What are the latest methods to increase grape yields?
China's grape market is truly spectacular. Every grape production season, grapes can be seen everywhere in the streets and alleys, and they sell very well. However, in recent years, many external factors have led to reduced grape yields and lower quality. So today, Qinnong Network is here to teach everyone a few tricks to make the grapes in your vineyard dazzling and crystal clear. Now follow the editor and take a careful look.
1. Select good varieties
To increase grape yields, the grape variety is the foundation of high yield, so we need to choose the variety with excellent resistance that is most suitable for local growth. Only in this way can we fundamentally increase grape yields. There are now very many grape varieties, at least a hundred or so. So how do you distinguish the pros and cons of grape varieties? Here is a little knowledge: you need to observe the roots of the grape seedlings to see whether the root system is well developed and looks very vital; next, observe the branches and leaves of the seedlings to see whether the color is uniform and observe whether the moisture in the stems is relatively sufficient; finally, see whether the climate and environment of the planting site are suitable for the variety. So selecting seeds is actually very simple.
2. Scientific fertilization and watering
Grapes are very particular about fertilization and watering. Apart from base fertilizer, grapes have three key fertilization periods. We must fertilize at the right time and in the right way. The first fertilization is during the germination period. In order to make the seedlings grow new branches and prevent the new branches from growing excessively, we generally use an appropriate amount of farmyard manure mixed with a little phosphate fertilizer and compound fertilizer, with the total amount controlled at around 1,000 jin. If the soil fertility is insufficient, you can also add 5 jin of nitrogen fertilizer and 5 jin of urea. The second fertilization is after the grape flowers fall. At this time, if fruit set has succeeded, then we need to fertilize to promote fruit growth. This fertilization is mainly nitrogen fertilizer, mixed with a small amount of phosphate fertilizer and potassium fertilizer. The last time is when the fruit has grown almost fully and begins to change color. If we want the grapes to have a relatively uniform color and look very bright, then we need to apply phosphate fertilizer and potassium fertilizer. Every time we fertilize, we must also water. Watering has two purposes: the first is to promote growth, and the second is to avoid burning the grape seedlings caused by fertilizer, by diluting it.
3. Branch and leaf management
Branch and leaf management is a very important step in increasing grape yields. In order to prevent grape seedlings from growing too vigorously, we need to prune some branches and leaves. Of course, it is not as simple as just cutting them off. We need to prune according to the growth condition of the main seedling of the grape. Generally, we keep the relatively strong branches and leaves, cut off the poorly growing ones or those with disease, and after pruning we also need to apply a layer of medicine to prevent infection by pathogens and invasion by disease.
4. Build trellises and sheds
We all know that grape planting definitely requires building trellises, but this is not a simple matter. Generally, it is best to build the trellises in a chevron shape, then use wire to connect each trellis. The direction of the trellises must be regular and traceable. Finally, guide the grape seedlings onto the trellises and let them climb and grow along the wire. If irregular growth appears, follow-up adjustments are needed. Each adjustment must be done gently, and after fruiting, do not move the grape seedlings easily.
5. Flower and fruit thinning
The growth patterns of grapes are all different, so sometimes in a vineyard you will find that each grape seedling is densely covered with flowers and covered with small grapes. At this time, it is not the moment to be happy, and you should not feel reluctant either. You need to appropriately remove some of the other fruits in the densely fruited areas, following the principle of preserving the large and the good, so as to maintain normal growth.