10 Bulletin N0. 139.
tion. While this method of sterilizing has not come into gen- lis
eral use, those who have tried it pronounce it a complete sue- ·
. cess. After the bed is sterilized it is thoroughly worked to 21 A
depth of from 2 to 4 inches with hoes, rakes, disc plows or ha1·—
rows. .
It is a common practice to raise the level of the hed a little K
above the surrounding surface hy hedding; also to leave 12
inch valleys around the hed and have them eross the hed at
intervals of from G to 12 feet. This gives good surface drain- .
age. After the soil is thoroughly prepared, the seed is sown,
in the Burley district, at the rate of one teaspoonful to every
299 square feet; in the Dark district at the rate of one teaspoon-
ful to every C}()t) stpiare feet. There is no good reason for this
dill`eren