What are the advantages of grape root-limiting cultivation? Technical details are attached.

What is root-limiting cultivation? It refers to in a fixed space, through the control of root growth, to regulate the vegetative growth of the aboveground part, as well as reproductive growth, to ensure that more nutrients are delivered to the fruit and reduce the fruit cracking in the later stage of the grape. What are the advantages of grape root-limiting cultivation? What are the specific cultivation techniques?

First, why should the grape be limited to root cultivation?

Grape root-limiting cultivation technology, which refers to in a fixed space, through the control of root growth, to regulate the vegetative growth of the aboveground part, as well as reproductive growth, to ensure that more nutrients are delivered to the fruit and reduce the late fruit cracking of the grape. The advantage of this operation is that the whole system can control humidity, fertilizer, insect, yield and quality. With this grape root-limiting cultivation technique, there are fewer vines cultivated per unit, but the yield per mu is more than 10% higher than that of conventional planting, the sugar content of quality is increased by 2 degrees, and the cost can be saved by 800 yuan per mu.

1. Root-limiting cultivation is to cultivate grapes in soil with ultra-high organic matter to ensure root growth quality and respiration quality.

2. the water and fertilizer management of root-limiting cultivation is completely different from that of conventional cultivation. Conventional cultivation fertilizer is released in the soil, which has the buffering effect of soil, and root-limiting cultivation means that the fertilizer is in direct contact with the root system.

3. Under the condition of limited root cultivation, fertilizer must be supplied by integrated supply of fertilizer and water, and the concentration of fertilizer solution and the content of heavy metals and other harmful substances in fertilizer solution must be limited.

4. there is no need to apply farm manure in the early stage of root-limiting cultivation, but after three to four years, the plate should be enlarged properly and the supply of water-soluble organic fertilizer should be strengthened.

5. Root-limiting cultivation limits the root system to a certain area, promotes a large number of absorbed roots, and improves the absorption and utilization rate of fertilizer.

2. root-limiting cultivation techniques of grape

In fruit trees, root-limiting cultivation mainly includes ridge type, box basket type and pit type. Here is a brief introduction to the grapes that are widely used.

1. Ridge cultivation

Refers to the ground covered with microporous non-woven cloth or slightly raised plastic film (to prevent stagnant water), and then accumulate nutritious soil rich in organic matter in the form of soil ridges or mounds, and plant crops on the ridges. As the surrounding surface of the soil ridge is exposed in the air, and there is an isolation film on the bottom surface, the root system can only grow in the ridge.

This method is easy to operate and suitable for application in warm areas where there is no soil freezing in winter, but the stability of soil moisture and temperature in the root zone is poor in summer.

2. Box cultivation

The box frame structure or masonry structure was used to set up the root zone limited cultivation container to fill the mixed soil to cultivate grapes. Excess water can be left under the box along the gap in contact with the soil to avoid stagnant water.

It is suitable for application under the condition of protected cultivation, but its disadvantage is that the moisture and temperature in the root zone are unstable and the resistance to low temperature is poor.

3. Pit cultivation

Dig a certain volume of the pit below the ground, lay microporous non-woven cloth on the four walls and bottom of the pit and other diaphragm materials that can permeate but the root system can not penetrate, fill it with nutritious soil and plant trees in it.

The variation of moisture and temperature in the pit root region is small, which can save irrigation water and can be used in the cold northern region in winter.