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<br />-16- <br /> <br />~ <br /> <br />An excellent study of the potential impact of weather modification <br /> <br />~ <br /> <br />on the Kansas agricultural economy was reported by L. Dean Bark. He <br /> <br />postulated an increase of 75 percent in daily rainfall, which has been <br /> <br />historically less than .1 inches; an increase of 30 percent of daily <br /> <br />rainfall between .10 and .5 inches; an increase of 10 percent for daily <br /> <br />rainfall between .5 and 1.00 inches; and, finally, a decrease of 10 <br /> <br />percent for any daily rainfall over one inch. Having produced crop <br /> <br />yield models from the actual historical data, he adjusted his climatol- <br /> <br />ogical rainfall series to fit his modification hypothesis and recal- <br /> <br />culated the production of wheat and sorghum for the state. He went <br /> <br />" <br /> <br />further. He calculated new optimal cropping strategies and associated <br /> <br />price changes under two different marketing configurations. <br /> <br />~ <br /> <br />Hi\lt18$t: 3,16 in. <br />Average: 2.22 in, <br />Lowest: 1 ,32 in, <br /> <br />2.83 in. <br />l,83in. <br />0,59 in, <br /> <br /> <br />3,14in. <br />2.09 in, <br />0,99 in. <br /> <br />2,54 in, <br />1 ,72 in, <br />0.98 in. <br /> <br />2.80 in, <br />1.74in. <br />0,38 in, <br /> <br />2,81 in, <br />1.62in, <br />0,39 in. <br /> <br />Average, highest, and lowest increases in annual <br />precipitation obtained by altering the precipitation <br />records to simulate clQud seeding in each crop <br />reporting district, 1901-1975, <br /> <br />Continuous Wheat = <br />Fallow Wheat <br />Grain Sorghum <br />Forage Sorghum <br /> <br />2,23 <br />= 4.58 <br />= 3.01 <br />= NA <br /> <br />CENTRAL EASTERN <br />Continuous Wheat = 2,23 Continuous Wheat = -.13 <br />Fallow Wheat = 4,58 Corn = NA <br />Grain Sorghum = 3.01 Soybeans = NA <br /> Grain Sorghum = ,71 <br /> Alfalfa = NA <br /> <br /> <br />WESTERN <br /> <br /> <br />Dryland crops studied in the three regions. .~ield changes calculated to result from the modified rainfall shown in bu'aCl'8, <br /> <br />...., LD,e.lr.O'H.........R.L V........ 11ft. <br />