HC Deb 22 October 1941 vol 374 c1797W
Captain Plugge

asked the Minister of Agriculture whether, in view of the fact that seaweed is a source of potash as well as of other salts and humus valuable on certain kinds of land, his Department is encouraging its use as a manure?

Mr. T. Williams

Yes, Sir, seaweed is commonly used as an organic fertiliser in various localities round our coast and its value as a source of potash is stressed in my Department's Growmore Leaflet No. 3—"Making the Most of Potash Supplies."