Browsing Photographs - Irrigation Research Papers by Author "f6df14c3-96f1-430c-9dff-6d034bb43f38"
Author(s):Parshall, Ralph L. (Ralph Leroy), 1881-1959Date:1924-01-29Note on envelope further reads, "These stakes 2 x 4 - 6 feet long are driven in intervals of 6 ft. to a depth of about 8 feet. Weeds lodge and eventually fill in behind causing the flow to be confined in the center of ditch."
Author(s):Parshall, Ralph L. (Ralph Leroy), 1881-1959Date:1924-06-01Caption further reads, "The 16 rows to right of stake were planted with seed previously treated with "Uspulum," a chemical which energizes the sprouting. These same rows were also given a super-phosphate fertilizer at the ...
Author(s):Parshall, Ralph L. (Ralph Leroy), 1881-1959Date:1939-06-07Two men standing on opposite river bank, and another man bending over next to gage house. Rest of caption reads, "Conditions are poor and probably this structure will be removed. With F.C. McPherson, Costilla Estates Del ...