What is the planting technique of Heidi grape?

Black grapes are what we call black grapes. The skin is thick and crisp, the skin is blue-black, bright, sweet and rich in nutrients. So, what is the planting technique of Heidi grape?

I. Establishment of a garden

Black grape can grow in slightly acidic, slightly alkaline and neutral soil, especially in neutral or slightly alkaline sandy loam with loose soil and good drainage.

II. Colonization

High-quality strong seedlings were selected, and the row spacing of single hedge cultivation was 1x2 meters. After digging the planting hole, the bottom of the hole was filled with farm manure (5000 kg per mu of rotten organic fertilizer) and mixed with topsoil, which was covered with a layer of topsoil, and seedlings were planted in the top layer. Pour water once after transplanting, straighten the inclined seedlings after the water, and water again if there is no heavy rain after 7-10 days to ensure the survival of the seedlings.

III. Field management

1. Fertilizer and water

Heiti grape can be fertilized 3 times in the same year to promote the healthy growth of seedlings. In early June, the plant applied 50 grams of diammonium phosphate and 50 grams of urea. In the first ten days of August, 150 grams of compound fertilizer can be applied to plants. Completed in early October, 100 grams of diammonium phosphate or 150 grams of compound fertilizer can be applied. After shearing in winter, 3000 kg of organic fertilizer and 100kg of compound fertilizer were applied per mu. In the future, according to the growth characteristics, 0.3% potassium dihydrogen phosphate and 0.3% 0.5% urea solution foliar fertilizer can be used in the periods of growing new shoots and expanding berries. Black grape needs a lot of water for its growth. Besides watering enough water at the same time, it can also water enough before sprouting, inflorescence appearance and flowering, after flowering, before berry coloring and soil freezing, according to soil moisture and rainfall.

two。 Shaping and pruning

The black grape should adopt the single-stem and double-arm hedge wall shape, that is, after the seedlings germinate, take off the core and set the stem at 60-80 cm of the main vine, and leave the two lateral buds above to form a secondary shoot when the auxiliary tip is about 60 cm long. When the auxiliary tip is about 60 cm long, leave 50 cm coring, flat tied to the layer of wire, to form arms, layer wire about 60 cm from the ground. The accessory shoots on the arms can leave 5 to 7 leaves to pick the heart, and then 1 to 2 leaves to pick the heart. From now on, when you cut every winter, you only need to cut the fruiting mother branches on your arms. Generally, there are 4-6 fruiting mother branches per arm. The fruiting mother branches are trimmed with short shoots every year, and the rest of the secondary shoots droop naturally.

3. Flower and fruit management

The ear of Heti grape is large and the fruit grain is close, so thinning flowers and fruits should be carried out as soon as possible. The extra large spike, abnormal spike and extra spikelet can be removed at inflorescence stage or post-anthesis grain formation stage. The weight per spike should not exceed 1000 grams, and the spike tip should be removed from overlong spike. At the same time of removing tendrils, wiping buds and thinning branches in summer, the secondary inflorescence was removed, and the small and abnormal grains in the ear were removed, and the tight ear could remove part of the grain.

In addition, the main diseases and insect pests of black grape include downy mildew, black pox, powdery mildew, root cancer, red spider and so on.