고랭지 성토지에서 제오라이트 처리가 감자생육과 토양특성 변화에 미치는 영향

This study was conducted to investigate the changes of potato growth and soil properties in highland mounding-soil. Experimental plot was designed with control, chemical improvement and zeolite+chemical improvement plots. Mounding-soil was low in organic matter and phosphate contents, and that soil texture was loamy sand soil. The growth and yield of potato were highest in the zeolite treatment plot. Yield of that increased by 3.7% than control plot. Increasing ratios of potato tubers decreased at 60∼70 days after planting. Increasing ratio of zeolite plot was higher than other treatment plots. After harvesting, the contents of soil organic matter increased by 12∼125%, and those of phosphate were by 29∼73% respectively. The manurial value of fused and superphosphate was higher than that of potassium chloride.