American Blackberry Cultivation Technology

The United States Blackberry originates from North America, which is a perennial vine of Rosaceae blackberry. It is already the third generation of emerging fruit that has developed rapidly in Europe and the United States. Its fruit is juicy, soft, crystal clear and bright, purple-black, fruit oval (like strawberry), containing 10.0% soluble solids, total sugar 5.07%, organic acids 1.2% -8%, VC11-18 mg / 100 grams, Ve2.12 mg/100 g, rich in anti-aging nutrients such as SOD, а-aminobutyric acid, calcium, zinc, etc., fruity sweet and sour moderate and delicious, aroma overflowing, its nutritional value far in apples, oranges, grapes, etc. Above fruit, it can be called the "king of fruit" in the world. Xuecheng District, Zaozhuang City, Shandong Province, introduced the blackberry successfully under the guidance of the Institute of Botany of the Chinese Academy of Sciences in 1995. It was approved by Zaozhuang City Science and Technology Commission and the Municipal Bureau of Finance as a key development project. Planted in the year can be fruited and matured in early July in the Xuecheng area. The fruit weight is 7-10 grams and the yield per mu is about 2000 kg. The fruit juice and water are blended into juice drinks in a ratio of 1:8, which has a strong sweetness, acidity, aroma, and natural color. The development prospect is promising. The key points of blackberry cultivation and management are:

First, build a garden and plant

Choose a well-drained, fertile soil for landscaping, plains and slopes. It can be planted in winter and spring. The plant spacing is 1.52 meters and 300 acres are planted. The diameter and depth of the planting hole are 0.5 meters, and a small amount of farmyard manure is placed in the hole.

Second, scaffolding

The rack type can be used as a fence bracket, that is, every 5-6 meters along the planting line, a branch is erected, the pillar is 1.8 meters high, and 2-3 wires are pulled on the pillars, and the ground piles are tensioned and fixed at both ends.

Third, trim

In early April and early May, the roots of the rhizomes were selected to leave 3-4 robust sprouts, and the others were all removed. When the buds grow to 1-1.5 meters, they are topping to control their height and promote lateral branch growth. In winter, all the pests and freeze-dried sprouts are cut off, and some thin and dense branches are removed, and the remaining branches are appropriately short-cut. In general, 10 to 15 lateral branches are maintained per plant, and the branch length is 1.2-1.5 meters.

Fourth, fertilizer and water management

In the winter, organic fertilizers can be applied in conjunction with turning the ground. For example, 5-10 kilograms per plant can be used for manure application. Fertilizers can be topdressed before flowering (in mid-May) and during fruit expansion (mid-June). Generally, 50-75 kilograms of compound fertilizer is used. / Strain.

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