What causes small grape berries

Grapes have a relatively high sugar content among fruits and high nutritional value. Usually, the larger the berry, the higher its sugar content. Its commercial value also rises accordingly. But many friends find after growing and harvesting that most of the berries are on the small side and taste rather sour, which seriously affects the quality of the grapes. So what exactly causes the berries to become small? Below, the editor will talk with you about the causes of small grape berries.

1. Variety

There are many grape varieties, and among them there are also varieties with small berries. Varieties with small berries are generally sourer and also have lower yields. Because they carry this gene, which we cannot change, when choosing a variety we must understand it thoroughly and avoid choosing such varieties. We cannot simply believe everything the seller says; some may be lies made up just to make a sale.

2. Nutrient deficiency

A lack of trace elements during grape growth can affect fruit enlargement, such as iron, calcium, and others. It may be that the trace elements in the soil are low or even absent. Moreover, when fertilizing, few people pay attention to supplementing trace elements, which hinders grape enlargement and thereby lowers the sugar content. Therefore, foliar fertilizer should be sprayed on the fruit trees in time to increase the trace element content in the trees.

3. Too many fruits

Many friends think when planting that the more fruits, the better, as it can increase yield, but too many fruits also require more nutrients and usually exceed the load the tree can bear. This leads to poor nutrition: yield increases but fruit quality decreases, and no matter how many fruits there are, it is useless. Fruit trees should be thinned appropriately, and the number of fruits should be controlled within what the tree can bear, so that the fruits can develop better, accumulate more nutrients, and improve their quality.

4. Fertilization

Fertilizing is a skilled job. Grapes need more nutrients to grow, so we also need to topdress appropriately. But many friends, in order to promote early ripening of the fruit trees and increase yield, apply excessive nitrogen fertilizer, which causes the grape branches and tendrils to grow excessively and compete for the nutrients of the fruit. This leads to nutrient deficiency and poor development. There should be a correct fertilization method; the nutrient composition of the fertilizer should be reasonably blended to ensure it can provide all kinds of nutrients needed for grape growth.

5. Management

Field management of grapes is very important. Only by doing a good job in orchard management can the normal growth and development of grapes be ensured. Inspect the orchard frequently, discover various abnormal conditions in time, do a good job in preventing various pests and diseases, regularly cultivate and disinfect the orchard to reduce pathogens and lower the incidence of disease. Sort out the plants to enhance the orchard's air and light penetration, and appropriately pinch the growing tips and remove buds to prevent nutrient loss or nutrient dispersal. Create a good growth and development environment for the grapevines.

The above are the various causes of small grape berries. The main reason is still that everyone did not do a good job in orchard management when planting. They also did not pay much attention to disease prevention and control, and did not regularly shape and prune the plants, which caused plant growth to be affected in various ways. This affects fruit quality. That is all for today's introduction. This article is for reference only, and I hope it is helpful to everyone.