ANBAR JOURNAL OF AGRICULTURAL SCIENCES

Abstract

This 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.