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Effect of Soil Salinity Variation on the Growth of Barley, Rye and Oat Seeded at the Newly Reclaimed Tidal Lands in Korea  

Sohn, Yong-Man (Rural Research Institute. KARICO)
Jeon, Geon-Yeong (Rural Research Institute. KARICO)
Song, Jae-Do (Rural Research Institute. KARICO)
Lee, Jae-Hwang (Rural Research Institute. KARICO)
Park, Moo-Eon (Rural Research Institute. KARICO)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.42, no.6, 2009 , pp. 415-422 More about this Journal
Abstract
Effect of soil salinity variation on the growth of barley, rye and oat was studied at the Hwaong, Iweon and Yeongsangang reclaimed lands in the western seaside of Korea. Soil salinity variation and soil EC were very high for crops to be killed or to be brought serious growth retardation during the growing season at the Iweon and Hwaong reclaimed lands, but fully low not to bring growth retardation at the Yeongsangang reclaimed land. Relation between soil salinity and crop growth and yield was well expressed as logarithmic function. Surface soil EC to reach at 50% of seed-emergence reduction was estimated $6.5dS\;m^{-1}$ for barley and $5.1dS\;m^{-1}$ for rye and oat by logarithmic function. In addition, surface soil EC to reach at 50% of grain yield reduction to the best growth in the experimental site was estimated $5.6dS\;m^{-1}$ for barley, $5.8dS\;m^{-1}$ for rye and $5.7dS\;m^{-1}$ for oat, while soil EC to reach at 50% of dry matter reduction was estimated $5.5dS\;m^{-1}$ for barley, $6.2dS\;m^{-1}$ for rye and $5.8dS\;m^{-1}$ for oat by logarithmic function. Grain yield of barley, rye and oat was 395, 164 and $325kg\;10a^{-1}$ in the Yeongsangang reclaimed lands naturally controlled below condition of $6dS\;m^{-1}$ of soil EC, but no harvest was obtained in the Hwaong and Iweon reclaimed land because of high salinity more than $15dS\;m^{-1}$ in maximum soil EC during growing period. Consequentially, it was concluded that soil salinity must be controlled below $6dS\;m^{-1}$ for good growth and high yield of winter barley, rye and oat in the reclaimed land in Korea.
Keywords
Reclaimed tidal land; Soil salinity; Barley; Rye; Oat;
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Times Cited By KSCI : 1  (Citation Analysis)
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