questions: asking about the process of air layering in litchi. 
 answers: advised to select branches of 1-1.5 yr old of pencil thickness.remove the barks up to cambium layer around 3  inches long.put a mixture of dry cowdung ,soil and saw dust around the bark removed portion and wrap with polythene and tie the both ends.after 1.5 months rooting will take place.then cut the branch and plant in poly bag for 2 months.appropriate time for layering is from may and planting in main field in sept.