Effect of different level of organic and nitrogen fertilizers on fruit yield apple.(Malus domestica ) CV.ANNA
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2011, Volume 9, Issue 2, Pages 224-234
AbstractThis study was carried out during the growing season at 2007 and 2008 on apple cv Anna in private orchard at Radwania region (35 km – western Baghdad ).Trees were planted according to square method. This investigation aimed to verify the effect of different level of organic(0 ,5 , 10 , 15 kg/tree) and nitrogen for the former and (0 , 300 ,400 ,500g urea/tree) fertilizer on yield respectively. A randomized complete Block Design (RCBD) was used (with three replicates for each treatment combination). Result revealed that the treatment of (15 kg/tree)of organic fertilizer was superior significantly in fruit yield (82.29 kg ree) and other quality characteristics as compared with other treatments plants , whereas the lowest yield was that of the control untreated trees plants (67.54 kg/tree) . Nitrogen fertilizer of (500 g urea /tree) gave the highest fruit yield (89.02 kg ree) and highest quality values as compared with other treatments , Similarly a lower fruit Yield (56.08 kg/tree) was found in control trees. A significant interaction effect were recorded between the two fertilizer used regarding fruit yield and other quality traits .Organic fertilizer at 15 kg/tree with urae at 500 g urea/ gave the highest fruit yield(103.33 kg/tree) , whereas control treatment gave the lowest yield (45 kg/tree) . It can be concluded that organic fertilizer level of 15 kg /tree and nitrogen fertilizer level of 500 g urea/tree may be used effectively for higher fruit yield and quality characteristics cv Anna apple.
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