Effect of Forms and Levels of Nitrogen Fertilizer on Plant Growth and Essential Oil Content of Agastache rugosa
2000
Ohk Hyun-Choong | Song Ji-Sook Seoul National University, Suwon (Korea Republic)
This study was carried out to investigate the effect of forms and levels of nitrogen fertilizer on plant growth and essential oil production of Agastache rugosa. Calcium nitrate had more influenced on length and width of leaves and lateral branch length than did urea. When nitrogen fertilizer level was increased from 12 kgN/10a to 24 kgN/10a, plant growth was stimulated and dry matter of leaf and inflorescence were increased. Top dry matter of plant with calcium nitrate treatment (38.4g) was heavier than that of urea treatment (32.8g). Interactions among accession and nitrogen form and nitrogen rate were not significantly different for top dry matter. The forms and rate of nitrogen fertilizer did not affect estragole content.
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