How much is the price of summer black grape seedlings? How to plant it?

Summer black grape is also called black summer, summer black seedless black grape, is an excellent variety of grapes, with strong disease resistance, good yield, early maturity, storage resistance, good taste and other advantages. Generally in late July can mature listed, let's take a look at the summer black grape seedling price is how much money a? How to grow?

How much does a summer black grape seedling cost?

Summer black grape plants grow vigorously, bud germination rate 85%. The rate of branch formation is 95%, and each fruiting branch bears 1.5 inflorescences on average. The budding and branching strength of hidden buds are strong and the high yield is strong. The price of summer black grape seedlings is about a few yuan to more than ten yuan a tree, because height, ground diameter, purchase quantity and so on will affect the price of grape seedlings.

How do summer black grape seedlings grow?

1. Garden establishment

In the selection of grape plantations, flat and open terrain conditions should be selected. In some mountainous and hilly areas, the terrain must be modified to ensure good drainage conditions.

In the selection of soil, select soil with high organic matter content, loose soil, good water permeability and water retention.

Deep ploughing was carried out in the autumn of the year before planting, and then planting ditches were dug according to the row spacing of 3m, and the planting ditches were north-south. The planting ditch is 0.8m wide and 1m deep. Fertilize in the ditch. Apply decomposed manure 4000kg per mu, add urea 50kg, calcium superphosphate 50kg and trace fertilizer 10kg. After fertilization, fill and cover the planting ditch and irrigate it to make the soil sink naturally. After the water is dry, fill the ditch flat.

Before the grape sprouts in spring, select high-quality seedlings and plant them according to the plant spacing of 0.8~1m. Seedling planting depth and its depth in the nursery level, planting too deep or too shallow, are not conducive to seedling growth. After planting, water should be poured once, and plastic film should be covered to keep warm and prevent weeds.

2. Shaping and pruning

Posture selection: summer black should choose high V-shaped frame, small platform frame and T-shaped frame and other excellent frame type.

Winter pruning: usually carried out 2 weeks after defoliation. Pruning methods are mostly short shoot pruning method, that is, only 2~3 buds are left in the fruiting position, and the rest branches are all thinned out. The principle of pruning is to be as close to the trunk as possible to prevent the result from moving outward. When pruning, thin out dead branches, weak branches, over-dense branches, etc., and reserve branches with appropriate positions and strong growth.

Summer pruning: including bud wiping, shoot fixing, topping, accessory shoot treatment, tendril removal and tendril binding.

3. Flower and fruit management

Sparse inflorescence: summer black grape grows vigorously, flower bud differentiation is good, most of the new shoots have more than 2 inflorescences, high-quality, high-quality summer black grape cultivation generally according to the principle of leaving only 1 inflorescence for 1 new shoot (weak new shoots do not have inflorescences) or 2 inflorescences for 3 new shoots to thinning redundant inflorescences. Thinning of inflorescences that are too small, poorly developed and damaged by pests can be carried out in combination with frame surface pruning.

Elongated inflorescence: When most of the orchard inflorescence grows to about 10cm, then the new shoots grow to 7~8 leaves, you can use gibberellic acid to elongate the inflorescence. The method is to dissolve 1g Qibao into 40kg water, add 50ml detergent, fully mix and dip the inflorescence. Under protected cultivation conditions, inflorescences grow longer naturally due to higher temperature, and generally do not need to elongate inflorescences.

Inflorescence shaping: generally 2 days before flowering (big bud stage) to 3 days after flowering (initial flowering, 20%~30% flowers open)(one flower in the cluster is flowering).

In the method of tip shaping, only the tip of inflorescence 5~ 6 cm long was reserved, and the accessory spikes, inflorescence shoulders and upper buds were all thinned out. The method has strict yield control, uniform shape of ripe fruit cluster, size of fruit kernel and coloring, good commodity characters, purple-black or blue-black color, high sugar content and rich flavor, and is a high-quality fruit.

The method of cutting short and dividing spikes is to thin out 3~4 large spikes at the upper part of inflorescence; cut short or pinch short the rest of the spikes by hand, and keep the length of 1~1.5cm; do not cut off the tip of the spike. Finally, the inflorescences are trimmed to grow into cylindrical shapes of about 10cm. The method has moderate yield control, uniform shape of ripe ear and fruit grain, good commodity character, black color, high sugar content and good flavor, and is a high quality fruit.

Fruit preservation treatment: generally carried out 4~10 days after flowering (from full bloom to 3 days after flowering). Gibberellin 25ppm spraying, if the flowering encountered bad weather when the fruit set less, can appropriately increase the concentration.

Ear fixing and ear shaping: ear fixing can be carried out after fruit setting (about 18 days after flowering), which should be early rather than late. 2000 ears per mu can be set, and ears with good ear shape shall be selected, and ears with bad ear shape, late flowering and light yellow fruit color shall be cut off.

The ear shaped by the ear tip shaping method generally does not need to be shaped; the ear shaped by the ear division shaping method is cut short, and the ear length is about 16cm.

Fruit thinning: after ear setting and ear whole, when the fruit grain size is clear (about 22 days after flowering, when the fruit grain size is similar to soybean grain size), fruit thinning shall be carried out to thin out small grains, large grains, abnormal grains, dense grains, pests and diseases, and stunted fruit grains.

Bagging: Bagging can be done after fruit swelling treatment. Select the grape special fruit bag produced by regular manufacturers, bag in sunny days, pay attention to avoid dew and high temperature period.

4. Fertilizer and water management

Fertilization management: summer black grape is a variety that needs a large amount of fertilizer. In order to ensure high yield in successive years, the use of organic fertilizer should be emphasized in management to improve fruit quality and obtain better economic benefits.

The main fertilizer throughout the year is base fertilizer, germination fertilizer, pre-flowering fertilizer, fruit swelling fertilizer, color conversion fertilizer, fruit picking fertilizer and other large fertilizers. In the peak period of grape root growth, attention should be paid to the use of Haijingling biological stimulator to nourish roots and promote roots. At the same time, in addition to root topdressing, foliar topdressing should also be paid attention to in the growth period.

Water management: summer black grapes are generally irrigated with large water before germination and after freezing; 10 days before flowering and young fruit expansion period should be irrigated with small water frequently, once every 5~6 days; watering should be controlled during flowering, maturity and harvest. Other times depend on rainfall.

5, pest control

The diseases and insect pests of summer black grape mainly include downy mildew, white rot, canker, ear shaft brown blight, gray mold, black pox, green bug and so on. The key period should be grasped for control in management.