En banning agene, the announcement allowed the use of four other "improvers"—namely, chlorine dioxide, potassium bromate, ascorbic acid and an aeration process.
The use of bleachers and improvers in flour for ordinary consumption is not prohibited.
They are men who are capable of being taken on and earning improvers' wages from the very beginning.
There has been a slow but steady increase in the proportion of non-peat material used as soil improvers and growing media.
They could give the men an improver's wage, but many have quickly given them the proper wage.
Existing guidelines permit the use of peat based soil improvers on the defence estate.
Improvers of this sort have been used in this country for over 30 years.
Then there are artificial sweeteners; colouring matter; bleachers and improvers; solvents; nutritional supplements, and a few other things of less importance.