이랑폭과 피복재에 따른 도라지의 입모율 및 수량특성

Abstract

This study was carried out to investigate the seedling establishment and yield of direct-sown Platycodon grandiflorus seeds cultured by three ridge width, 0.4, 0.8, and 1.2 m and four mulching materials, rice straw, rice bran, black plastic film, and no mulching in upland. Seedling establishment rate (70%) was the highest in rice straw mulched plot of 500seeds/㎡ sowed and root yield after one year was also the highest in rice straw mulched treatment and followed by rice bran,no mulching, and black plastic film treatment. In this result, ridge width 120㎝ and rice straw mulching combined treatment was best for getting the highest seedling establishment ratio and seedling numbers per area. However, ridge width and mulching materials should be considered soil moisture content and weed population for saving labor cost.