. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 12 BULLETIN 157, IT. S. DEPARTMENT OF AGRICULTURE. in the fall of 1909. Since this time the plats have been alternately fallowed and cropped to winter wheat, receiving uniform treatment in every case except in the depth of plowing. They were replowed or double disked each year in order to destroy weeds and volunteer grain. The depth of plowing on the different plats in the fall of 1908, 1910. and 1912 was as follows: 16A, subsoiled, 18 inches; 17A, subsoiled, 15 inches; 18A, plowed, 10 inches; 19A, plowed, 5 inches. Th
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 12 BULLETIN 157, IT. S. DEPARTMENT OF AGRICULTURE. in the fall of 1909. Since this time the plats have been alternately fallowed and cropped to winter wheat, receiving uniform treatment in every case except in the depth of plowing. They were replowed or double disked each year in order to destroy weeds and volunteer grain. The depth of plowing on the different plats in the fall of 1908, 1910. and 1912 was as follows: 16A, subsoiled, 18 inches; 17A, subsoiled, 15 inches; 18A, plowed, 10 inches; 19A, plowed, 5 inches. The depth of plowing on the different plats in the fall of 1909, 1911, and 1913 was as follows: 16C, subsoiled, 18 inches; 17C, subsoiled, 15 inches; 18C, plowed, 10 inches; 19C, plowed, 5 inches. Table IV.—Annual and average percentages of moisture for each of the first 6 feet of soil in plats plowed to different depths at the Nephi substation, samples taken in April, June, and September, for the years 1909 to 1912, inclusive. SUBSOILED 18 INCHES DEEP. Depth of sampling. Date of determination. 1909 1910 Average. 1 2 3 4 •5 6 Average. 16. 58 SUBSOILED 15 INCHES DEEP. lfoot 2 feet 3feet 4 feet 5 feet 6 feet Average 18. 20. 19. 19. 2018. 8019 60 19 15 19 30 18 35 20 00 | , 16. 70 |
Size: 1849px × 1352px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
