Detailed Explanation of Key Points on Red Globe Grape Cultivation Techniques

Red Globe grape is a grape with thick skin, crisp and sweet flesh, widely planted because of its high yield and good storability. So what are the Red Globe grape cultivation techniques?

1. Land selection and preparation

Red Globe grapes should be planted in sandy loam or loam plots rich in organic matter, with soil pH neutral or slightly acidic, avoiding low-lying waterlogged areas. Then deep plow the land, dig trenches according to the measured row spacing, with width and depth greater than 50 cm, and store the plants with topsoil and subsoil separately. After digging the trenches, spread corn stalks and other crops rich in organic matter at the bottom of the trench to a thickness of 10 cm, and add 10 kg of urea per mu to help promote the decomposition of organic matter. Then spread 5000 kg of farmyard manure and 50 kg of compound fertilizer, applying according to actual needs, mix evenly with topsoil and fill into the trench bottom, then cover with subsoil, irrigate to settle, and loosen the soil to preserve moisture.

2. Planting

(1) Planting time: generally around April 10, with May 10-25 being suitable for green seedlings.

(2) Planting method: use small trellises, with grape plant and row spacing of 1-1.5×3 m, planting about 200 plants per mu. For hedge trellis cultivation, grape plant and row spacing is 1.5-2 m×1.5-3 m, planting 111-296 plants per mu.

(3) Planting method: first dig a planting trench 80 cm square, apply 5000-10000 kg of farmyard manure per mu, mix with soil in layers and backfill, then plant the seedlings. In the north, spring planting is mostly used, generally field planting can be carried out in mid-to-late April. Before planting, use a sharp knife to remove the wrapping material outside the graft union (after the grafted seedlings survive, promptly remove the rootstock shoots sprouting from the rootstock below the graft union to ensure variety purity and growth vigor), bury the planted seedlings to the root collar and water thoroughly, then bury fine soil to form a small mound around the seedling to retain moisture and prevent drying, so as to promote early sprouting.

3. Post-planting management techniques

(1) Cold protection: The time for burying soil for cold protection of Red Globe grapes is after winter pruning and before the soil freezes. Generally, the method of covering soil over the vines is used. After winter pruning, clear dead branches and fallen leaves from the orchard and use 3-degree lime sulfur mixture to disinfect the seedlings and trellis materials.

(2) Pruning: The winter pruning period for Red Globe grapes starts in mid-November and ends in early to mid-December. In the first year of winter pruning, all secondary shoots on the main vine are removed. Vigorous secondary shoots exceeding 0.8 cm in thickness can be short-pruned to 3-4 buds. The main vine pruning cut should be 0.8-1 cm in thickness, well matured, with the whole tree height around 1.5 m, and it can bear fruit in the second year.

(3) Fertilization: Fertilization is mainly organic fertilizer, with foliar fertilizer sprayed as needed during the growing season. Generally, 5000-10000 kg of farmyard manure, pen manure, green manure, etc. per mu, and reasonable topdressing should be noted, with 3-4 topdressings per year.

(4) Bagging: When the berries reach the size of a bean (about 20 days after flowering), first spray the berries treated with a swelling agent once with 1000 times thiophanate-methyl, and after the liquid dries, use special grape fruit bags, or homemade newspaper bags, to cover the fruit clusters. Remove the bags several days before harvesting, which can avoid damage to the fruit clusters from pests and diseases and improve marketability.

(5) Pest and disease control: Before and after flowering, prevent gray mold and rachis blight; after fruit set, pay attention to the occurrence and control of powdery mildew; during the fruit swelling period, prevent white rot. After removing the bags, spraying the fruit clusters with 1500 times Bilü No. 2 liquid has a very good sterilization and protection effect, and will not cause phytotoxicity or spray spots.

Overall, Red Globe grapes are still quite easy to cultivate. As long as you select good land, dig good field beds, then plant the seedlings well, and do a good job with water and fertilizer, pruning, bagging, and other work, it will be fine.