Detailed Explanation of Key Technical Points for Blueberry Field Management
Blueberries have a unique taste, come in many varieties, and have high nutritional value, making them highly favored by consumers. After planting, a series of field management measures are needed, which are related to yield and quality. So how should blueberries be managed in the field? Let's take a look at the detailed introduction.
1. Fertilization Management
Blueberries have a relatively low demand for fertilizer. In soil that is fertile and high in organic matter, generally no nitrogen fertilizer or only a small amount of nitrogen fertilizer is needed; simply apply the deficient elements as a top dressing based on soil and leaf conditions. After leaf fall in autumn, apply organic fertilizer once as a base fertilizer. The amount applied depends on the size of the tree. Spread the fertilizer within a 30-40 cm diameter range around the tree, then cover it with soil. After planting, soil should be covered with organic fertilizer, which can not only increase the soil's organic matter but also keep the soil moist. In summer, it helps lower soil temperature, and in winter, it protects the root system.
2. Water Management
During the growing process, attention must be paid to water accumulation. Before planting, ridges are made, and the ridge surface should be about 20 above ground level to prevent water accumulation. After planting, water immediately to keep the soil moist and improve the survival rate. After that, water once every 2-3 days, about 1-1.5 kg each time. During drought, replenish with an additional watering in time to avoid drought damage. During the rainy season, also pay attention to drainage and waterlogging prevention.
3. Pruning and Training
In the year of planting, weak-growing branches and branches with pests or diseases should be pruned off. First, this is to prevent weak branches from consuming nutrients, concentrating nutrients in vigorous branches; second, it is to prevent the spread of pests and diseases. When the plant enters the fruiting stage, attention should be paid to the number of fruits. At this time, the tree's nutrients are not enough to supply the growth and development of too many fruits. At the same time, vigorously growing branches should be cut back to control their height, and densely fruiting branches should be pruned off, retaining about 50% of the flower buds of the whole plant. Pruning is best done during the plant's dormant period. In addition, after pruning, clean the orchard in time, remove weeds in the orchard thoroughly, and promptly burn the dead branches and fallen leaves as well as the pruned branches and leaves.
4. Pest and Disease Control
Throughout the entire growth period of blueberries, there are many pests and diseases. Common ones include leaf spot disease, canker disease, root rot, as well as white grubs, stinging moths, and others. Therefore, targeted prevention and control measures should be carried out according to their occurrence patterns. For pests, black light traps and manual capture can be used.
The above is an introduction to blueberry field management techniques. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.