Can you handle the expansion of grapes?

Grapes are widely planted in China, and many farmers generally give grapes an expansion treatment in order to seek high yield and meat quality. But is it really good for grapes to be inflated? Or is it that all grapes are suitable for expansion? Is it safe for grapes to expand? Let's take a look at it.

1. Which grapes are suitable for expansion treatment

In fact, no matter which grapes can be expanded, whether the grapes can be expanded or not mainly depends not on the quality, but on the degree of management and ear size in the planting process. If the management level of the orchard is extensive, it is not suitable to do expansion treatment, because in this way, the nutrition will not keep up, the effect will not come out, and some trace elements will not be able to keep up, which is easy to split the grapes. There are also some peel, ear is too tight varieties are not suitable for expansion, but also easy to cause cracks.

2. What are the advantages of expansion treatment?

The most obvious effect of expansion treatment is that the grape fruit can be enlarged, especially for those varieties that do not have seeds. Like Crisson, before the use of expansion technology, the average fruit is about 4-5 grams, but after expansion treatment can reach 6-8 grams. Summer black before expansion is about 4-5 grams, but after expansion can reach 8-12 grams. The expansion treatment can also turn the seedless varieties into seedless ones. Expansion treatment can not only make up for too small fruit and too little moisture, but also increase merchandise and promote sales.

3. Problems that should be paid attention to in the treatment of expansion.

After the expansion treatment, the cell division of the grape was faster, the fruit was larger, and the growth rate was faster. However, because the expansion treatment has no effect on the pericarp, the growth rate of the pericarp is not proportional to that of the pulp, which will increase the cracking probability of the grape. Therefore, it is necessary to increase the amount of calcium fertilizer at the same time before using expansion agent. The dilating agent can also cause the pedicel to thicken and harden, so use streptomycin to soften the pedicel with water. The amount of expansion agent used in different varieties will be different, but the fertilizer must be increased.

4. The time for the treatment of grape expansion

If the treatment is too early, the thickening and hardening of the fruit stalk will be more serious, it is best to carry on the expansion treatment in the natural expansion period of the grape, if missed, the expansion effect is not obvious. Treat once after half a month; post-anthesis treatment twice within three weeks. But it should be noted that there are many different expansion agents on the market, planting friends should choose according to their own varieties, blind choice may be counterproductive.

Proper grape treatment still has certain benefits to the growth of grapes. Many friends think that the grapes after expansion treatment are not good for their health, but in fact, there is no problem. The grapes you eat now are basically inflated. As the varieties you plant, the weather of the planting place are all different, the above content is for reference only.