Dryland salinity occurs due to the replacement of deep-rooted perennial vegetation with shallow-rooted annual species.Long fallows in a cropping rotation can also be a cause.ryland salinity occurs due to the replacement of deep-rooted perennial vegetation with shallow-rooted annual species.
A baseball cap, sometimes also called snapback hat when worn as a fashion item, is a type of soft cap with a rounded crown and a stiff peak projecting in front.
Another version of the baseball cap is a plastic mesh cap with a foam front imprinted with a company logo. This style of baseball cap is sometimes called a trucker cap or a gimme cap because it is given away for free as a promotional item.