I. Introduction
Calcium fruit is a new high-quality fruit variety unique to China, which was discovered and bred by Professor Du, a Chinese fruit expert, from the wild plant Prunus humilis for more than ten years. Its fruit contains high calcium content, so it is called "the star of calcium supplementation". In addition to fruit tree cultivation, it is also a good material for making miniature bonsai for fruit viewing. Beijing Bureau of Landscape Architecture listed it as a new superior tree species in "New Beijing, Great Olympics" and "Urban Greening Action". Also known as Ou Li.
Second, the cultivation techniques
Garden planting: choose the flat land or gentle slope with sunny lee, deep soil layer and fertile soil to build the garden.
Key points of management: water 1 time every day for half a month after planting, and the survival rate is high. 2-4 times of intertillage weeding should be carried out during the growth period. Every year in June 5438+ 10, 1 kg decomposed farmyard manure was applied to plants at constructio n, which was 5 cm away from Shubo/kloc-0.
Plastic pruning: adopt cluster or natural happy shape. After planting, the height of the seedlings is about 30 cm, and they are trimmed and fixed. Cultivate 3-4 main branches and large, medium and small fruit branches. For auxiliary branches, more erect branches and large branches, the branches are opened at a certain angle in summer to increase the number of medium and short branches.
Harvesting and processing: the fruit period is from early August to the end of September, and the single fruit weighs 6-8g, with the maximum weight of10g. After harvest, fresh fruits can be sold or processed into fruit juice, fruit wine, preserved fruit and canned food.