After examining the difference in the photosynthesis rate of corn according to the planting distance, the distance of 40 × 40 cm showed the lowest rate by 23 days after transplanting (May 31); however, there was no significant difference in the photosynthesis rate due to increased salt tolerance in the plant as time went by. As for the difference in growth features of a plant, the planting distance of 40×40cm showed a growing disorder due to the influence of salt by 23 days after transplantation (May 31); however, there was a desirable growth as time went by. For the difference in the salt content within a plant, the planting distance of 40×40cm tended to be higher than other planting distances, and the K⁺ content is much higher than other kinds of salt after examining the difference in salt absorption. As for the correlation between saline components within a plant, there was a significant negative correlation among K⁺, Ca²⁺, and Na⁺ while there was a significant positive correlation among Mg²⁺, Ca²⁺, and Na⁺. After examining the effectiveness of salt removal from soil according to corn cultivation, the planting distance of 30×30㎝ showed a remarkable decrease by 37 days, compared with 23 days, after transplantation in K⁺ by 28%, Ca²⁺ by 36.6 %, Mg²⁺ by 30.6 %, and Na⁺ by 22.9 %. And the salt content is higher in surface soil than in subsoil.

The PTDRT model as prediction techniques for desalinization in reclaimed tidelands was developed and verified whether it is applicable to reclaimed tidelands at the beginning stage. The changes of salt concentration during desalinization, the water requirements and period required for desalinization, were simulated according to soil properties and desalinization methods by repression analyses. The program was also designed to systematize input data and analysis data associated with desalinization, and to confirm the results by a graphic form. All input data and the results can be printed after the form of a typical report.

본 연구는 신간탁지 제염에 대한 기초자료를 얻고자 해남간탁지의 토양을 대상으로 제염효과를 분석하고 제염정도에 대한 보리의 생장반응을 조사하였다. 1. 공시토양은 점토함량이 16％이고 함량이 75％인 철사질양토이며 pH는 8.0이고 포화용액의 전기전도도는 59mS / cm인 염류알칼리토양이었다. 2. 토양포화용액의 전기전도도를 4mS / cm이하로 낮추기 위한 제염용수량은 5cm 깊이의 토양에서는 140mm였고, 20cm 깊이의 토양에서는 240mm였다. 3. 제염과정중 토양포화용액의 pH값은 8.0에서부터 8.3까지 높아졌다. 4. 보리종자의 출아률은 80mm이상의 제염용수량에서 76％이상으로 유의적인 변화가 없었다. 5. 보리의 초장은 파종후 1과와 2과에서는 120mm이상의 제염용수량에서, 그리고 파종후 3과와 4과에서는 160mm이상의 제염용수량에서 정상으로 신장하였다. 6. 보리 엽면적과 생체종 파종후 2과에는 120mm이상의 제염용수량에서, 파종후 3과에는 160mm이상의 제염용수량에서 염해의 발생이 없었다. 7. 이상의 결과로 보아 신간탁지에서 보리의 초기 생장기의 정상생육을 위한 토양포화용액의 전기전도도는 20cm 깊이의 토양에서 9mS / cm 이하가 되어야 할 것으로 판단된다.