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KMID : 1024520180270080641
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Journal of the Environmental Sciences
2018 Volume.27 No. 8 p.641 ~ p.650
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Effects of Paddy-Upland Rotation on Soil Characteristics and Crop Productivity in Rice Fields on Reclaimed Tidal land
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Oh Yang-Yeol
Kim Young-Joo
Lee Su-Hwan
Ryu Jin-Hee
Kim Sun
Lee Jung-Tae
Jun Jae-Beum
Kim Kil-Young
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Abstract
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Paddy-upland rotation system is one of the important cropping system for improving soil quality and crop productivity. we conducted to investigate the effect of paddy-upland rotation system on soil properties and crop productivity in reclaimed tidal land. The paddy-upland rotation could be effective to conserve soil water contents and prevent from salt damage when cultivating upland crops. The first two years of maize cultivation after rice cultivation could be effective to secure stable production. However, in case of soybean crop, the rotation effect might be lower than that of maize. In the first year, the yield of soybean was 214 kg/10a. In the second and third year, the yields of soybean decreased consecutively to 152, 123 kg/10a respectively. In this paper, it would be suggested that maize be cultivated for up to two years and soybean be cultivated for one year after rice crop grown in reclaimed tidal land. This study could be provide basic data of the physico-chemical properties applicable to paddy-upland rotation system at reclaimed tidal lands.
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KEYWORD
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Crop production, Paddy-upland rotation, Reclaimed tidal land, Soil, Soil salinity
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