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Scientific Papers Series B Horticulture

Scientific Papers Series B Horticulture

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Table 3. The Influence of the level of fertilization on theproduction of apples, average of 2008-2011Fertilizer DoseProd.t/ha%Diff.t/haSignif.Unfertilized 14,82 100 - Mt2,5 kg /ha 16,52 111,5 1,70 ***5,0 kg /ha 18,18 122,7 3,36 ***DL 5% = 0,074 t/ha DL 1% = 0,101 t/ha DL 0,1% =0,135 t/haTo make an analysis of the data presented inTable 3. was considered as a stander-byproduction obtained on a unfertilized variant,14,82 t/ha. In comparison with this, therecorded production on a dose of 2,5 kg/haMegasol, 16,52 t/ha was higher by 1,70 t/ha,which is a very significant production increase.The dose of 5 kg/ha resulted in a production of18,18 t/ha, with 22,7% over the stander-byproduction, meaning an increase of 3,36 t/ha, avery significantly increase. In conclusion, thefertilization causes very significant productionincreases for all levels of fertilizer applied.Table 4. The Influence of fertilization levels on production of apples for the same level of irrigation, average of 2008-2011Irrigated norm Non-irrigated 2 l/h 4 l/hFertilizer dose Prod. t/ha Dif. t/ha Signif. Prod. t/ha Dif. t/ha Signif. Prod. t/ha Dif. t/ha Signif.Non-fertilizer 12,84 - Mt 14,89 - Mt 16,74 - Mt2,5 kg/ha 13,81 0,97 *** 16,53 1,64 *** 19,23 2,49 ***5,0 kg/ha 14,59 1,75 *** 18,12 3,23 *** 21,84 5,10 ***The influence of fertilization levels onproduction of apples for the same level ofirrigationAs noted previously, fertilization brings verysignificant production increases at allgraduations used but irrigation applicationmakes these increases higher than thoseobtained only after fertilization (Table 4). Onnon-irrigated variant, the production increasewas 0,97 t/ha at a dose of 2,5 kg/ha and 1,75t/ha at a dose of 5 kg/ha Megasol. With thewater irrigation administration, benefitsincreased to 1,64 t/ha, respectively, 3,23 t/ha.Norms of 4 l/h caused increases of productionof 2,49 t/ha, the fertilized variant with 2,5 kg/haand 5,10 t/ha, the fertilized variant with 5kg/ha. All registered harvest ups were verysignificant.Table 5. The Influence of irrigation levels on the production of apples for the same level of fertilization, average of2008-2011Fertilized Dose Non-fertilized 2,5 kg/ha Megasol 5,0 kg/ha MegasolIrrigated norm Prod. t/ha Dif. t/ha Signif. Prod. t/ha Dif. t/ha Signif. Prod. t/ha Dif. t/ha Signif.Non-irrigated 12,84 - Mt 13,81 - Mt 14,59 - Mt2 l/h 14,89 2,05 *** 16,53 2,72 *** 18,12 3,53 ***4 l/h 16,74 3,90 *** 19,23 5,42 *** 21,84 7,25 ***The Influence of irrigation levels on theproduction of apples for the same level offertilizationThe level of irrigation, on fertilizationbackground brings very significant yieldincreases (Table 5). The highest yields fromunfertilized variants were obtained fromirrigation norms of 4 l/ h, 16,74 t/ha with aproduction increase of 3,90 t/ha. Productionincreases amounted to 5,42 t/ha, where wereapplied 2,5 kg/ha Megasol and were irrigatedwith and 4 l/h. The highest yields and hence thelargest yield increases were obtained inirrigated variant with 4 l/h and fertilized with955 kg/ha Megasol, 21,84 t/ha, an increase of7,25 t/ha.The Influence of the variety on theproduction of apples for the same level offertilizationThe data presented in Table 6., shows thatGenerous variety recorded high yields towardsFlorina variety, but yield differences areinsignificant. The biggest difference ofproduction was obtained from unfertilizedvariant, 0,28 t/ha. Florina variety gets higherproduction but only at the variant fertilizedwith 5 kg/ha, where production exceeds the

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