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

Part of Kentucky Agricultural Experiment Station

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`0gl'1 .............. 126 CI`&tS per acre T` The recent unusual cold period of From these figures it is seen that, 2g` HlldDCTDbl` tLlITll'Jld in general, wherever nitrogen was t tmDr21l1`S to 81` Zl`0 all 0V1` added the yield was depressed. How- arr lientucky, caused considerable _1n- ever, {all nitrogen depressed the ff ]LlI'y to Ul'lI'OUlChd Sll`Z1WbI`l'lS. yields rnueh less than Spr-ing appli- . Tl1iS_ iojl-l1`y CHU 0W b_ l0atd by cations or a combination of fall and 4 dlggmg Dl8lS and Sllcmg down spring applications. There was some t5 through the Crowns of tht? HQW Dl3tS difference between varieties as ll and thI`OLlgh l.hll` 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 firstyear plants helpful to Starbright and Dresden, $7 are clear and white on the inside; tvt'0 new varieties apparently not t while it is natural for second year adapted to Kentuelry_ Fall nitrogen 1 and Older Dl3tS to tum Dinkish. 01 was decidedly helpful to Catskill, 8 dark bl`lCl(-l`d OH tll lI`lSld. Fairfax, Tennessee Shipper, Ten- ; at . 1944 records will, no doubt, show nessee Beauty, and G3ndy_ ln the ries, that growers who mulched their spring nitrogen plots there was sely berries before the recent mid-D- larger, taller, and greener foliage; fax, ` cember freeze-up will net a sizeable maturity was delayed and there 1han profit from this work at harvest were more rotted fruits, 'tllltl l1m These results are generally in line ll ld P with previous trials in this state. Bl j ..... In several previous tests and obser- that vationsi; it gas bcenl notedbthat after 5560 ; tr a soil as een uit up, y a rota- ll$ 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_Fterefore, 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 s (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 OfCltt1.&rEu1.Opit3\, 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 Vgldbl 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`Vl0l$ 1`0PS but, HS m1lll0llCd, 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 .