<br />-- - " - -- -.- --.. - ~ '-' . -"""""J
<br /> .
<br /> ~
<br /> ',- .,
<br /> 1110 -. ..I
<br /> . ,
<br /> . '. . \,>., ).. I "';'if
<br />, , f , . i
<br /> .
<br /> 'r \ . . ." J,\\ .1
<br /> .
<br /> t , ~ .~
<br /> I; . ... .",,"
<br /> \ . I \ \ "i \ I
<br />" , , ; "
<br />, , ) . , , .1 I ,
<br /> , . ...-.... ,
<br /> I, I .
<br /> , , ~
<br /> , , .,
<br /> , , .(. . .
<br /> ,
<br />
<br />.------.. .
<br />'" 7~r \~ ,~ .
<br />, '~'r;'_". I ~. 111"
<br />" ,~.. ~ ""'~ ~~....~"'t'" ~ -.- ..
<br />" ,,:- ,.. ":"~, ,. ...._;~ -: ." r_ --; ,-,
<br />-roo,..... :.-..~,) ',"'( _
<br />;""';:: "'~."" -,:;;:-' .~.. .
<br />-:.,.....' - . <"V'.- . . ,
<br />1 J" - ...... "l".. ;:,:......~:-':.., , \1
<br />~"', I ...;. , ".,. ..:; ...~ .... ~., j
<br />>," . l ~ c"-C;_.... .. ....
<br />) J. , :'\ .., <, ,- ~.
<br />. 1',\" .' :f;- \._~....( _' ."/<
<br />. ,~.... ~ r"" ""~'''''', \.."""'.::; "./\'~'
<br />..:.....-...-r__....o....n.\l...j,..i.A.~ L.d'_~Q,..",:......---..J,,_....b...'t;:'"~,;.,...~
<br />
<br />I-~
<br />I
<br />I
<br />
<br />/'
<br />
<br />""
<br />I
<br />I
<br />
<br />:::--..
<br />
<br />.....
<br />
<br />.~
<br />
<br />..
<br />"
<br />
<br />"
<br />
<br />,
<br />.
<br />....
<br />
<br />.' ')
<br />l,'~ .::.... \..
<br />[;.,1 ;- .~ !:_;~,~\<;:-~~~"T;.,
<br />-' l~l.',."
<br />'. .1. . "., \'""
<br />.......___-r.c, . iJ.~
<br />, "'j-"
<br />"""'x. I: .\lf~.:..-.....
<br />... Y'/ ~ ,-
<br />J .,
<br />...:~-
<br />
<br />",:,.
<br />
<br />"
<br />
<br />.. ';'..\'.
<br />". ,...:.'.' ,;1.
<br />.... , \~:.,:~...:~
<br />-," ":;J ..'"
<br />" '- ',,::;.
<br />'. "
<br />\" ( .....
<br />: "~ ......,.
<br />"','.
<br />.\
<br />..~'1"
<br />
<br />.'
<br />
<br />,.
<br />
<br />".'~- ,
<br />~:.. .. '..
<br />
<br />.'
<br />.
<br />,
<br />,
<br />
<br />\.
<br />
<br />A.,.,,~
<br />...
<br />. ~r
<br />
<br />.- -' "
<br />~. ,
<br />.
<br />
<br />J
<br />
<br />,
<br />
<br /><
<br />
<br />J'
<br />Y
<br />.j
<br />
<br />'-
<br />
<br />.
<br />
<br />~
<br />
<br />SE:6Z
<br />
<br />A hardcore 1001, at
<br />
<br />""
<br />,I J
<br />
<br />"
<br />
<br />,
<br />
<br />\ ,
<br />
<br />\
<br />
<br />ri"
<br />t/~
<br />
<br />:. "':.
<br />. .
<br />
<br />\ ~~-'.{>~,.
<br />
<br />"
<br />
<br />,.
<br />
<br />. .
<br />..
<br />',~ -"f
<br />, I
<br />.
<br />.
<br />
<br />.:::
<br />
<br />TIIRlRTI(@A\TITlOJ)M
<br />IE IFIFTI (c ITlERHG 1[
<br />
<br />In thc April. 1969, i"tlc Ilf 1I{I{IGATlO:\ AGE.
<br />Ihcrc appcarcd an Olrticlc on irrig;lIion cfficicncy
<br />b;l<;.cd on a p;lper gi\cn hy .\\aurice:-':. Llngley. who
<br />al Ihat limc W;1<o chicf llf thc di\'i"ion of walcr ami
<br />land operation.... Wa..hing:wn. D. c.. ;)nd D;I\-id C.
<br />~. Rohh, hydraulic cnginecr, U. S. Burcau of
<br />J{ec!alll;uion, DCllvcr. Colo.
<br />IrJig<llion Ag...
<br />
<br />;.
<br />
<br />A
<br />\1k
<br />
<br />j'-
<br />.'
<br />
<br />.,
<br />
<br />l
<br />
<br />'~
<br />
<br />~~(, <~, :'~'\f' '~l
<br />
<br />j ~ \.." .-/.."~ ~ .. ...... '\,,-."j'
<br /><~~ :-.-,' i -~~..... '. . - :-:;tf! ;~r 'I
<br />
<br />~. ~~~'~t~.~;)\.. ..'<f~::;".t:t.'}iJ
<br />\'1' '.~'t';o'l' . ". ", " - ,~ \1 ..~.:
<br />'''j~ ~. ;;:-~......~ ll.~' .....\',
<br />~;.S. \ l.'k., r;.......n'.',.: . ";,:':-';';1
<br />"m" ".', - J",' '\"",'>1
<br />;'-4 - --l''lol,~.'fl f..f'li.#j.'~'''' ~:;;"'_: ~
<br />,,\jl ,\1, \~\~ :- ~!{-,~'.,~\l"("'" Joc\r f':t.~,{~/A!I
<br />.'"-; ~~>",':.;.: '.c '. ~ \ .',. 't. 'i._ '1.( "{~
<br />\.,.....
<br />
<br />,C '_''''''';'
<br />.. <;;,r
<br />'/:.
<br />
<br />,
<br />~
<br />
<br />Mr. l~oLb is no Jonger with Ihc Bureau, but we
<br />ha\"c heen informcd that rcsearch and sludies arc
<br />continuing on this ,'ital subject of efficient waler
<br />use, coupled with other crop resour('cs and inputs.
<br />Mr. Larry D. Slcphcns, chief of the teehnic<\1
<br />scn'iccs branch. Bureau of ncdam.ttion at Den\'cr,
<br />informed us rcccntly that a pilot program of
<br />irrigation scheduling is underway as a direct rcsult
<br />of the irrig;1tiol1 efficicncy studies.
<br />Whcn the studies arc complete, analyscs and
<br />recommcndations made (0 aid the irrigating
<br />farmcr, mnJG:\T10~' ACE will publish thelll.
<br />Meanwhile', we hclie\'e so strongly in thc 1969
<br />article that we are publishing portions of that same
<br />articlc no\\" in the hopc thai those who rcad it in
<br />1969 will read it again and put its principles inro
<br />practicc 011 their farms. And we h:\\"c gained
<br />numcrous new rC<ldcrs - ncw irrif'atol'S - since
<br />o
<br />that issuc was m:lilcd. We hope that lhe following
<br />anic!e will also h::- useful to Ihem.
<br />
<br />7
<br />
|