Generally, the cultivation value of black raspberry is selected in early spring, and it begins to bear fruit in the second year of field planting, and enters the full fruit period in the third year. The output is the highest in the fourth to fifth years, and the high and stable yield can be maintained for more than 15 years. Mainly produced in northern central China, Shaanxi, Gansu, Taiwan Province and southwest provinces, and also distributed in eastern Himalaya to Japan and Sakhalin Island. The main varieties are Qiu Jin, Jinfeng, Huangmi, Jinkewei and Jinsami. 20 10-20 12 years, Xia Guo raspberry can bear fruit in the second year after planting, and reach stable yield in the third year. Autumn raspberries can bear fruit in the same year after planting, and reach stable yield in the second year. After fruiting, it is usually mined in June and basically ends in mid-July. Raspberries have high requirements on soil and are suitable for growing in an environment with deep soil layer, good drainage and irrigation and rich organic matter. Therefore, when choosing land, try to choose soil rich in organic matter for planting. After selecting the land, we should dig about 25cm of soil and apply enough decomposed farmyard manure. Blackberries don't need much water, just keep the soil moist. After it grows for a certain period of time, it will grow vines and need to set up some support in time. It is generally best to build a column every 5 meters. When the branches grow to about 1.2 meters, the tips should be picked in time to promote the growth of plant lateral branches.

Fruit of black raspberry planting for several years

Grafted black raspberries blossom and bear fruit in the same year, and bear fruit twice a year, mainly in summer and autumn. Xia Guo's branches will mature in July of the following year, and autumn branches will mature in September.

Grafted black raspberry blossoms and bears fruit.

Potted raspberries have high ornamental value and begin to bear fruit in the second year. The fruit yield is very small at first, and then it will increase gradually. If the pots and barrels are large in size and properly managed, the output can still be increased.

Potted black raspberry hanging fruit

1. There is probably not enough light. Black raspberries especially like the sunny position, which is the favorite of raspberries. Without light, there would be no photosynthesis, and there would be no flowering and fruiting. 2. Unbalanced fertilization. Fertilization should be carried out according to the growth nodes of black raspberry, so that it can grow normally, especially before flowering, and the growth will change from vegetative growth to reproductive growth, which can increase the dosage of phosphorus and potassium fertilizer, and some foliar fertilizers can also promote flower bud differentiation. 3. It is possible to buy fake seedlings, which are basically seedlings. Most seedlings are used to cultivate new varieties, and the probability of seedling variation is very high.

Why don't black raspberries bear fruit?

Before planting black raspberries, it is necessary to renovate, weed and disinfect the soil and apply sufficient fertilizer to meet the growth needs of plants. In addition, the new shoots of plants are easy to fall off when they grow to about 50 cm, so they need to be tied with branches. Topdressing once in May and June, with urea15 ~ 20g applied to each plant. It is a shallow-rooted tree species, and it likes wet environment.