The Spray Irrigation (Definition) Order 1992

Interpretation

2.  In this Order—

“growth regulators” means substances used for accelerating or retarding the normal growth of plants;

“moveable” means, in relation to any apparatus, mounted on wheels or portable and in either case not connected by pipe to an inland water or to water contained in any underground strata;

“nutrients” means substances (other than water) that are necessary for the healthy growth of plants;

“quality additives” means substances (other than water, growth regulators or nutrients) used for improving or maintaining the yield or quality of plants or for improving their quality when harvested and during any period of conservation and applied to the growing plants or to the soil in which they grow.