Key Points for Winter Management of巨峰 Grapes
Today, the editor will elaborate on the key points for winter management of 巨峰 grapes in the aspect of green plants and flowers, and the site editor will introduce to netizens next.
Key Points for Winter Management of巨峰 Grapes
In winter, the leaves of 巨峰 grapes fall off one after another. It may seem fine, but in fact, winter management of 巨峰 grapes is very important, as it relates to the bud differentiation and yield of the grapes the following year. Let's take a look at the key points for winter management of 巨峰 grapes.
Apply Sufficient Basic Fertilizer
After the autumn harvest, a large amount of nutrients are consumed, so in winter, it is necessary to apply sufficient basic fertilizer in time to replenish the nutrients consumed and lay the foundation for high yields in the next year. The basic fertilizer should mainly consist of decomposed manure and be supplemented with chemical fertilizers. Generally, apply 7-8 kilograms of decomposed organic fertilizer and 10-20 kilograms of potassium chloride or sulfate per mu. It is not suitable to add fast-acting nitrogen fertilizer to the basic fertilizer.
Winter Pruning
The pruning of 巨峰 grapes is different from other grape varieties. Young 巨峰 grapes should be pruned lightly and allowed to grow long, otherwise, the shedding of flowers and fruits will be aggravated the following year. After pruning, the branches and vines should be tied to the surface of the trellis according to the principle of timely tree shaping, and should not be tied again when spring comes.
Deep Soil Cultivation
When applying basic fertilizer, the soil can be deeply cultivated once to loosen the soil, promote root growth, and clean the drainage system. It is best to sprinkle some organic fertilizer on the deeply cultivated soil, which is very beneficial for root and plant growth. However, for heavy clay soil, it should be improved through deep cultivation. If conditions allow, some medicinal residue, straw, and rice husk can be applied during deep cultivation, which can increase the porosity and permeability of the soil and inhibit the growth of weeds.
Cleaning the Garden
The main task of cleaning the garden is to clear the leaves and weeds and burn them in a centralized manner. Note that the leaves should not be used as fertilizer to avoid increasing the number of diseases and pests in the soil. Then, the entire garden should be sprayed with a 5-degree lime sulfur mixture, and the branches of 巨峰, stakes, and ground should be sprayed comprehensively. By the end of February, when seedlings emerge, spray again with a 3-degree lime sulfur mixture for double the disease prevention effect.
Winter Irrigation
For orchards with severe drought or rapid infiltration of organic fertilizer, winter irrigation can be carried out to accelerate the dissolution of organic fertilizer moisture, speed up fertilizer infiltration, and maintain soil moisture to improve germination rates. It is recommended that winter irrigation should be done by trench irrigation, where water can naturally drain after overflowing on flat ground. If the ground water level is high and quickly rises, winter irrigation is not needed.
The above are the key points for the winter management of 巨峰 grapes, hoping they are helpful to you.
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