Blueberry seedlings are cold-resistant at a low temperature of several degrees below zero. Blueberry seedlings can withstand a low temperature of about MINUS 20 degrees. Most varieties of blueberry seedlings will be frozen at MINUS 27 degrees. The optimum temperature for the growth of blueberry seedlings is between 15-30 degrees. It has a wide planting range and is basically distributed all over the world. Mainly planted in Liaoning, Heilongjiang, Jilin and other places in northern China.
Blueberry Orchard Cultivation Techniques When planting blueberries, we should choose a place with no pollution, convenient transportation and far away from the city to build a garden, choose soil with loose and fertile soil layer and rich organic matter for planting, turn over 50 cm and apply decomposed organic fertilizer, dig planting holes with a width of 60 cm and a depth of 40 cm after mixing evenly, select healthy and strong seedlings for planting, and then backfill the soil and water the roots.
Field management of blueberries After planting, blueberries need intertillage weeding and pruning. Weeding combined with loosening soil can increase the permeability of soil and is beneficial to the growth of root system. When pruning young blueberry trees, we mainly focus on cultivating tree vigor, pruning weak branches, erasing flower buds and reducing nutrient consumption. In this way, pruning weak branches and branches that are too long and too dense can ventilate and transmit light, promote the formation of flower buds, and achieve the goal of high and stable yield.
Prevention and control of pests and diseases in blueberry planting Blueberries are easy to be infected with pests, mainly moths, spiny moths and other pests. During April-August every year, the adults of pests are lured and killed with fill lamps at night, and the moths are blocked with cotton wool soaked with dichlorvos to poison the larvae. In order to prevent pests and diseases, it is necessary to combine prevention with control.