
잡초성벼 경종적 방제 후 남부지역 벼 무논점파재배 파종적기
Optimum Seeding Date of Wet Hill Seeding on Puddled Soil after Weedy Rice Control in Southern Plain Area of South Korea
- 황운하(Woon-Ha Hwang) 정재혁(Jae-Hyeok Jeong) 이현석(Hyen-Seok Lee) 양서영(Seo-Yeong Yang) 이충근(Chung-Keun Lee) 조승현(Seung-Hyun Cho) 민현경(Hyun-Kyung Min) 김상국(Sang-Kuk Kim) 한은희(Eun-Hui Han) 최경진(Kyung-Jin Choi)
- 한국작물학회
- 한국작물학회지
- 제63권 제4호
- 등재여부 : KCI등재
- 2018.12
- 273 - 281 (9 pages)
Wet hill seeding (WHS) is one of the more famous labor and money saving methods technology used for rice cultivation. In WHS, rice standing percentage and weedy rice occurrence are the most important factors considered to secure a rice yield. We investigated the optimum seeding date of WHS in the Southern Plain area of South Korea. Weedy rice needed two weeks at 15°C to show over 80% emergence. Germinated rice seed grown at 20°C needed over for 10 days to achieve a shoot length over 3 cm. In field cultivation, the mean temperature for ten days after seeding showed a highly positive correlation with rice standing rate, spikelet number per square meter and yield index that favorably compared to machine transplanting. With these data, we suggest that the optimum seeding date of WHS that can secure over 98% of yield index of machine transplanting in Southern part of Korea is May. 21~Jun. 5 in Honam and May. 16~Jun. 5 in Yeongnam area.
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