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http://dx.doi.org/10.7740/kjcs.2019.64.4.336

Proper Growing Regions and Management Practices for Improving Production Stability in Direct-seeded Rice Cultivation  

Hwang, Woon-Ha (National Institute of Crop Science, RDA)
Jeong, Jae-Hyeok (National Institute of Crop Science, RDA)
Lee, Hyen-Seok (National Institute of Crop Science, RDA)
Yang, Seo-Yeong (National Institute of Crop Science, RDA)
Lee, Chung-Keun (National Institute of Crop Science, RDA)
Lim, Yeon-Hwa (National Institute of Crop Science, RDA)
Cho, Seung-Hyun (Jeollabuk-do Agricultural Research & Extension Services)
Min, Hyun-Kyung (Jeollanam-do Agricultural Research & Extension Services)
Kim, Sang-Kuk (Gyeongsangbuk-do Agricultural Research & Extension Services)
Nam, Jin-Woo (Gyeongsangnam-do Agricultural Research & Extension Services)
Choi, Yeo-Seul (Chungcheongbuk-do Agricultural Research & Extension Services)
Jo, Youn-Sang (Gangwon-do Agricultural Research & Extension Services)
Choi, Kyung-Jin (National Institute of Crop Science, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.64, no.4, 2019 , pp. 336-343 More about this Journal
Abstract
Wet direct-seeding (WDS) is an important method for improving the competitiveness of rice production in South Korea. We analyzed the optimum direct-seeding date to establish the rice standing rate in each area and selected suitable areas for WHS by considering the heading stage limit date for improving cultivation safety. As a result, the rice direct-seeding date to control weedy rice was around 5.15, 5.17-5.19, and after 5.20 in southern Youngnam, southern Honam, and the Middle Coast areas, respectively. However, the optimum seeding date for good standing rice was in late March in most areas. Analyzing by area, most of the southern plains and parts of the central inland plain are suitable for WHS. However, most parts of Gwangwon-do, and the northern parts of Chungbuk, Gyeongbuk, and Yeonghonam areas are not suitable for WHS, and should therefore avoid WHS.
Keywords
optimum cultivation area; temperature; weedy rice; wet hill-seeding;
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