Journal of Crop Science and Biotechnology
- 제11권2호
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- Pages.141-150
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- 2008
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- 1975-9479(pISSN)
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- 2005-8276(eISSN)
Recommendation of Nitrogen Topdressing Rates at Panicle Initiation Stage of Rice Using Canopy Reflectance
- Nguyen, Hung T. (Department of Plant Science, College of Agriculture and Life Science, Seoul National University) ;
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Lee, Kyu-Jong
(Department of Plant Science, College of Agriculture and Life Science, Seoul National University) ;
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Lee, Byun-Woo
(Department of Plant Science, College of Agriculture and Life Science, Seoul National University)
- 발행 : 2008.06.30
초록
The response of grain yield(GY) and milled-rice protein content(PC) to crop growth status and nitrogen(N) rates at panicle initiation stage(PIS) is critical information for prescribing topdress N rate at PIS(Npi) for target GY and PC. Three split-split-plot experiments including various N treatments and rice cultivars were conducted in Experimental Farm, Seoul National University, Korea in 2003-2005. Shoot N density(SND, g N in shoot