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http://dx.doi.org/10.5532/KJAFM.2013.15.1.026

The Influence of Shifting Planting Date on Cereal Grains Production under the Projected Climate Change  

Kim, Dae-Jun (College of Life Science, Kyung Hee University)
Roh, Jae-Hwan (Rice Research Division, National Institute of Crop Science)
Kim, Jung-Gon (Korean Wheat & Barley Industry Development Institute)
Yun, Jin I. (College of Life Science, Kyung Hee University)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.15, no.1, 2013 , pp. 26-39 More about this Journal
Abstract
Yield reduction in major cereal grains seems unavoidable with the existing cropping systems under the projected climate change in Korea. Crop models were used to predict the effects of planting date shift on grain yields of rice, winter barley and soybeans at 64 agroclimatic zones in Korea. The shift of planting date by 7, 14, and 21 days before and after the recommended planting dates were incorporated in DSSAT experiment files to simulate growth, development and grain yields of major cereal crops. These included 3 rice cultivars representing early-, medium- and late-maturity groups, 1 winter barley and 1 soybean cultivars. Partial mitigation in yield reduction was found with earlier planting in the early maturing rice cultivar and with delayed planting in the late maturing rice cultivar under the RCP8.5 projected climate change in Korea. Additional yield increase in winter barley was expected by earlier planting treatments. Soybean showed a positive effect on grain yield with earlier planting. However, the rate was much lower than the case with winter barley and delayed planting caused yield reduction.
Keywords
RCP 8.5; Planting date; DSSAT; Rice; Barley; Soybean; Climate change;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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