When is the secondary expansion period of grapes?
If you want to understand the small experience of grape cultivation during the secondary expansion period, the following article will provide you with a detailed answer.
When is the secondary expansion period of grapes?
The secondary expansion period of grapes occurs from July to August every year. This is also the stage of coloring and ripening. You should fertilize it properly to prevent fruit cracking. The specifics are as follows:
Time and fertilization methods for the secondary expansion of grapes
Most grape varieties enter their secondary expansion period from July to August. After grapes enter this period, they will slowly start to color and ripen. This is also the peak period for fruit cracking. We should pay attention to preventing it and fertilize properly to increase the sugar content of the fruit.
When fertilizing grapes at this time, in addition to applying a reasonable amount of phosphorus and potassium fertilizers, you should also appropriately add calcium fertilizers. The function of calcium fertilizers is to enhance cell toughness, increase the flexibility of the fruit skin, and reduce the chance of fruit cracking.
Each grapevine needs 100-200 grams of phosphorus and potassium fertilizers and 10-20 grams of calcium fertilizers. Make a small trench about 20 centimeters away from the grape roots and evenly spread the fertilizers into it.
Editor's comments:
After grapes enter the second expansion period, it is a crucial time for coloring and ripening. Fertilization should involve a reasonable application of phosphorus and potassium fertilizers and the addition of appropriate amounts of calcium fertilizers. Proper fertilization can not only increase the sweetness of grapes but also reduce the chance of fruit cracking. Additionally, when grapes are in this stage, it is also important to carry out pest and disease control.
The above is all the content about when the secondary expansion period of grapes occurs. Have green plant enthusiasts understood it?