Scientific Papers Series B Horticulture

Table 8. The Influence of irrigation level on the production of apples for the same variety and the same level offertilization, average of 2008-2011Variety Generous FlorinaNon-fertilized 2,5 kg/ha 5,0 kg /ha Non-fertilized 2,5 kg /ha 5,0 kg /haFactor CxBProd. t/ha Dif. Prod. t/ha Dif. Prod. t/ha Dif. Prod. t/ha Dif. Prod. t/ha Dif. Prod. t/ha Dif.Non-irrigated 12,95 - 13,73 - 14,37 - 12,73 - 13,89 - 14,80 -2 l/h 15,10 2,15 *** 16,57 2,84 *** 18,11 3,74 *** 14,67 1,94 *** 16,49 2,60 *** 18,12 3,32 ***4 l/h 16,83 3,88 *** 19,32 5,59 *** 21,77 7,40 *** 16,65 3,92 *** 19,14 5,25 *** 21,90 7,10 ***DL 5% = 0,247 t/ha DL 1% = 0,350 t/ha DL 0,1% = 0,504 t/haTable 9. The Influence of variety on the production of apples for the same level of irrigation and fertilization, average of2008-2011Irrigation level Fertilization level Generous FlorinaDif.t/haSignif.Non-irrigated Unfertilized 12,95 12,73 -0,22 - 2,5 kg/ha 13,73 13,89 0,16 - 5,0 kg/ha 14,37 14,80 0,43 *2 l/h Unfertilized 15,10 14,67 -0,43 0 2,5 kg/ha 16,57 16,49 -0,08 - 5,0 kg/ha 18,11 18,12 0,01 -4 /h Unfertilized 16,83 16,65 -0,18 - 2,5 kg/ha 19,32 19,14 -0,18 - 5,0 kg/ha 21,77 21,90 0,13 -DL 5% = 0,311 t/ha DL 1% = 0,545 t/ha DL 0,1% = 1,263 t/haThe variants fertilized with 5 kg/ha, regardlessof irrigation level, Florina variety exceeded theproduction Generous variety, showing a greatercapacity for recovery of the fertilizer, butinsignificant.CONCLUSIONSInfluence on the production of apple variety,average of the years 2008-2011. On averageover the three years of experimentation, theGenerous variety showed a higher yieldpotential than Florina variety, but yielddifferences between them are significantInfluence of drip irrigation level on appleproduction, average of the years 2008-2011Irrigation level resulted in increases of theproduction obtained and increases as highlysignificant statistically assured for the twolevels of irrigation applied. The highest yieldswere recorded in variants where were appliednorms of 4 l/h, increases production of 40,1%,and increases of crops of 5,52 t/ha. Influenceof fertilization level on the production ofapple, average of the years 2008-2011.Level of fertilization causes very significantproduction increases for all levels of fertilizerapplied. The highest yields were achieved atdoses of 5 kg/ha Megasol (18,18 t/ha), withincreases of 22,7% (3,36 t/ha).Influence of fertilization on the productionof apples to the same level of irrigation,average of the years 2008-2011.Fertilization brings very significant productionincreases at all graduations used but irrigationapplication makes these increases to besuperior to those obtained only afterfertilization. The highest yields were obtainedat fertilization with a dose of 5 kg/ha,regardless of the norms of irrigation appliedwith a maximum increase irrigated with 4 l/h(5,10 t/ha).Influence of irrigation level on theproduction of apples for the same level offertilization, average of the years 2008-2011.Irrigation resulted in very significantproduction increases regardless of fertilization,yields based on the value of 2,05 t/ha andreaching at a value of 7,25 t/ha. The highestyields and hence the largest yield increaseswere obtained in irrigated variant with 4 l/h andfertilized with 5 kg/ha Megasol, 21,84 t/ha, andan increase of 7,25 t/ha.Influence of variety on the production ofapples for the same level of fertilization,average of the years 2008-2011.97