What blueberry varieties are suitable for planting in the north
Blueberry varieties suitable for planting in the north include Meaden, Svejk, Northblue, Northcountry, Earlyblue, Jersey, Bluecrop, Darrow, Elliott, and others. Because the northern climate is cold, it is necessary to select blueberry varieties with relatively prominent cold resistance, the most common being northern highbush blueberries. The blueberries produced by this type of variety are relatively large, quality control is strict, and the taste is more delicate.
Blueberry Planting Techniques
1. Seedling Selection
It is most suitable to choose two- to three-year-old blueberry seedlings, as they can bear fruit in a short time. During seedling selection, the length of time has a great impact on future cost calculation and the growth cycle. Be careful to avoid seedlings with pests and diseases, and choose only those with good growth.
2. Orchard Site Construction
Choose a location with a relatively small slope to maintain good development and absorption of the blueberry root system. The soil can be selected to be relatively strongly acidic. The annual blueberry planting time can be divided into spring and autumn. The survival rate of autumn planting is higher than that of spring planting. Determining the row height and spacing according to different varieties can improve the fruiting rate and yield.
3. Soil Management
Generally, clean cultivation work can begin around August each year. The longer it is delayed, the more unfavorable it actually is for blueberries to overwinter. Common methods include clean cultivation and sod culture. When weeding, efficiency must be emphasized so that nutrients can truly be delivered to the roots that need them. If weeding work is done properly, the yield can basically be doubled, and soil mulching can also inhibit the rampant growth of weeds.
4. Fertilization
Blueberries mainly rely on nitrogen, phosphorus, and potassium fertilizers, with a ratio of nitrogen, phosphorus, and potassium of 1:1:1. Applying nitrate nitrogen fertilizer is prohibited, and applying chlorine-containing fertilizers such as ammonium chloride is also prohibited.
5. Irrigation
As mentioned earlier, the root system of blueberries is relatively shallow and they prefer moisture, so watering is very important. Water with high pH cannot be used for irrigation; acidic water should be used, once every 3-5 days.