Small investments in olive trees and the land on which they are planted not only allow for modest profits but enable Jews living in the diaspora to enact the mitzvot associated with farming in the holy land. Thus through the exclusive use of Jewish labor it is possible to observe the following biblical injunctions:
Orlah; refraining from use of fruit in the first three years of the tree’s growth
Trumot, Maasrot; tithes from annual produce for Kohanim, Levites and the Poor
Leket, Shikcha, Peah; portions of the annual harvest are allocated for the poor
Shmitta; leaving fields fallow one out of every seven years