3. Fertilization period of nutrient cycle in fruit trees (taking fruit trees in full fruit period as an example).
1 During the period of basal fertilizer application, basal fertilizer was applied immediately after fruit harvest in autumn, mainly organic fertilizer, combined with the application of nitrogen, phosphorus and potassium fertilizers, according to the growing trend of nitrogen, phosphorus, potassium use, pay attention to the application of trace elements and elemental fertilizer.
2 Apply topdressing nitrogen before and after budding in early spring; if no basal fertilizer is applied in the autumn of last year, supplement may be applied in early spring.
3 Before flower bud differentiation, top dressing before flower bud differentiation has the most obvious effect on increasing yield. In Shandong, flower bud differentiation is generally in mid-June. Fertilization should be done at the end of May or early June, mainly with nitrogen and phosphorus, with potash fertilizer.
4 During the fruit enlargement period, phosphorus and potassium are the main fertilizers, and nitrogen fertilizer is generally not applied.
4, fruit tree fertilization method.
1 soil fertilization method ring-shaped fertilization, suitable for saplings applied base fertilizer; bar-shaped fertilization, suitable for close planting orchard base fertilizer;
Radial fertilization is suitable for the application of basal fertilizer in orchard fruit. The fertilization methods above fruit orchard should be used in turn year by year.
The mulch covers the hole and stores fertilizer and water, which is suitable for various orchards. The water-saving and fertilizer-saving effect is obvious.
The whole garden is fertilized and is suitable for densely planted orchards with mature roots.
2 top dressings are fed by spraying leaves and sticks, or trunk injections to supply nutrients.
3 Fertigation Fertilizer Fertilizer is dissolved in irrigation water and fertilized with a micro-irrigation system.
1 During the period of basal fertilizer application, basal fertilizer was applied immediately after fruit harvest in autumn, mainly organic fertilizer, combined with the application of nitrogen, phosphorus and potassium fertilizers, according to the growing trend of nitrogen, phosphorus, potassium use, pay attention to the application of trace elements and elemental fertilizer.
2 Apply topdressing nitrogen before and after budding in early spring; if no basal fertilizer is applied in the autumn of last year, supplement may be applied in early spring.
3 Before flower bud differentiation, top dressing before flower bud differentiation has the most obvious effect on increasing yield. In Shandong, flower bud differentiation is generally in mid-June. Fertilization should be done at the end of May or early June, mainly with nitrogen and phosphorus, with potash fertilizer.
4 During the fruit enlargement period, phosphorus and potassium are the main fertilizers, and nitrogen fertilizer is generally not applied.
4, fruit tree fertilization method.
1 soil fertilization method ring-shaped fertilization, suitable for saplings applied base fertilizer; bar-shaped fertilization, suitable for close planting orchard base fertilizer;
Radial fertilization is suitable for the application of basal fertilizer in orchard fruit. The fertilization methods above fruit orchard should be used in turn year by year.
The mulch covers the hole and stores fertilizer and water, which is suitable for various orchards. The water-saving and fertilizer-saving effect is obvious.
The whole garden is fertilized and is suitable for densely planted orchards with mature roots.
2 top dressings are fed by spraying leaves and sticks, or trunk injections to supply nutrients.
3 Fertigation Fertilizer Fertilizer is dissolved in irrigation water and fertilized with a micro-irrigation system.
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