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<br />. <br /> <br />. <br /> <br />. <br /> <br />operation. There is little difference between the farm operations and <br />crops or cropping practices on the full-time and Dart-time farms. Live- <br />stock entorprises, however, are more predominant in the large-fUll-time <br />farms. <br /> <br />The irrigated crops and their relative importance from 1933 to <br />1950 inclusive, arc sho,m in Table 4. <br /> <br />The yields of irrigated crops in this projoct are ~ong the lowest <br />irrigated yields in Texas. Some of the reasons for the low irrigated yields <br />are not clear; others are self-evident. As previously indicated, crap pro- <br />duction is hindered by oil production, inseel~ity of tenl~e, and urban <br />influenceo, all of ,u1ich tend to explain ,Thy soil building and soil mainte- <br />nance practices have not boen more widely followed. <br /> <br />Other detrunents te erap preduction In this project are cotton <br />root rot, which roduces the life of alfalfa and frequently reduces cotton <br />yiolds, insects, noxious weeds, and frequent blackbird depredationo. <br /> <br />Short periods of high tomperatures with accompanying low relative <br />humidity are especially da.map,ing to most cuJ.tivatod crops in this project. <br />Frequont reference to the detrimental effects of this factor in reports of <br />the Experiment Substation indicates that it is a significant limiting <br />factor. ~ 121 <br /> <br />Table 7. - Average irrigated yields, Wichita Falls Project <br /> <br />j <br />I <br /> <br />Yields of irrigated crops average about 30 percent highor than <br />yiolds from ~Jland crops. Average irrigated yields from two sources are <br />given in Table 7. <br /> <br />Crap <br /> <br />Unit <br /> <br />Yield per acre <br />Substation report Average 1940-43 <br />11 Y <br /> <br />Cot.ton <br />Oats <br />Hhoat <br />Alfalfa <br />Grain sorghUlll <br /> <br />:lb. lint 210 228 <br />:bu. 30 40 <br />Ibu. 12 8.0 <br />:tons 2,0 3.0 <br />:bu. 26 20 <br /> <br />1/ Estimate by Lost.or Brooks, Supt. Toxas Agr. Expt. Substation No. 16. <br />~ Compiled from Wichita County ACA recerds and field interviews. <br /> <br />District No.2, the irrigation district, operates on an assessment <br />of benefit basis under which all lands benefiting are assessed according to <br /> <br />W McDowell, C. }I. "Irrigation Requirements of Cotton and Grain SorghUlll <br />in the Wiehita Valley of Texas". Texas Agr. Expt. Sta. Bun. 543, 1937. <br />121 Pickett, B. S., and Brooks, L. E, "Vegetable Adaptability in the <br />Hichita Valley". Toxas Agr. Expt. Sta. Bull. 610, 1942. <br /> <br />18 <br /> <br />, <br />