The immature blueberry flesh is white, the ripe blueberry flesh is light green, with brown seeds in the middle, if the flesh is blue-purple, it is said to be over-mature. Selection of blueberries can be observed in its appearance, the appearance of complete and full of blueberries is generally better quality, shriveled, small holes in the surface of the blueberry has been infested. Ripe fresh blueberries have a bluish-purple appearance and are covered with a layer of fruit powder, which is hard to pinch, while blueberries that are about to go bad are soft to pinch.

First, what color is the flesh of blueberries

1, flesh color

(1) In general, the immature blueberry flesh is white, while the mature blueberry flesh color is light green, with brown seeds in the middle.

(2) If the flesh is the same blue-purple color as the skin, it has overripened, causing the color of the skin to seep into the flesh.

2, selection methods

(1) look at the shape

shape is more complete, full of blueberries of better quality, the surface of the dried out or small holes in the blueberries generally have been worms.

(2) look at the color

The appearance of ripe fresh blueberries is mostly blue-purple, and covered with a layer of white frost, i.e., fruit powder.

(3) Try the hardness

The better quality blueberries pinch hard, while the blueberries that are about to deteriorate and rot pinch soft.

Second, blueberries are suitable for planting in which areas

1, planting areas

(1) blueberries are suitable for planting in China's Guangxi Province, Yunnan Province, Guizhou Province, Jiangsu Province, Jilin Province, Liaoning Province, Anhui Province, Shandong Province, Heilongjiang Province and other places.

(2) South China blueberry production area, the Yangtze River Basin blueberry production area, Liaodong Peninsula and Jiaodong Peninsula blueberry production area, Changbai Mountain and the size of the Xing'an blueberry production area is China's blueberry four major planting areas.

2, notes

(1) planting sites around the adequate water supply, the soil should be loose and aerated, well-drained, PH value of 4-5.5, organic matter content of 8-12% (not less than 5%).

(2) Reservoir water, river water, groundwater can be used for irrigation, but can not be watered with water with too high salinity.

(3) PH can be adjusted by spreading sulfur powder if necessary, and the effect can be maintained for more than 3 years after spreading.