Improving Mango Productivity by Spraying Some Natural Extracts and Adding Humic Under the Conditions of Newly Reclaimed Lands
Keywords:Mango Keitt, alga extract, liquorice root extract, dry yeast, yield, fruit quality
This work was carried out through 2019 and 2020 seasons on “Keitt” Mango (Mangifera indica L.) of 10- years old, grown in sandy soil and planted at 2x3 meters apart under drip irrigation system at private orchard located on Cairo-Alexandria desert road 58 km from Cairo, Egypt. The aim of this research is to study the effect of seven spraying treatments ( T1:Control - T2: alga extract 2 g.l-1 - T3: alga extract 4 g.l-1 - T4: dry yeast 5 g.l-1 - T5:dry yeast 10 g.l-1 – T6: liquorice root extract 5 g.l-1 –T7: liquorice root extract 10 g.l-1) with three humic acid application (H1: 0 treatment , H2: 20 g/tree/season and H3: 40 g/tree/season) as a soil treatments on yield and fruit quality in a factorial experiment. The obtained results cleared that all treatments led to a significant improvement in vegetative growth, yield and quality characteristics of mango fruits. Spraying algae extract 4 ml/liter gave the highest results in most of the studied characters in both seasons compared to the rest of the spraying treatments. It was also found that the addition of humic acid led to improved growth and increased fruiting as well as natural and chemical properties of fruits during the two seasons of the study, as the treatment of 40 g / tree was better than 20 g / tree in all studied traits. Moreover, T3 with H3 gave the highest leaf area, total chlorophyll, yield and fruit quality.
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