Forceing growth on back bulbs?

[Don Perusse]

I don't know if this is the proper forum but thought I would start here. I don't like to keep orchids in anything larger than a 6" pot because of space. I have several with 10 or more growths and need to divide saving 3/4 good bulbs in the lead. Is there a way, a procedure, a paste, or other way of forcing back bulbs to produce growth. I have planted some and have put some in a bucket w/little spag. to see if they sprout. Sometimes they do sometimes they don't. I was trying to find out if anyone know of a procedure to insure the promotion of growth of these back bulbs. Thanks.