Cultivation techniques of Xiahei Grape in greenhouse

When I was a child, there were often some wild grapes in my father's unit, climbing up the branches. When it was time to bear fruit in summer, clusters of red grapes hung on the trees. How beautiful! Today, let's learn how to grow grapes in a greenhouse.

Cultivation techniques of Xiahei Grape in greenhouse

The main results are as follows: 1. Hedge cultivation, natural fan-shaped pruning, row spacing 1.7m, plant spacing 0.8m. Where there is a lot of rain, the first wire above the ground is more than 80cm away from the ground to prevent rain splashing and sediment pollution. This type of frame is conducive to making full use of land, wind and light, especially in the early morning.

2. Pruning ears and thinning fruits. Summer black grape ear neat, more unambiguous shoulder, individual double spike. It is suggested that if there are two ears, one should be repaired. If the ear is too long, pinch off the ear tip 10 days before flowering. On average, there is only one ear for each fruiting branch, that is, two ears can be left on the top of the shelf, one ear on the medium growth shoot, and no ear on the weak branch and culture branch. The seeds of summer black fruit are closely planted, so it is recommended that the fruit be thinned. Artificial fruit thinning, time-consuming, can be in full bloom fruit-setting period to drink water, or combined with fungicides, consciously spray the ear to promote its moderate drop. Or shake or hit the tree moderately during the flowering and fruit setting period, which can also play the role of thinning flowers and fruits.

3. Expansion treatment. At present, large grape is still preferred in the domestic grape market. The enlargement of the fruit is beneficial to increase the yield and improve the commodity value. Xiahei grape grows naturally and the fruit is small, which is the commonness of seedless grapes, so it is recommended to carry out expansion treatment. 15 days after flowering, dip or spray the ear with 45~50mg/kg gibberellin solution and repeat every 12 to 15 days. Or when the seeds of soybeans are large, use 45mg/kg gibberellin solution to spray the 10ml of pixiuron per 1~1.5kg or dip it in the ear, once.

4. Fruit bagging. Grape bagging has many benefits, such as disease prevention, pest prevention, bird pest prevention, pollution prevention, yield protection and quality protection. The berries produced are not only beautiful, but also taste good. It is suggested that whether it is field production or greenhouse cultivation, strive for a full set of bags.

5. Water and fertilizer management. Like other grape varieties, it is suggested that organic matter fertilizer should be re-applied in the production of Xiahei grape. After that, it expanded outward along one side of the planting ditch every other year, and applied organic fertilizer once. Quick-acting nitrogen fertilizer can be applied once in spring to accelerate budding and promote the growth of large ears. The expansion fertilizer was applied once with high nitrogen ternary fertilizer. Apply potash fertilizer once before fruit ripening. If the amount of fertilizer is not good, it should be decided according to the soil fertility, yield and tree potential.

6. Scientific winter scissors. Winter shearing is very important and is directly related to the yield of grapes in the following year. Xiahei grape has good flower bud differentiation, high germination rate and high fruiting branch rate. Therefore, the general tree potential is mainly short shoot pruning, while strong branches can be pruned in the middle. The hedge cultivates an adult garden with natural fan-shaped pruning.

Key points for attention in greenhouse cultivation

The main results are as follows: 1. There must be enough space for growth if there is no close planting.

2. The gibberellin treatment technology must be well mastered, otherwise, the fruit is too small and the yield per unit area is too low to earn money.

Pay attention to the main points when the summer black grape is on the shelf

1. Tie the tie rope tightly on the first layer of steel hinge so that it can not be moved easily.

2. tie the tree first, and it is better to have no spare space on the shelf surface. if the tree is a little full and too long, you can refer to each other, because it is the first year, increase the number of effective branches and ears as much as possible.

3. Be loose when bundling the branches, leaving room for the thickening of the back branches. Too tight will cause strangulation, and it is easy to break when there is a strong wind.

4. The trunk must be bundled with steel to form an oblique bow of 30-40 degrees to avoid a straight bend of nearly 90 degrees between the trunk and steel. Try not to have a large bow on the part of the trunk parallel to the steel hinge.

5. Before April 20, generally do not rush to thinning buds and setting ears. After wiping buds below 50 centimeters in the trunk, the buds above should not move as much as possible, taking into account the meteorological disasters that are easy to occur in our area before April 20, mainly late frost and strong winds.

The advantages of summer black grape

1. Early maturity: it takes about 100-115 days from sprouting to fruit ripening, which is a high-quality early-maturing variety.

2. Natural seedless: triploid is naturally seedless and needs to be treated with panicle pulling, fruit protection and expansion.

3. Good quality: strong strawberry aroma, loved by the majority of consumers.

4. Vigorous growth, good disease resistance and good flower bud differentiation.

Do not look at the small grapes, want to taste delicious, pay a lot of painstaking efforts. Do you understand so many problems that need to be paid attention to when cultivating? I hope the editor's article can help you to grow delicious grapes.