questions: asking about air layering of litchi 
 answers: th at a point 15cm or more below the tip end. scraping the exposed surfaces
to ensure complete removal of the phloem and cambium is desirable to retard
healing. about one to two handful of only slightly moistened sphagnum moss or
mud pudding with a mixture of well decomposed cowdung, soil and sand with a
ration of 1:1:1, respectively is placed around the stem to cover the cut surface.
then a piece of polyethylene sheet 15 to 20 cm wide is wrapped carefully around
the branch so that the sphagnum moss or mud is completely covered. both the
ends of the polyethylene sheet should be tied firmly so that the moss or mud
does not dry up.