Pulling Resistance Force for Root Crop Harvesting

Abstract

As the fundamental studies on lifting type diggers, pulling resistance force for root crops harvesting was measured.
1) The 95 percent confidence interval of the maximum pulling resistance force (Ymax) was as follews:
Carrot, variety “Gosun-ninjin” 3.0-3.8kg for sandy soil
Radish, variety “Syogoin” (1) 6.3-7.7kg for sandy soil
Radish, variety “Syogoin” (2) 6.7-7.9kg for sandy soil
Radish, variety “Aokubi” 6.0-7.8kg for Daisen-Kuroboku
Turnip, variety “Shimofusa-kabu” (1) 7.1-8.3kg for sandy soil
Turnip, variety “Shimofusa-kabu” (2) 10.3-12.5kg for sandy soil
Turnip, variety “Shimofusa-kabu” (3) 7.0-8.8kg for sandy soil
2) The results of the analysis of variance of Ymax under the same field condition revealed that the effect of root lengths was highly significant.
3) All of these specimen could be pulled up without cuteing of stems and damage of roots.