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Show The Duty of Water in Cache Valley, Utah 9 380 ~~ 1 360 340 320 \ \ 300 P / , ', i y = 0 QtC > es 2S0 8 i: \ 1 260 £ )) • » i- \ 240 / ; i i v 220 - s / ^ V ^_ ', I i \ 2.00 180 7D i\ 160 >- ' 140 ^ i [• 120 / ", \ 100 i < / \ . 80 i \ \ V s 60 * S 40 £ 0 Inc bej 5 0 ' V ' at* : r Qpplie( ;- 4 12. 20 £ 8 36 44 52. 60 && 76 84 92 Fig. 4.-- Yield of potatoes with various quantities of irrigation water. The diagram represents 14 years' work with a total of 216 tests. Table IV. Yield of Alfalfa with Various Quantities of Irrigation Water. Total of 176 Trials extending through 1U Years. Acre- inches Number of Number of Yield in Tons Water Trials ' Years per Acre None 14 11 2.655 5 36 7 3.233 10 28 11 3.923 12% 3 3 3.783 15 30 14 4.294 20 12 12 4.165 22% 1 1 4.090 25 14 12 4.544 30 10 10 4.515 32% 2 2 4.841 35 3 3 4.198 37% 1 1 4.400 40 4 4 3.740 45 2 2 4.613 50 8 8 5.355 52% 2 2 3.718 60 1 1 4.691 65 1 1 3.399 67% 1 1 4.230 75 1 1 5.007 90 1 1 4.520 97% 1 1 3.768 |
