Abstract
The objective of this research is to investigate the effect of a new cultivation method for saving thinning-labor and the growth of Japanese radish compared with the conventional cultivation method. The new cultivation method is to sow 3 seeds in 4cm, 5cm, and 6cm distances respectively, and to thin the radish seedlings only once. The conventional cultivation method is to sow 4 seeds at a time, and to thin the seedlings twice.
The field experiments have been done twice in 2002, and the main results were as follows.
1) To compare with the conventional cultivation method, the new cultivation method could save about 75% of thinning-labor.
2) The growth of radish had not significant differences between the new cultivation method and the conventional cultivation method.
3) About the average of length, weight and other data of harvested radish, almost all had not significant differences at t-test of 5% significant level between the new cultivation method and the conventional one.
4) The conclusion of this research is that the new cultivation method is an available way to save thinning-labor without negative effects for Japanese radish production.
