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Agricultural duty of water
Natural work of water
Work of water in agriculture
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BULLETIN OF STATISTICS ON WORLD TRADE IN ENGINEERING PRODUCTS URI Stacks HD9705 A2 .... MONTHLY BULLETIN OF STATISTICS URI Stacks 330.904 UN3S V.1-6 1947-52 ...
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(United States Bureau of Soils, Bulletin No. 55, p. 79.) "There is another way in which the fertility ... (United States Farmers' Bulletin No. 257, p. 21.) ...
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Bulletin 257:. Apparently,. these small amounts of. fertilizers ... Soils Bulletin 22:. In. England. and Scotland it is. customary ...
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Geoderma : The soil production function: A brief history and its ...
Coffey, 1912 gn Coffey, A study of the soils of the United States, Bulletin 85, USDA Bureau of Soils, Washington, dc (1912) 114 pp. ...
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Method of producing gypsum plaster - Patent Review GB19510009620 ...
In Bulletin No. 33 of the Bureau of Soils of the United States Department of Agriculture, under title 11 "Calcium Sulphate in Aqueous Solutions" by Cameron ...
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