursery soil pH in the tray and on the growth of rice seedling J. Kor. Soc Soil Sci. Fert. 23(4) : 297-301.(In Korean) 
    8. Lee, E. W. 1997. Lowland rice cultivation. Hyangmoon company, Seoul, Korea. (In Korea) 
    9. Yang, W.-H., J.-H. Kim, J.-K Kim, and M. -H. Lee. 1998. Seedling growth and early growth of transplanted rice as affected by seedling rates and seedling nursery periods. RDA J. Crop Sci. 40(2) : 70-75. (In Korean) 
    10. Kim, S. S., M. G Choi, S. Y Lee, S. Y. Cho, and B. T. Jun. 1996 Nutrient absorption and endosperm consumption m rice seedling. Kor J. Crop Sci. 41(4) . 405-410. (In Korean) 
    11. Rural Development Administration (RDA) 1992. Infant seedling cultivation of machine transplanted rice. Crop Experimental Station, Rural Development Administration, Suwon, Korea. (In Korean) 

 저자의 다른 논문

  • Ko Jonghan (1)

    1. 2005 "Chemical and Physical Characteristics of Expanded Rice Husk Medium on Growth of Rice Seedling" Korean journal of crop science = 韓國作物學會誌 50 (2): 120~124    
  • Lee Byun Woo (1)

  • Lee Youn Su (1)

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