Abstract
1. The culture methods of the sweet lupin were studied at Sumiyoshi Meadow and Experimental Field, Dept. Agr. Miyasaki University. 2. On soiling yield of the sweet lupin, 1) Optimum seeding period is respectively October 15 in autumn, April 15 in spring, and yield per 1/100 tan is 46.5 kg and 24.5 kg. 2) Optimum seeding amount is from 8 to l4 sho per tam. 3. On the yield of seeds, 1) Optimum seeding period is from middle to late of october. 2) Optimum seeding amount is from 5 to 7 sho per tan.