الفهرس | Only 14 pages are availabe for public view |
Abstract This study aimed to : The scope of the present investigation is to detect the effectiveness of foliar application of humic and fulvic acids with some nutrients and time of its application as well as interaction between them in enhancing the vegetative growth, productivity and fruit quality of Anna apple. Methods and Results : The experiment was conducted on 60 apple trees Anna cv. in clay soil and spaced at 3 x 4 meters apart in both seasons, ten treatments were carried out, each treatment replicated three times considering each two trees as a replicate using a split plot design , humic and fulvic acids extricated from compost tea were added at 4 liter/fed. mix with calcium nitrate (0.4 %) , zinc sulphate (250 ppm) and borax (20 ppm) were arranged in the main plot, while the time of application were distributed in a sub plot. Conclusion : It cloud be concluded that at the same conditions of this work, spraying apple trees with humic or fulvic acids at the rate of 4 liter/fed with mixture of calcium nitrate ( 0.4 %), zinc sulphate ( 250 ppm) and borax (20ppm) at bud burst and after fruit set stages were the best for enhancing vegetative growth characters, yield and best quality of apple fruits. |