The Growth Duration of Rice Cropping in Unified Korea by Analysis of Daily Mean Air Temperature Characteristics
2003
Choi, D.H. | Kim, B.K. | Shin, M.S. | Nam, J.K. | Choung, J.I. | Kim, K.Y. | Oh, M.K. | Ha, K.Y. | Ko, J.K. | Lee, J.K. (National Honam Agricultural Experiment Station, RDA Iksan, Republic of Korea)
This study was conducted to examine rice growth duration by analyzing agricultural climatic conditions at different altitudes in unified Korea. The climatic conditions of nine sites from Wunggi )(latitude 42N) to Jeju (latitude 31N) were examined in this study, The rice growth duration of various cropping patterns was determined by analyzing consecutive days when effective daily mean air temperature was suitable for rice growth from the first seeding date to the last maturing date. The rice growth duration in Wunggi located in North Korea was available 138 days for machine transplanting, 115 days for direct seeding on dry paddy cultivation, and 97 days for direct seeding on a flooded surface with cultivation after seeding. On the other hand, the rice growth duration in Kwangju (latitude 35N) located in South Korea was 195 days for machine transplanting, 180 days for direct seeding on dry paddy cultivation, and 170 days for direct seeding on a flooded surface cultivation after seeding.
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