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Critical Date of Wet Direct Seeding of Rice after Barley Cropping at Honam Plain Area  

Back, Nam-Hyun (Honan Agricultural Research Institute, NICS, RDA)
Choi, Min-Kyu (Honan Agricultural Research Institute, NICS, RDA)
Park, Hong-Kyu (Honan Agricultural Research Institute, NICS, RDA)
Nam, Jeong-Kwon (Honan Agricultural Research Institute, NICS, RDA)
Ko, Jong-Cheol (Honan Agricultural Research Institute, NICS, RDA)
Kim, Sang-Su (Honan Agricultural Research Institute, NICS, RDA)
Kim, Bo-Kyeong (Honan Agricultural Research Institute, NICS, RDA)
Kim, Chung-Kon (Honan Agricultural Research Institute, NICS, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.52, no.2, 2007 , pp. 208-212 More about this Journal
Abstract
This experiment was carried out to investigate critical date for wet direct seeding of rice after barley harvest in Honam plain areas. Three early maturing cultivars of Samchonbyeo, Sangjubyeo and Obongbyeo and two medium maturing cultivars of Geumobyeo 1 and Juanbyo were tested under four different seeding dates. Seedling stand was higher with earlier seeding date with the range from 68 to 81% then later seeding date. Field lodging occured severely in Samchonbyeo, Sangjubyeo and Geumobyeo 1, while it was not apparent in Obongbyeo and Juanbyo. In consideration of threshold heading date, critical seeding date was June 20 in Samchonbyeo, Sangjubyeo and Obongbyeo of early maturing cultivars, and June 15 in Geumobyeo 1 and Juanbyo of medium maturing cultivars. Milled rice yield significantly decreased in seeding date of June 15 or late. These results implied that critical date of seeding for wet direct seeding after barley cropping in Honam plain area was June 10.
Keywords
rice; double cropping; wet direct seeding; seedling date; seedling stand; heading date; milled rice;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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