Nutritional Study on Freesia

概要

論文の詳細を見る
A study of the effects of N, P, and K levels in factorial combinations on the growth, flowering and corm yields of freesia, variety White Mary was made in sand culture during 1962-1963. The results obtained were as follows: 1. Increasing N supply with P and K resulted in increased height of plants, number of florets and corm and cormel yields of freesia. 2. Effects of P with N on growth, flowering and corm yields were apparent in this study, but not with-N plots. 3. Plant response to K was not significant in this study in contrast to Penningsfeld's results in Germany. 4. Favorable interactions between N and P occurred to influence the plant growth, flowering and yield of conns. 5. The visual symptoms caused by deficiencies of major nutrients were similar to those reported by Penningsfeld. 6. Under these experimental conditions, the best growth and flowering of freesia together with the highest yield of corms was obtained in plots of 100-200ppm N: 50ppm P: 60ppm K supply.
千葉大学の論文
1964-12-31