When is it appropriate to top-dress apple trees?
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When is it appropriate to top-dress apple trees?
Top-dressing for apple trees is mainly used during the fruit-setting stage, flower bud differentiation stage, and fruit expansion stage, supplementing the nutritional needs of apple trees during different growth periods. It is generally carried out 1 to 3 times a year. For young apple trees, nitrogen fertilizer is recommended, and if the young trees are growing weakly, they should be top-dressed in early spring with small amounts multiple times. During the growth period, the trees grow frequently, and the root system expands rapidly, requiring the application of nitrogen, phosphorus, and potassium fertilizers.
Top-dressing time for apple trees
Top-dressing for apple trees is mainly used during the fruit-setting stage, flower bud differentiation stage, and fruit expansion stage, supplementing the nutritional needs of apple trees during different growth periods. It is generally carried out 1 to 3 times a year.
Top-dressing for young apple treesFor young apple trees, nitrogen fertilizer is recommended for top-dressing. If the young trees are growing weakly, they should be top-dressed with small amounts multiple times in early spring.
Top-dressing during the growth period of apple treesApple trees have multiple growth peaks during the growth period, with rapid root expansion. After each growth peak, nitrogen, phosphorus, and potassium fertilizers should be applied.
Top-dressing fertilizers for apple trees
Fruit expansion stage top-dressing: Top-dressing apple trees in June can promote fruit expansion and improve coloring, which has a positive effect on yield.
Bud before and after top-dressing: This top-dressing helps apple trees germinate and bloom, promoting the growth of spring shoots. It mainly consists of nitrogen and phosphorus fertilizers, and it is recommended to use the "radial trench" method for top-dressing.
Top-dressing methods for apple trees
For trees with many poor-quality flower buds, a quick-acting nitrogen fertilizer should be applied before germination to help them grow rapidly, allowing them to produce more flowers, fruits, and higher yields.
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