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Effect of Soil Salinity and Culturing Condition on the Maintenance of Ridge and the Growth of Upland Crops in the Saemangeum Reclaimed Tidal Land  

Sohn, Yong-Man (Rural Research Institute. KARICO)
Song, Jae-Do (Rural Research Institute. KARICO)
Jeon, Geon-Yeong (Rural Research Institute. KARICO)
Kim, Doo-Hwan (Rural Research Institute. KARICO)
Park, Moo-Eon (Rural Research Institute. KARICO)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.43, no.5, 2010 , pp. 529-539 More about this Journal
Abstract
In order to evaluate the effect of soil salinity and culturing conditions including compost application and vinyl mulching on the maintenance of ridge and the growth of upland crops, three crops such as corn, soybean and sweet potato were experimented by using three or four cultivars of crops in the Saemangeum reclaimed tidal land. Average soil salinity before seeding was 2 dS $m^{-1}$, which was low enough for general upland crops to grow. However, high soil EC more than 16 dS $m^{-1}$ was observed in some parts of the experimented field. In the experiment, it was concluded that growth retardation and yield reduction of summer upland crops might be from severe erosion of ridge, soil compaction, flooding or wet soil condition and high salinity of some parts, and then these deteriorations were possibly improved for good crop growth and yield increase by compost application and vinyl mulching cultivation in the Saemangeum reclaimed tidal land.
Keywords
Reclaimed tidal land; Soil salinity; Sweet potato; Soybean; Corn; Rainfall acceptable capacity; Compost; Vinyl mulching;
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