Latest Key Technical Points for Field Management of Summer Black Grapes
Summer Black grape is a high-quality grape variety with various advantages such as strong disease resistance, high yield, early ripening time and good storage quality. It now has a very large planting area in our country. As the market demand for Summer Black grapes has grown, the requirements for yield have also become higher and higher. To achieve a good yield, doing a good job of field management is very important. So today the editor brings you the field management techniques for Summer Black grapes. Let's take a look together!
1. Water and Fertilizer Management
When establishing the vineyard, we should apply sufficient farmyard manure, and then apply fertilizer once every year thereafter, controlling the amount according to the planting area. After the seedlings grow about 8 leaves, topdressing can begin, about once every half month. In the early stage, nitrogen fertilizer is mainly used, and in the later stage, phosphorus and potassium fertilizer should be emphasized, until topdressing stops in September. If the rainy season is encountered during planting, drainage work must be done well, and drainage ditches should be dug to prevent water accumulation from rotting the roots. However, attention should also be paid to supplementing water during the dry season. Both the amount of water and fertilizer should be guaranteed to be within the demand range of Summer Black grapes.
2. Fruit Bagging
Fruit bagging is a very important fruit protection measure when growing fruit. So growing grapes is no exception. Reasonable bagging work can effectively prevent and control diseases and pests and reduce pollution, among other things. It is of great help to the yield and quality of Summer Black grapes. When bagging, we should pay attention to choosing the bags well. The bags should ensure strong permeability and good drainage capacity. If the bags are too closed off, water accumulation can easily lead to fruit rot. Then we should master the bagging time and bagging method well to ensure yield and improve planting benefits.
3. Fruit Enlargement
Fruit enlargement treatment is also a very important management task for growing Summer Black grapes. If fruit enlargement is not done, the berries of Summer Black grapes will be small, and their commercial value will also be affected and decline. Fruit enlargement work is generally carried out about half a month after the flowers fade. The main enlargement agent is gibberellin, and the spraying target is the fruit cluster. Then after about half a month, spray and repeat once. Alternatively, when the berries grow to the size of soybeans, gibberellin can be used to dip the fruit clusters.
4. Disease and Pest Control
Disease and pest control work for Summer Black grapes is also very important. First, we need to do a good job of preventing and controlling diseases such as black pox and downy mildew. Especially in the first year, when the seedlings grow 3 leaves, spray a fungicide about once every 9 days for disinfection. At least two or more fungicides should be selected and used in rotation to prevent the pathogens from developing resistance and losing the disease control effect. Finally, we should frequently observe their growth conditions. When abnormal situations occur, we should promptly find out the cause and then take corresponding measures.
The above is a brief introduction to the field management of Summer Black grapes. Field management is very important, so everyone must pay close attention to it. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!