Issued by Israel in 1988, this 90 agorot stamp celebrates the nation’s pioneering achievements in agricultural irrigation technology. The artwork depicts a stylized tree and a precision drip irrigation system delivering water directly to the roots — a nod to one of Israel’s most important innovations in modern agriculture. Designed by Gideon Sagi, the stamp symbolizes efficient water management and sustainable farming practices that transformed arid lands into fertile fields. It is part of a broader series highlighting Israeli scientific and technological advancements.