抄録
The following results were obtained from the experiments to get high yield on sugar beet cultivation carried out at Furumaki Branch, Aomori Agricultural Experiment Station from 1962 to 1967. 1) The yield increased by transplanting cultivation was on or about 15% increase than that of direct sowing, though its effec iveness were subjected to change slightly by the yearly differences of climate. 2) The effectiveness of soil improvement by the heavy dose of phosphate (as applied by the shape of fused phosphate) was about 10 to 20% increase of the yield. The yield of sugar beet was closely correlated with the amount of exchangeable base and saturation degree of cation exchange capacity of the soil. 3) New varieties of "Tsukisappu", "E-5" and "Polyrave" gave higher yield about 10 to 15% than that of existing variety of "Donyu No.2". 4) By the combination of about mentioned facts, the yield of sugar beet increaser more than 55 tonnes per hectar and it was higher about 40% than that of direct sowing of "Donyu No. 2".
