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Image 9 of Kentucky farm and home science, special report 1, July 1955

Part of Kentucky Agricultural Experiment Station

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, rt *rr ‘ ’ "',[Y" "fi"H¤' .. Ty ‘ . · .: 4 . , Y"‘ , ‘ ·V _· , . ’ . ;,*5 if i` .V ‘ `·`- `E . _ .. · ·* t . — I * ‘ I 4,t§_?`?:-.‘t·:` V gl y rr4v=’ ·5r 4 A, .4 4.}- ~44; 4 fet- ~ ·€-t . rv:. ··“ >· — . . ·’ , ' ` `O .` ..,, `iwt »·_ »~e~;iw·_ · g;.] · f· . O I '}`· `A; V .. .,· ·—= ,t_, H ,» t,.~, ·..`, .. or It .V·, , . ‘ V _ - · - . · · » ·· ~ ·f*~t· bsgas — \‘·.~.~\ .»-a3~·q—»..~··» - .. . -. .`.- · .. . , ‘ · l•tqv~v,f' iyéim AVy~.·· = "¥§¥§;si$?·¤$i—<t:t;2§}"’&?ii" ··:»»`>‘i*V—— V Q . 3 3 "‘°Y$Z Q L:44 , · » . V._V sy. . _ _:_;{;·;;_g=.;;...¥.:_t_gag`.-;<_° f ‘ *»\*444 ,4 · V * [ 4 i ·'l‘Yg*;4i - °‘f4:;v Ii B. ‘V_ ,L,"t{t;-4ij_>_ Q _4"lt_ . 4, * ·- *~ It les.: `,)· it ifilig l. gv , _ X Q44 , 4— ’ V, »_ lv ’4144;4) . fx 4- 4 ·_~.]» 4h,t_4·{4 Hy". ` { 4 ifi 44 `iy ° _ , ,·{‘4 4,.. Q 4` ?’_;`_4t"__’4 · _ , _ ·.·.4.t»js·· ·* ·4 44; 4. 4, ‘ . , · V.; .4_ x K ,pt·.;‘a£jt_¢»__y,; 1 — s·*»__4».,_g { _ .. _ ,__.,__4·-,_.»» .;r—*- 2 __,4 _., ·, 4, ],_.;j·_4.-:~ 4_ tp ·;_;—» __ V ‘ t ·’A‘ , ’ . Z`--,/4 -~ ” " ` j~ ·· ` _ ‘ _ f A Avi. \» c ·~·•,. A_—,’ H ·· ; —— .. V ~ . V » :7 Sw. M., 4; J, ·4 *>""s$44 ’_4 ‘4‘ ·4{ ¤,_‘ _ I · I · · 4 V- , 4 __ J`., ` t '·‘ \ Wy; · 4 `- >—__ ` .‘-‘v¤- ·— if . V‘V_* _;s~»>;;r;*·=_ ·V ·· ‘ · — 2 " ‘ * ? ‘· L ’.—. ·=—-5 _- :1- t- L4 444; 4~t4 4 s , 4 4 4 » 4 44 { ~4 ~ v4_4 .;·_— _r)4 ~.· 44 44`4 V lt, · 4- · 4 x ·_ 4 Tl 4_ 4L` ‘ » ·· · — LVV . ’ » V ~` if V" ` ( — ' · · si {,9 ‘_ ;· ·*‘ ·' , ,-tml `, f- ` ` _ · F, A-- ’ *4f .' ,_4yV F 4 { _ `· _ .- _ The tobacco at the left in the picture above is growing in various sod rotations. At the right, in the background are » ilots where tobacco is rown everv ear. In the fore round on the ri ht are sod nlots which will be in tobacco in later -> l S . Y _ g 4 g _ l 4 years. In these tests the most profitable tobacco is grown m the sod rotations. a A BUBLEY TOBACCO ROTATIONS t By C. E. Bortner, Agronomy Department qi" For many years studies at the Kentucky Agricultural of years have produced tobacco above average in fi Experiment Station have been made of the effect of smoking quality. l various grass and legume rotations on the production In the accompanying table tobacco produced in con- ” of burley tobacco. New and different grasses and tinuous culture is compared with tobacco produced in legumes and new tobacco varieties have been used in rotations. These rotations were laid out to study the the rotations as they have cotne into common use in efficiency of the various sods and cover crops in pro- farming. ln those rotations where adequate phos- viding nitrogen for burley tobacco. Fifty pounds of if phorus and potassium were available for the growth nitrogen applied to the sod increased both the yield ,4 of both the tobacco and the grass and legumes, high- and quality of the tobacco, as compared with that ,( quality useful tobacco has been produced with a grown on similarly cropped land without nitrogen minimum of nitrogen fertilization. The tobacco has fertilization (treatments 9 and I0). Under continuous 1 obtained most of its nitrogen from that which had culture with a barley-vetch cover crop, 50 pounds of accumulated in the soil during the time the land was nitrogen was not so effective in the production of t in rasses and le times. smokin Y tobacco as was the saute amount of nitro ren ?. . 5 _ fw 3 W_d h _ f d with sod (treatments I0 and 2). \-Vhen the nitrogen ' Q . . . . . I C mcg 0 S° S a mlicatton was increased to Iflfl iounds tn conttn» ’ ll 'll·'l\€* llfflc fllfl€l€'lf€ Wlllfll Klahbes Ol l€f%“'“€* uous culture (treatment I). quality improved only 4 —4 *"`C l'*C‘l· W lmlg M gfim imfl l€%U'“€$ °""“I’Y lh'? limfl slightly over that obtained with the 50-pound ap- (lurmg most ol the rotattott. Blll€gl`2lSS, or(`bal`(l gI`2lSS. l)li(`;[ti()]'] (treatment 2), Neither the value per acre I K(”l‘ll'(`l*" ffl l-C*f`l'C» fll“0flll'· l`€(lfOIl· imfl S¤¤<>¤rh nor the smokin r c ualitv of the tobacco iroduced 4 » b l . l ` l)l`()lll€lj;l`ilSS S()(lS ll2I\'€ l)€€Il llS€(l \\'l[ll ll[[l€ (llff€l`€IlC€ under (-Ontinuoug Culture tous gqunl to that Of the tO. _4 tn yield or tn composition ol the tobacco produced. bm-(-0 Pl·0(]u(—€(] On sod land (U-Cmmem |())_ 1 .'t larmer thus has a wtde choice in the grass he can _ 4 ` V use in a tobacco rotation. Red clover, sweet clover, L"“'”9 f° m°'"f°'“ legumes 4 liorean lespedeza, and alfalfa have also been used in Liming of plots to maintain a better growth of rotations alone and in combination with grass. (lom- legumes caused no significant difference in either , binatious of these grasses and legumes over a period yield or quality of leaf (treatments ll and fl). ln * .~\c:1ttCU1.’rU1tAt. lfxt*1·1tttt\1t·2N’1‘ STATION 9 2 i