tHE FIRST USE of a plastic film in agriculture is said to date from 1948
when Prof. E.M. Emmert had no money to buy a glasshouse
and covered a wooden structure with cellulose acetate film, which he
replaced with polyethylene film some time later [1]. The use of polymers
in agriculture on a significant scale started in the early 1950s when low
density polyethylene (LDPE) was used to replace paper for mulching
vegetables