An experiment concerning with the over yearing rate of Allium bakeri REGEL in winter was conducted on Han-river riverside for the utilization of sandy barren land of about 32 million ha. in Korea.
This results were summarized as follows;
1) For the rate of over yearing in respect to the depth of sowing, 14㎝ depth seemed to be most effective than any other treatment (5㎝, 8㎝ and 11㎝ depth of sowing). 11㎝ depth of sowing showed, however, better growth on the weight of bulb in harvest.
2) The clay mulching (1-2㎝) increased the rate of over yearing and weight of bulbs, significantly, compared with polyethylene film mulching, gravel (1-2㎝ diameter) mulching, strawbag mulching and control.
3) It was concluded that sandy barren lands of riverside in Korea was possible to utilize by an economical growing of Allium bakeri REGEL etc.
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