Evaporation losses in irrigation and water requirements of crops . oAvns about 2,000 acres in bearing citrus trees,offered to set aside block 58, containing 10 acres, for experiments inirrigation. Their offer AAas accepted, and it was on this site that thetank experiments at Riverside Avere carried on. The same companyalso provided temporary offices, a laboratory, and other equipmentfree of charge. The plan folloAved in determining the rate and amount of evapora-tion from soil surface Avas to remove from a field 300 to 1,300 poundsof soil, place it in a vessel as nearly as practicable in its n
Evaporation losses in irrigation and water requirements of crops . oAvns about 2,000 acres in bearing citrus trees,offered to set aside block 58, containing 10 acres, for experiments inirrigation. Their offer AAas accepted, and it was on this site that thetank experiments at Riverside Avere carried on. The same companyalso provided temporary offices, a laboratory, and other equipmentfree of charge. The plan folloAved in determining the rate and amount of evapora-tion from soil surface Avas to remove from a field 300 to 1,300 poundsof soil, place it in a vessel as nearly as practicable in its naturalposition, and by periodical Aveighings ascertain the loss of moisturefrom the poll. Iii seeking to secure natural conditions for the earth which Avas placedAvithin the tanks, typical soil and free exposure to sunshine, wind, andrain AAere easily obtained, but it AAas more difficult to maintain in theroil within the tanks the same temperature as that in adjacent soil. U. S. Dept. of Bui. 177, Office of Expt. Stations. Inig. and Drain, Invest. Plate Apparatus for Lifting and Weighing Tanks. U. S. Dept. of Agr., Bui. 177, Office of Expt. Stations. Irrig. and Drain. Invest. Plate II.
Size: 1313px × 1902px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashingtondcusgpo
