A deficiency in boron can lead to weak and sparse flower clusters, poor seed development, or even the production of small, seedless fruits. To prevent and manage this issue, it's recommended to increase the use of organic fertilizers, such as grass-wood ash or decomposed rice straw. During the growing season, applying 30 grams of borax mixed with an appropriate amount of water can help improve the condition. It's important to ensure proper soil moisture to enhance nutrient uptake.
Zinc deficiency is common in sandy soils, making plants more susceptible to zinc deficiency. When grapes lack zinc, their clusters tend to be loose, with many small, seedless berries that are hard to mature and prone to corking. To address this, applying 0.25 kg of zinc sulfate per acre is typically effective. Additionally, regular soil testing can help monitor nutrient levels and allow for timely adjustments. Incorporating compost or other organic matter into the soil can also improve its ability to retain essential nutrients like zinc over time.
Proper irrigation and balanced fertilization are key components of maintaining healthy grapevines. Farmers should observe the plants closely and adjust their management practices based on visual symptoms and soil test results. By taking a proactive approach, they can avoid nutrient deficiencies and ensure better fruit quality and yield.
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