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Image 3 of Kentucky fruit notes, vol. 2, No. 6, January 1944

Part of Kentucky Agricultural Experiment Station

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md roots, and fruit buds. It is generally For the whole eleven varieties the ’kY considered that temperatures of l5° average yields were as follows in tcm or lower will cause injury in the 1943: Elm early winter to unmulched berries; N N. · while in mid-winter the plants can Fon Iflliogen ·········· 199 crates Per acre stand lower temperatures with less Sa . ‘{\?.g€“ ·······- 190 crates Per acre injury. Temperatures of zero to l0° Fpliing d gmgcn ···· 134 crates Per acre below zero will cause serious injury, ElN.tan prmg in as evidenced in 1940- l I`0g€l'1 .............. 126 CI`&t€S per acre T` The recent unusual cold period of From these figures it is seen that, 2g` Hlld·D€C€TDb€l` tLlITll'Jl€d in general, wherever nitrogen was t t€mD€r21l¤1`€S to ¤€81` Zél`0 all 0V€1` added the yield was depressed. How- arr lientucky, caused considerable _1n- ever, {all nitrogen depressed the ff ° ]LlI'y to Ul'lI'OUlCh€d Sll`Z1Wb€I`l'l€S. yields rnueh less than Spr-ing appli- . Tl1iS_ iojl-l1`y CHU ¤0W b€_ l0€at€d by cations or a combination of fall and 4 ‘ dlggmg Dl8¤lS and Sllcmg down spring applications. There was some t5 through the Crowns of tht? HQW Dl3¤tS difference between varieties as ll and thI`OLlgh l.h€ll` l`OOl.S ClOS€ to l.h€ nOted_ In practically all cases addi- :8 CI`O\Vl'l. If l.l'lE CX`OWl'lS O1' I`OOl.S l`l8V€ tional nitrogen reduced the yield On tl _ brownish, rusty colored areas this Blakemore and Premier, main var-ie- ;0 , indicates cold injury. The roots and ties. Spring nitrogen was slightly crowns of healthy first—year plants helpful to Starbright and Dresden, $7 are clear and white on the inside; tvt'0 new varieties apparently not t while it is natural for second year adapted to Kentuelry_ Fall nitrogen 1 · and Older Dl3¤tS to tum Dinkish. 01‘ was decidedly helpful to Catskill, 8 dark bl`lCl(-l`€d OH tl‘l€ lI`lSld€. Fairfax, Tennessee Shipper, Ten- ; at . 1944 records will, no doubt, show nessee Beauty, and G3ndy_ ln the ries, that growers who mulched their spring nitrogen plots there was sely berries before the recent mid-D€- larger, taller, and greener foliage; fax, ` cember freeze-up will net a sizeable maturity was delayed and there 1han · profit from this work at harvest were more rotted fruits, 'tllltl l1m€· These results are generally in line ll ld P with previous trials in this state. Bl j ..... In several previous tests and obser- that — vationsi; it gas bcéenl notedbthat after 5560 ; tr a soil as een uit up, y a rota- €l€l$ STRAW BERRY NITROGEN tion using general fertilizers and a 6*205 ‘ r TESTS leguminous cover crop, additional gh? . nitrogen often reduces the straw- l_92 I-e>¤¤gt<>¤ berry yields. However, there are un- ’llll<‘ C S WALTMAN doubtedly many locations and some 100 t ' ` varieties wheike extlia nitrogeni _ es eciallr the all a ication, wi that 1 In September 1942, some nitrate pg¥;*_ Tliis problem_Ft£erefore, goes firm 5 fertilizer trials on eleven varieties bael.; to individual cases and the fact l llltf of strawberries were started. The that each grower should study his i WON 1942 growing season had been very individual needs and act accordingly. EBVY favorable and most varieties had made heavyd plant glrgwth. Plots g were nitrate three i erent ways: ·r ·· (1) Fall nitrate on September 3; ll HATSAHEAD és (2) Spring nitrate on May 4; (3) By A_ J_ OLNEY ' Fall and spring nitrate; (4) No nitrate after setting and no fertilizer . , _ - _ before setting. The fertilizer applied fugge 0%% Gill]; lgilgspiglts Ugg; iii; was nitrate of soda at the rate of fruit gmwcl. at this time are as ‘ 200 Pounds pw acre and thc plots bright as in any field of agriculture. fertilized in fall and spring got this The O1.Chm.dS OfC€ltt1.&rEu1.Op€it3\,€ amount each time. The soil was been destroyed tnrengn neglect and donc good productive garden soil that the ravages or war. Knowledge of rl`”“" had been gl`0Wll lll 3 V€g€ldbl€ l`0l3· the importance of fruit in the diet, have tion and had had fertilizer on the as a means of promoting health, has E lew pl`€Vl0‘·l$ €1`0PS but, HS m€1lll0llCd, reached a level heretofore unattain- $€l`l‘ NODE immediately ahead of the ed, The peoples of the world are )Wll$~ Strawberries, becoming fruit conscious. Fruit ex- 3 .