Record Details
Page 3
University of Arizona CONTENTdm Server Respository
| Field | Value |
|---|---|
| Title | Page 3 |
| Type | text |
| Format | image/jpeg |
| Identifier | su00047.jpg http://server16127.contentdm.oclc.org/u?/udallcoloradoAZU,4755 |
| Description | -3- from October-February would be 3510 p.p.m. and the sodium adsorption rate 9.6. In the summer it would be 1550 p.p.m with an s.a.r. of 5.6. Sodium in Gila Valley soils is high and the s.a.r. is more the governing factor than salinity index. A safe level is a sodium adsorption rate of 5 which would mean a salinity index of 1350 p. p. m. 4. Farmed acreage in the Mexicali Valley has been reduced from slightly more than 500,000 acres in 1955 to about 400,000 acres in 1962. A further... Epson Perfection 4870 Photo, 400 dpi, 24 bit, 1,111,636 bytes |
