논문 상세보기
pp.143-149
본 연구는 튤립의 지상부 생육과 구근생육에 적합한 토성과 식재깊이를 알아보고자 실시하였다. 토성에 따른 물리성을 조사한 결과, 고상, 액상, 기상은 사양토에서 각각 54.7%, 13.3%, 32.0%였고, 사양토가 식양토에 비해 기상이 10.6% 높았다. 공극율은 사양토에서 45.3%로 나타나 식양토에 비해 3% 더 높았다. pH는 사양토에서 6.1, 식양토에서 5.9로 나타나 큰 차이는 없었다. EC는 사양토에서 0.40 dS/m, 식양토에서 0.95 dS/m로 나타나 식양토에서 약간 더 높았고, 양이온치환용량의 경우에도 사양토의 3.01 me/100g보다 식양토에서 4.68 me/100g로 더 높았다. ‘Ile de France’와 ‘Rundy’ 품종은 사양토에서, ‘Kees Nelis’ 품종은 식양토에서 지상부 생육이 좋았다. 식양토에서는 전반적으로 식재깊이에 따른 지상부 생육에 큰 차이가 없었으나, 사양토에서는 4~8cm 깊이로 식재하였을 때 지상부 생육이 양호하였다. 구근 생육은 식양토에 비해 사양토에서 효과적이었으며, 식양토에서 4cm 깊이로, 사양토에서는 8cm 깊이로 식재하는 것이 구근 비대에 좋았다. 따라서, 튤립의 지상부와 구근의 생육을 위해서 사양토에 8cm 깊이로 식재하는 것이 가장 바람직하였다.
This study was conducted to examine the effects of soil texture and planting depth on shoot and bulb growth in Tulipa gesneriana ‘Ile de France’, ‘Kees Nelis’, and ‘Rundy’. In physical properties of clay loam and sandy loam, Solid, liquid, and gaseous phase of sandy loam were 54.7%, 13.3%, and 32.0%, respectively. Especially, gaseous phase of sandy loam was higher by 10.6% than that of clay loam. The porosity of sandy loam was 45.3%, and it was higher by 3% than that of clay loam. The pH of sandy loam and clay loam was 6.1 and 5.8, and EC of sandy loam was lower by 0.45 level than that of clay loam in chemical properties. The cation exchange capacity of clay loam was 4.68 me/100g, and it was higher in clay loam than in sandy loam. In ‘Ile de France’ and ‘Rundy’, shoot and flowering was better in sandy loam. But, shoot growth of ‘Kees Nelis’ was good in clay loam. In clay loam, shoot growth by planting depth was not different significantly. When bulbs were planted by 4~8 cm deep in sandy loam, shoot growth was better than the others. Bulb growth was more effective in sandy loam than in caly loam. The bulb planted by 4 cm deep in clay loam and 8 cm deep in sandy loam showed the good bulb growth in circumference and diameter, and weight of main bulb. Therefore, it was desirable that bulb of tulip was planted by 8 cm deep in sandy loam for shoot and bulb growth.
