Growth Response of Maize on Soil Salinity in Greehouse Located in the Saemangeum Reclaimed Land.

The objective of this study was to evaluate of growth response of maize on soil salinity in polyvinyl greenhouse located in the Saemangeum reclaimed land. Fertigated cultivation with sprinkler desalinization system was set up to raise the maize from March 3 to July 15 in 2014. Plant height was 225cm in the range of soil salinity from 0.1% to 0.2%, 180cm from 0.2% to 0.3%, less than 146cm in the ranges over 0.3%. Plant height was decreased 20% as the soil salinity increased from 0.15% to 0.25% and decreased 19% as the salinity increased from 0.25% to 0.35, respectively. Corn yield per stalk was 218g in the range of soil salinity from 0.1% to 0.2%, 156g from 0.2% to 0.3%. Corn yield was decreased 28% as the soil salinity increased from 0.15% to 0.25% and decreased 16% as the salinity increased from 0.25% to 0.35, respectively. Plant heights were increased as 182cm, 189cm, 205cm, and 204cm as the nitrogen input(kg/10a) increased as 10, 20, 30, and 40. Corn yield per stalk increased as 132g, 167g, 189g, and 247g at the same nitrogen input also.