| OCR Text |
Show The Duty of Water in Cache Valley, Utah 13 sensitive to moisture than wheat. There was a gradual increase in the yield with an increase in water up to 30 inches, above which the yield slightly decreased. The yields were not greatly different for quantities of water between 15 and 45 acre- inches. Table VII. Yield of Oats with Various Quantities of Irrigation Water. Total of 78 Tests extending through 6 Years. Acre- inches Number of Trials Number of Years Yield per Acre Water Grain Straw Bushels Pounds None 6 6 50.37 1876 5 21 6 57.51 2077 10 18 6 60.18 2107 15 18 6 72.82 2563 20 6 6 74.40 2723 30 3 3 . 79.90 2774 45 6 6 76.68 3149 DIVERSITY OP CROPS It is well recognized by users of irrigation water that all crops do not require the maximum of irrigaation water at the same time. This is fortunate since by having a proper diversity 80 76 72 66 64- H> i. 60 O 0 56 1 « 03 48 1 -^ i 1 1^, T- r \ '[""" | .- -," ^ i | / ! Oc te / I S-' '"' i i B> 40 C 36 £ 32 d o 28 ° 24 to 20 >" .6 12 8 4 \ s 4. 6 12 16 20 2* 28 32 36 40 44 48 . 61 Inches of water applied: Fig. 8.- Yield of oats with various quantities of irrigation water. The diagram represents 6 years' work with a total of 78 tests. |
