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<br />30 <br /> <br />N <br />C':) <br />r'" <br />00 <br /> <br />TABLE 2 <br /> <br />;'...." .....'.'...,: <br />':;'.;,., -~.,::" ..".- <br /> <br />.~.; <br /> <br />J.n. RHOADES ET AL. <br /> <br />Amounts (mm) of Colorado and Alamo River waters used for irrigation in the "successive" crop <br />rotation <br /> <br />.....,. <br /> <br />~t::i~~:~>,~:;;~,:;'~~~.;~~~ii:~h: <br /> <br />Treat- 1982 Wheat <br />menta <br /> <br />1984 Wheat <br /> <br /> <br />. .:~ <br /> <br />..... <br /> <br />% Alamo R. <br /> <br />% Alamo R. Colo. R. Alamo R. Total <br /> <br />Colo. R. Alamo R. Total <br /> <br />.:;.".> .: :":':' <br /> <br />C <br />Ca <br />eA <br /> <br />548(3)' <br />417(5) <br />131(1) <br /> <br />548(3) <br />545(4) <br />556(4) <br /> <br />823(4) <br />431(2) <br />307(2) <br /> <br />o <br />396(2) <br />526(2) <br /> <br />823(4) <br />827(2) <br />833(3) <br /> <br />".....;.; <br /> <br />o <br />48 <br />63 <br /> <br />o <br />24 <br />76 <br /> <br />,.:. ,...... <br />./.-. '.-:." <br /> <br /> <br />o <br />129(1) <br />425(4) <br /> <br />.......-;. <br /> <br />1983 Sugar beets <br /> <br />1985 Sugar heets <br /> <br />:-!~:. <br /> <br />." .:," <br /> <br />.... ''',', <br /> <br />',-." <br /> <br />....... <br /> <br />. . <br />....... . <br />......... " <br />. ~ . <br /> <br />Colo. R. Alamo R. Total <br /> <br />% Alamo R. Colo. R. Alamo R. Total <br /> <br />% Alamo R. <br /> <br />. .',-:". <br /> <br />.. <br />....... <br />'. <br />.. <br />;. ... <br />.. . .'. <br /> <br />.'- ""'. <br />.- <br /> <br />C <br />Ca <br />eA <br /> <br />1268(5) <br />712(1 ) <br />448(3) <br /> <br />o <br />536(2) <br />800(3) <br /> <br />1268(5) <br />1249(2) <br />1248(4) <br /> <br />1400(4) <br />711 (3) <br />491(2 ) <br /> <br />o <br />663(3) <br />873(4) <br /> <br />1400(4) 0 <br />1374(5) 48 <br />1364(4) 64 <br /> <br />..... <br /> <br />o <br />43 <br />64 <br /> <br />: .;"' ," . .: _: ~ <br /> <br />..........;.. <br /> <br />1983 Cantaloupes <br /> <br />1985 Cantaloupes <br /> <br />Colo. R. Alamo R. Total <br /> <br />Colo. R. Alamo R. Total <br /> <br />C <br />Ca <br />eA <br /> <br />626(7) 0 <br />623(2) 0 <br />628(3) 0 <br /> <br />626(7) <br />623(2) <br />628(3) <br /> <br />360(6) 0 <br />354(4) 0 <br />346(4) 0 <br /> <br />360(6) <br />354(4) <br />346(4) <br /> <br />. .. '.., ~~'~." .:<.:. :<-;". ".: -t..~ : .:::..: ':~.'. :. <br />..:..... ;', <br /> <br />\.~..~:. ":'-';" <br /> <br />Complete rotation <br /> <br />~:'~ ~;., '.":-':, .::.::.::, ;.:-~:..~...:".::'::>:~~) <br />.....:.~.~.':.~:.;>.:..; . .'': .'.: .., .' <br />. '.'. <br />:.";:;".,.': <br /> <br />'. ...~.",:-:. <br /> <br />Colo. R. Alamo R. Total <br /> <br />% Alamo R. <br /> <br />e <br />Ca <br />eA <br /> <br />5025(12) <br />3248(9) <br />2351(7) <br /> <br />o <br />1724(5) <br />2624(3) <br /> <br />5025(12) 0 <br />4971(11) 35 <br />4975(10) 53 <br /> <br />BC;;;:: Colorado River water and solely for irrigation; Alamo River water used for irrigation in rei.' <br />atively smaller (Ca) and larger (eA) amounts. <br />bNumber in parentheses is standard error of mean. <br /> <br />:):\::::'.:'..,.:,::':..::. <br /> <br />.'~' <br /> <br />5 and 6, respectively_ No significant yield losses occurred for the wheat and <br />sugarbeet crops in either cycle of the "successive" rotation from substituting <br />drainage water for Colorado River water after seedling establishment (even in <br />the greater amount; 65-75%, treatment cA). The mean yield of cantaloupe <br />seed obtained in the cA treatment plots was about 10% lower than the control, <br />but the difference was not statistically significant. The yields of the fresh- <br />market melons (numbers of cartons of cantaloupes obtained by commercial <br />harvest operations) in 1985 were higher in the Ca and cA treatments than in <br />the C treatment, but they were not significantly different (see Table 5). Hence, <br /> <br />~ .';. .:;..~:)t:.'.:.;<..<\.,.;;. <br />.....,. :.:...;:.-;....... ';'.,''''' <br />;<~~/~:.. .... ..:.."\~-~...\..:.:.....:.. <br /> <br />I~~~~ <br /> <br />',,' <br /> <br />.:.... <br /> <br /> <br />',' <br /> <br />.:.' <br /> <br /> <br />'" ..... <br /> <br /> <br />. ~ .... t. , :. . ~ ---: .'. .............,..,...... ....:. ....~.~.;.~......:.:....,......~./..~..'.. '.,~~ .....:......'.. . ..:.......', .. <br />~,"'~ ..;::_:'._~.,:~<._:,::.:<r... _ . . '.' <br />'.. '?.' '.. '. ',:. ~~.: . .' "..', .... <br />'.';:?>". - <br />.' . ..~ ;-::~ <br /> <br />,.. <br /> <br />'> :," <br /> <br />;".: <br /> <br />.,......... <br /> <br />~~. <br /> <br />, ,~'..' . <br /> <br />.;. <br />;~.f <br /> <br />.-..,,'....,.. <br />, ~.....-~'.~ : <br />. ...~;t< <br /> <br />..'.... <br /> <br />..":.. '," <br /> <br />.~ ,":', ok' '" <br /> <br />.,..,. <br />