Detailed Explanation of Key Apple Spring Management Techniques

Spring is an important season for apple trees. At this time, temperatures rise, and it is the season when all things revive. Spring management is the foundation of apple management for the whole year. Only by doing a good job in this season's management can a good foundation be laid for the whole year's growth, development, flowering and fruiting, achieving the goal of high and stable yields. Now follow the editor to take a look at the key points of apple spring management.

1. Watering and fertilizing before bud break

For those who did not apply base fertilizer in autumn the previous year, supplement it promptly after the soil thaws, and at the same time apply quick-acting nitrogen fertilizer as a top dressing. Generally, for young trees, apply 0.4-0.6 kg of ammonium bicarbonate or 0.2-0.3 kg of urea per tree; for mature trees, apply 1-2 kg of ammonium bicarbonate or 0.5-1 kg of urea and 2-4 kg of superphosphate per tree. Then water, and at the same time pay attention to loosening the soil to preserve moisture, break up the soil condition, increase soil permeability, and create a good environment for root growth and development.

2. Supplementary pruning before flowering

For supplementary pruning before flowering, appropriately thin out some weak flower buds on plants with excessive flowers, and shorten some medium and long fruiting branches. For slender branches and weak fruiting branches that do not form flowers, promptly thin out those growing too densely, and shorten the remaining ones. For branches with no fruiting capacity, promptly cut back to a vigorous bud at the rear, and leave 3-4 flower buds on flowering branches for shortening. For branch groups that have been left for 2-3 years and have not yet formed flower buds, cut back to a rear branch or blind node, and control the flowering branch rate at 25%-30%. Before bud break, make multiple ring cuts on 1-year-old branches, which can increase the bud break rate and branching ability. Ringing during the flowering period of young trees has a significant effect on controlling excessive vegetative growth and increasing the fruit setting rate.

3. Flower and fruit management

At the flower bud separation stage, leave one inflorescence about every 20 cm. For weak trees with excessive flowers, thin out some weak flowers. For normal fruiting trees, leave 2-3 flowers per inflorescence. Artificial supplementary pollination or placing bees in the orchard can significantly increase the fruit setting rate and yield. You can also spray Yifuyuan plant nutrient solution during full bloom, which has a very significant effect on improving the fruit setting rate and yield.

4. Pest and disease control

Comprehensive pest and disease control using various measures in early spring can achieve twice the result with half the effort. First, thoroughly clean the orchard, scrape off the rough bark and peeling bark of the plants cleanly, and burn diseased branches, dead branches, residual stumps, diseased and insect-infested fruits, weeds, fallen leaves, etc. in a centralized manner or bury them deeply together with base fertilizer, so as to reduce the base number of pests and diseases. During the germination period, apply Yifuyuan microbial nutrient solution throughout the orchard in the shed, which can enhance the photosynthesis of fruit tree leaves and make the leaves thicker and glossier. In addition, it should be noted that spring is the peak period for apple valsa canker. After the disease occurs, immediately scrape off the diseased spots down to the xylem, and at the same time scrape off healthy bark around the diseased spots to a width of 0.5 cm, then apply Yifuyuan microbial nutrient solution after scraping.

The above is an introduction to the key points of apple spring management. I hope it can help you. To learn more related knowledge, please follow us.