A note on Drip irrigation, which the JNF teaches at the schools
Drip irrigation is a type of micro-irrigation which has the potential to save water and nutrients by allowing water to drip slowly towards the roots of plants, either from above the soil surface or buried below the surface. The goal is to place water directly into the root zone and minimize evaporation. Mr Simcha Blass and his son in 1959 invented this revolutionary method whereby a plastic emitter was used in the drip irrigation. Instead of releasing water through tiny holes which were easily blocked by tiny particles, water was released through larger and longer passageways, controlling the velocity to slow the flow of water inside the plastic emitter. Mr Blass and Kibbutz Hatzerim created the company called Netafim and together developed and patented the first usable surface drip- irrigation emitter. Drip irrigation is used extensively throughout Africa including South Africa.