. Bulletin. Agriculture; Agriculture -- Arizona. 214 Bulletin 37. at the farm, and the relative humidity determinations were made at the Phoenix Weather Bureau, two miles distant: Temperature and humid- ity, 1899. Jan. Feb. Mar. Apr. May. Jane July A ug. 1 Sept. Oct. Nov. 42 Dec. Mean mini- mum. 33 63 49 34. 41 48 51 64 78 69 67 51 33 Mean maxi- mum . 69 40 76 32 86 88 101 105 102 101 83 74 67 Mean rel. humidity 28 22 32 40 38 31 40 46 38 DURING 1899-190O. The winter irrigation this season was begun December 16th. Water was applied about as rapidly as the soil would absorb Winter irrigate
. Bulletin. Agriculture; Agriculture -- Arizona. 214 Bulletin 37. at the farm, and the relative humidity determinations were made at the Phoenix Weather Bureau, two miles distant: Temperature and humid- ity, 1899. Jan. Feb. Mar. Apr. May. Jane July A ug. 1 Sept. Oct. Nov. 42 Dec. Mean mini- mum. 33 63 49 34. 41 48 51 64 78 69 67 51 33 Mean maxi- mum . 69 40 76 32 86 88 101 105 102 101 83 74 67 Mean rel. humidity 28 22 32 40 38 31 40 46 38 DURING 1899-190O. The winter irrigation this season was begun December 16th. Water was applied about as rapidly as the soil would absorb Winter irrigated vineyard and orchard, July, tgoo. until three feet in depth had been given the orchard. The last irrigation of the winter occurred March 5th. As soon as the soil was dry enough, the orchard was plowed each way about a foot deep, harrowed thoroughly and left for the summer. After summer showers, a cultivator was run over the surface to break up the crust that formed. In this way an earth mulch six to eight inches deep was maintained. No water was applied for over eight months, during which period the rainfall was but two and one-half inches, divided among fiVe rains. As during the previous season, the trees remained in excel- lent condition throughout the summer. During May and June. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Arizona. Agricultural Experiment Station. Tucson : Agricultural Experiment Station, University of Arizona
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