July grape heavy fertilizer
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September 07 11:12:26, 2025
In July, grapes enter the fruit enlargement phase and gradually mature. The period one month before harvest is crucial for achieving high quality and yield. Proper management of fertilization and irrigation during this time is essential.
1. Timely fertilization is key to supplying necessary nutrients. It's recommended to apply a top-dressing once during the early stage of fruit coloring, focusing on phosphorus and potassium. You can use a compound fertilizer like potassium sulfate, applying it directly to the soil. Alternatively, you can combine it with foliar feeding when spraying for pest and disease control. This helps improve leaf and fruit nutrition. You may also consider applying a 0.5%-1% potassium dihydrogen phosphate solution 2-3 times. To enhance the storage ability of the grape berries, it’s advisable to spray calcium nitrate fertilizer (such as Tricor Calcium Treasure diluted at 1000-1200 times) continuously in the month before harvest. This significantly increases the calcium content in the grapes, improving their quality and storage capacity, while also helping to reduce the risk of cracking.
2. Water management should be carefully controlled. To ensure good grape quality, irrigation must be strictly limited in the month leading up to harvest to avoid a decline in quality. Before heavy rains, special attention should be given to flood prevention. For varieties that are prone to cracking, consider using mulching or covering with grass to maintain consistent soil moisture levels and prevent sudden changes that could lead to damage.
By following these practices, you can ensure better fruit development, higher quality, and increased resistance to common issues like cracking and disease. These steps not only support the growth of healthy grapes but also help in maximizing the overall yield and market value of your crop.