Early maturing summer black grape cultivation technique

The growth of summer black is strong, the flower buds are well differentiated, and the thick branches can also produce flower spikes. The leaves stand upright, the leaves are dark green, the photosynthetic efficiency is high, the cultivation and management are easy, and the cultivation effect is better. Can be used for cutting or grafting.

The young tree management rack adopts “high, wide and vertical T-frames”. In addition, Xiahe is also suitable for scaffolding cultivation.

Digging and fertilizing before planting and planting, planting according to the distance of 1m planting, planting the root water and covering the mulch.

After the sprouting of the buds, the double buds, the multi-head buds, and the weak buds are wiped off; after the new shoots are formed, the wires are bound to the two sides, and the tips are fixed at a pitch of 15-20 cm.

After the buds are fixed, the buds are released to the early stage of flowering, and the extra large ears and weak spikelets are removed.

The fruit setting rate of the thinning and thinning summer is very high. The auxiliary ear should be removed one week before the flower and several fulcrums under the auxiliary ear, and the tip of the ear should not be licked to maintain the conical ear. After the flower falls and the fruit is stable, the fruit is scattered.

Ring stripping in the first immersion agent, ring stripping on the trunk branch, width 2 ~ 3mm, deep to the xylem, and then taped the wound, can promote the increase of fruit. When the berries are just beginning to color, they are stripped and can mature early.

After the application of the swelling fertilizer, the fully decomposed chicken manure or cake fertilizer should be applied in time after the Xiehua, 200kg per mu, combined with 30kg of ternary compound fertilizer and 10kg of potassium sulfate, applied twice.

When applying coloring fertilizer to the color of the berries, apply 10 to 15 kg of potassium sulfate per acre. In combination with spraying pesticides, add foliar fertilizer 0.3% potassium dihydrogen phosphate or 0.6% Baolifeng 2 .

Controlling the new shoots and growing the fruit after bagging, especially during the coloring period, it is necessary to strictly control the growth of new shoots, which is the key to the management of summer black. Failure to do so will result in slow coloring and delayed maturity. The growth of new shoots can be inhibited by topping or foliar application of chlormequat, but the most important thing is to control the amount of nitrogen fertilizer and increase the proportion of phosphorus and potassium fertilizer. After several years of planting, it can be thinned, expand the canopy, and maintain a balanced growth.

After harvesting the fruit of the autumn-based base fertilizer, at the end of August and the beginning of September, it can be combined with deep-turning per mu, applying 4000~5000kg of decomposed organic fertilizer (such as pig manure), 50kg of superphosphate, and making a high ridge.