chong

Depending on the Asian Pear variety, I don't know that the Keiffer Pear tree will be much help, since the Kieffer is a late blooming tree. It would probably be helpful for Seigyoku because it's a late blooming variety also. But if you Asian pear is the more popular variety, you'll need to have an early or regular blooming variety. The trees do not have to be right next to each other, though it would be best if they were. In close proximity would work, just as it would if you had a neighbor that had a Bartlett Pear next door.

Kieffer is a cross between a European and Asian Pear, reportedly a Chinese pear variety. Judging from it's shape, most probably it's from Ya-Li.