Detailed Explanation of Key Points for Liaofeng Grape Cultivation Techniques

Liaofeng grape is a Vitis vinifera variety with good commercial characteristics and belongs to the mid-season ripening category. Its berries are round or oval, the skin is blue-black and colors easily, and the bloom is thick. Today we introduce Liaofeng grape cultivation techniques.

1. Planting

Apply decomposed farmyard manure, 12000 jin per mu, place the prepared seeds into the holes, then cover with soil. Later, use a two-tooth hook to loosen the root system in the surface layer of the trench, reduce the root mass, control excessive vigour, and keep the straw curtain cover in place to prevent cold damage.

2. Pinching

Before flowering, leave two leaves above the cluster and pinch heavily to prevent flower and fruit drop; for nutrient shoots, leave 6-8 leaves and pinch. Each fruit cluster should retain more than 1-2 leaves, and ensure a reasonable match of leaf ages.

3. Shaping

Before flowering, remove 1-2 larger secondary clusters and remove a small portion of the cluster tip. After fruit set, thin out small berries, deformed berries, and diseased or damaged berries, ensuring 50-60 berries per cluster.

4. Bagging

Before bagging, spray a broad-spectrum fungicide to prevent grape downy mildew and white rot, and bag immediately after the spray dries. The paper bag should be fixed to the new shoot, not wrapped around the cluster stem, to prevent the fruit cluster from being blown off together in strong wind. Do not remove the bag before harvest; the fruit can reach the blue-black standard inside the bag, and harvest can be delayed appropriately to improve fruit coloration and sugar content.

5. Fertilizer and Water Management

In early spring, control the bud-promoting fertilizer and spray one compound foliar fertilizer. After fruit set and during the fruit enlargement period, spray 0.3% urea on the leaves twice in succession, and apply soybean cake and compound fertilizer as topdressing, with 0.8 jin of soybean cake per plant and 0.3 jin of compound fertilizer per plant.

6. Pest and Disease Control

When training onto the trellis, apply 5 degree lime sulfur mixture, including fungicides, insecticides, and foliar fertilizer. This effectively prevents the plants from being infected by pests and diseases and increases yield.

The above is the relevant introduction to Liaofeng grape cultivation techniques, and we hope it is helpful to fruit growers.