. Dry farming in western Canada . Fig. 95.—Cereal Test Plots at Beaver Lodg Northern Alberta. Grande Prairie District, material it carries but rather in its physical and biol- ogical effects on the soil. It not only adds sonic elements of plant food but it improves the structure of the soil, increases its moisture-holding power, lessens the tend- ency 1(> blow and, perhaps most important of all. in- creases the activity and the number of the desirable soil bacteria, that perform the important function of making plant food available. According to Hopkins* "a ton of fresh-mixed cattle an
. Dry farming in western Canada . Fig. 95.—Cereal Test Plots at Beaver Lodg Northern Alberta. Grande Prairie District, material it carries but rather in its physical and biol- ogical effects on the soil. It not only adds sonic elements of plant food but it improves the structure of the soil, increases its moisture-holding power, lessens the tend- ency 1(> blow and, perhaps most important of all. in- creases the activity and the number of the desirable soil bacteria, that perform the important function of making plant food available. According to Hopkins* "a ton of fresh-mixed cattle and horse manure contains about 500 pounds of dry matter, 10 pounds of nitrogen. 2 pounds of phosphorus, and 8 pounds of potassium. . By Leaching and fer- mentation the dry matter, nitrogen, and potassium are lost in approximately the same proportion, but the phos- phorus is lost only about half as rapidly, so that one ton *In "Soil Fertility and Permanent Agriculture.''
Size: 3483px × 1435px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectdryfarm, bookyear1921
