Grape Root-Restriction Cultivation Technique Tutorial: A Detailed Explanation of the Latest Methods

I believe everyone has heard of grape root-restriction cultivation. This cultivation method greatly reduces the area of soil tillage, fertilization and irrigation, greatly saves the amount of soil, fertilizer and water used, and can also achieve semi-automation and labor-saving in fertilizer and water management, greatly reducing labor costs, improving fruit quality and increasing economic benefits. So how should grapes be cultivated with root restriction? What are the benefits of root-restriction cultivation? Let's take a look together.

I. What Is Grape Root-Restriction Cultivation

Grape root-restriction cultivation refers to improving and controlling root growth within a fixed space, regulating the vegetative growth and reproductive growth of the aboveground parts, ensuring that more nutrients are transported to the berries, and reducing later fruit cracking. This cultivation method has fewer grapevines per unit, but the yield per mu is more than 10% higher than that of conventional methods, the sugar content of the fruit is also increased by 2 degrees, and the planting cost per mu is saved by about 800 yuan.

II. Key Points of Root-Restriction Cultivation

This cultivation technique means cultivating grapes in soil with extremely high organic matter, thereby ensuring the growth quality and respiration quality of the root system; it is completely different from the fertilizer and water management of conventional cultivation. In conventional cultivation, fertilizer is applied into the soil, and only after being buffered by the soil is the fertilizer absorbed by the roots. In root-restriction cultivation, fertilizer directly contacts the roots, restricting the roots to a certain area, stimulating the development of a large number of absorbing roots, and improving fertilizer absorption and utilization. It is precisely because fertilizer directly contacts the roots that an integrated supply of fertilizer and water must be adopted, and the concentration of the fertilizer solution must be limited to avoid root damage from excessively high concentration. At the same time, the content of harmful substances such as heavy metals in the fertilizer solution must also be limited. In the early stage of this cultivation technique, no basal fertilizer is needed at the base. After 3-4 years of cultivation, the bed should be appropriately expanded while supplying fortified water-soluble organic fertilizer.

III. Grape Root-Restriction Cultivation Techniques

1. Ridge cultivation

This refers to laying microporous non-woven fabric plastic film on the ground, then piling soil rich in organic matter on top in a ridge shape, and then cultivating grapes on the ridge. This method is suitable for areas where the piled soil does not freeze much, but in summer the soil moisture and temperature stability of the root zone are relatively poor.

2. Box and basket cultivation

Box-and-basket structures or brick and stone structures are used as root-restriction cultivation containers, filled with mixed soil to cultivate grapes. The gaps along the lower edge of the box frame where it contacts the soil can allow excess water to drain out to avoid waterlogging. The disadvantages of this method are water shortage in the root zone, unstable temperature, and poor resistance to low temperatures.

3. Pit cultivation

Dig a pit of a certain volume in the ground, line the four walls and bottom of the pit with membrane materials such as microporous non-woven fabric that can allow water to pass through but cannot be penetrated by roots, fill it with nutrient soil, and then plant the tree in it.

The above is an introduction to grape root-restriction cultivation techniques. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.