How many blueberries can be planted in an acre of land? What are the planting techniques?

Blueberry is a kind of blue berry, which is rich in nutrients and a kind of fruit tree with high economic value, which is planted in Northeast China. How many blueberries can you usually plant per mu? What are the planting techniques?

How many blueberries can be planted on one or one mu of land?

1. The planting density of blueberry seedlings of different specifications is different. the one-year seedlings propagated are transplanted to the field at a distance of about 20 centimeters, and the planting depth is that the base of the stem is about 1-2 centimeters lower than the surface. Generally, 8000-10000 plants can be transplanted per mu.

two。 Two-year-old blueberry seedlings can plant 2000-3000 plants per mu.

There are 3-5 branches in 3.2-3 years, and the price of blueberry seedlings with a height of more than 80 cm is 330 / mu.

Second, what are the blueberry planting techniques?

1. Blueberry planting time

The varieties of blueberries grown in different regions are different, and the time of planting is also different. For example, in the north (north of the Yellow River), it is better planted in the warm spring season (March-April), while in the mountains of southern China, it is best planted in autumn (September-November). In other areas, it can also be planted in December or 2-3 years. This can improve the survival rate of seedlings and yield per mu to a certain extent.

two。 Planting techniques of blueberry

The main results are as follows: (1) Blueberry can grow healthily in acidic medium, and the pH value of cultivated soil between 4 and 5 is the most suitable for blueberry growth. When choosing planting land, we should try to choose the land with small slope, and it should be loose and breathable, which is beneficial to the growth of its root system.

(2) the prepared blueberry seedlings can be planted according to their corresponding row spacing, and the planting time is in spring and autumn, generally mainly in autumn, because the survival rate of planting in autumn is higher than that in spring. In addition, different varieties of blueberries have different row spacing, so we can plant them according to their corresponding row spacing. After planting, sufficient root water should be poured in time, and the suitable depth of intertillage should be 5cm-10cm, and the height of tillage tools should not exceed 15cm, which can be carried out from early spring to August every year, and clean tillage 2-3 times a year, which is disadvantageous to overwintering after autumn.

(3) applying fertilizer to blueberry planting soil with hole depth of about 10cm or leaf application, applying fertilizer twice a year, the first fertilization is before and after flowering from mid-April to early May, and the second after fruit harvest, that is, from late August to mid-September. Ear harvest nursery and young orchard should always maintain the most suitable water condition, adult orchard and full fruit stage should reduce water supply during fruit development and before fruit ripening, and restore the most suitable water supply after fruit harvest; reduce water supply from Mid-Autumn to late Autumn to facilitate plants to enter dormancy in time For the young trees transplanted out of the pot, it is only necessary to cut off the flower buds and a small number of overly weak branches or twigs, and for the seedlings transplanted without soil, in addition to removing the flower buds, it is also necessary to remove more relatively weak branches. remove the weak branches everywhere in the crown and the weak branches gradually weakened by the fruit, retract the dominant branch group which is weakened due to the result and replaced by the new branch group, and remove the diseased branches, withered branches, cross branches and nearby overlapping branches.

(4) in late November, combined with winter pruning, diseased branches and insect branches were cut, weeds were removed, and overwintering diseases and pests were eliminated. In December, combined with deep winter pruning, the soil was turned deep into 20cm to eliminate overwintering pests in the soil. During the blueberry fruit ripening period, birds were driven away by bird prevention nets or scarecrows, electric bird repellents and firecrackers. From mid-late April to the first half of May, carbendazim 400,600 times of concentration was used to control twice, with an interval of 10-15 days, and from mid-to-late August to October. Mixed control of about 50% carbendazim 400600 times or 2.5% deltamethrin EC 1000-1200 times for 1-2 times.

As the maturity of blueberries is inconsistent, so growers must be harvested in batches, generally in the full fruit period is 2-3 days harvest, the rest is 4-6 days harvest.