1995 Volume 57 Issue 6 Pages 29-35
The purpose of this study is to develop an automatic field thinner of suger beets. The result of examination for a thinning method which is appropriate for automatic beet thinning was reported in this paper. The field test was conducted with various conditions of intra-row spacing and of thinning method. From the results of discussion on the thinning method, we found that intra-row spacing influenced to the beets growth in early stage but would not to the final suger yields, and the thinning method influenced to root weight and root peripheral lenght, but did not to suger yield. According to these results, we obtained the conclusion that the intra-row spacing after thinning of 20-25cm and “non-selective” thinning method would be appropriate for automatic thinner.
