00000nam 2200000za 4500 9.826610 CaOODSP 20250303104653 cr ||||||||||| 161028s1933 oncao|| o f000 0 eng d CaOODSP eng n-cn--- A12-2/124-1933E-PDF Shutt, Frank T. (Frank Thomas), 1859-1940. Peat, muck and mud deposits [electronic resource] : their nature, composition and agricultural uses / by Frank T. Shutt and L.E. Wright. Ottawa : Department of Agriculture : Division of Chemistry, Dominion Experimental Farms Branch. 1933. 27 p. : ill. Bulletin, New series ; no. 133 Cover title. Historical publication digitized by the Internet Archive in 2013 [from the collection of Agriculture and Agri-Food Canada]. Issued also in French under title : Tourbes et vases : leur nature, leur composition et leur emploi en agriculture. "Among naturally-occurring materials of value for the improvement of soils may be numbered peat, swamp or black muck, river, pond, mussel and marsh muds and similar deposits from both fresh and salt water. Many of these possess a distinct manurial value and applied liberally can frequently be used to advantage in the upkeep of fertility. They are not, however, to be regarded as in the same class as 'fertilizers'—materials furnishing notable and well marked percentages of available nitrogen, phosphoric acid and potash—but rather as amendments, furnishing, chiefly, semi-decomposed vegetable (organic) matter which subsequently increases the humus content of the soil, or carbonate of lime, as the case may be, with small percentages of nitrogen and mineral plant food matter for the physical and chemical improvement of the soil"--p. [3]. gccst Soil Wright, L. E. Canada. Department of Agriculture. Dominion Experimental Farms and Stations (Canada) Tourbes et vases : (CaOODSP)9.905868 Bulletin (Canada. Department of Agriculture) 124 (CaOODSP)9.812039 PDF 3.18 MB https://publications.gc.ca/collections/collection_2016/aac-aafc/agrhist/A12-2-124-1933-eng.pdf