- Volume 46 Issue 6
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Response of Millet and Sorghum to Water Stress in Converted Poorly Drained Paddy Soil
- Jung, Ki-Yuol (Coarse Cereal Crop Research Division, NICS, RDA) ;
- Yun, Eul-Soo (Coarse Cereal Crop Research Division, NICS, RDA) ;
- Park, Chang-Young (Coarse Cereal Crop Research Division, NICS, RDA) ;
- Hwang, Jae-Bok (Coarse Cereal Crop Research Division, NICS, RDA) ;
- Choi, Young-Dae (Coarse Cereal Crop Research Division, NICS, RDA) ;
- Oh, In-Seok (Coarse Cereal Crop Research Division, NICS, RDA)
- Received : 2013.10.26
- Accepted : 2013.11.06
- Published : 2013.12.31
Millet and sorghum are major dryland cereal crops, however their growth and productivity is limited by soil water stress with varying intensity. The major objective of this study was to evaluate water stress of millet and sorghum yield under drainage classes of poorly drained soil and to test the effect of the installed pipe drainage in poorly drained paddy soil to minimize crop stress. The research was carried out in poorly drained paddy fields located at alluvial slopping area resulting in non-uniform water content distribution by the inflow of ground water from the upper part of the field. Stress Day Index (SDI) was determined from a stress day factor (SD) and a crop susceptibility factor (CS). SD is a degree of measurement by calculating the daily sum of excess water in the profile above 30cm soil depth (
Sorghum;Millet;Water stress;Crop susceptibility;Stress day index
Grant : Cooperative Research Program for Agriculture Science & Technology Development
Supported by : Rural Development Administration
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