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.' Effect of Limited Irrig.on on Yield of Sugar Beets Page 7 . .. _YlELD8[(TS Although the test-demonstration was not desiqned to measure the exact amount of water available for plant use, an estimate of water available does provide the basis for comparative evaluation. The data summarized in Table IV records the qreatest yield per acre inch of water was secured under the three irrigation. moderate stress environment. However, substantial yield increases were experienced under the full irrigation environment. Yield increases that could have been necessary to meet production expenses. "GlMI1 'EIlC[HTAG[YIUDOfCl'MES OUt TO REDUCTION IN IItRIGATlOH WATER k.u TMnn.d 67-15 '''' D ~ ;0 ---YJELOSOOA,R ! eo ~ ! d" ~ ~ i.. 50 ~ \ \ \ \ \ \ \ \.0.11 " " full Modult. He.".)! Stress St~S1 "'1 IRRIGATI(},'jTR[ATlI[HT .............................................. TABLE IV SUGAR BEET IRRIGATION WATER STRESS TEST-DEMONSTRATION PROJECT Yield of Beets Per Acre Inch Available Water Water Approx. A/In. of Yield Beets Per !~~atmen~ Available Water A/In. of Water Dryland 18.62 669 lbs. Heavy Stress 28.13 l,0131bs. l,6871bs. Moderate Stress 30.72 l,0651bs. 1,6341bs. Full .Irrigation 39.45 946 lbs. 525 lbs. .............................................4 ECONOMIC RESULTS Increase Yield Per A/In. Added Water It is difficult at production costs. by the death, just best to provide an accurate basis for the evaluation 'of The cost estimates for this project were further complicated prior to harvest, of the farmer cooperator. Golden Plains Are~ Extension Agent, Emery G. Anderson, did develop an estimate of production cost for sugar beets based on the actual tosts experienced by 19 other area beet producers. (See Table V) These figure; reflect a variable production cost of $355.01 and a fixed cost of $249.32 ,for a total production expense of $604.33. The cost of dryland production was estimated to be $492.00.