Fruit trees are typically perennial plants that grow in a fixed location for many years, continuously drawing nutrients from the soil. If essential nutrients are not regularly replenished, this can lead to an increased risk of pests and diseases, as well as physiological damage that reduces both yield and fruit quality. A common issue is the overuse of nitrogen, phosphorus, and potassium fertilizers while neglecting trace elements. These micronutrients play a vital role in the healthy growth and development of fruit trees.
Zhengbao Si-Ca fertilizer is rich in essential trace elements such as silicon, calcium, magnesium, sulfur, boron, manganese, iron, and zinc. When applied to fruit trees, it enhances fruit ripening, improves color, increases fruit firmness, and boosts sugar content, helping to produce high-quality apples. This fertilizer supports the overall health of the tree and promotes better growth conditions.
The application of silicon-calcium fertilizer on apple trees has several benefits. First, it strengthens tree vigor and increases yield. Apple trees, which are long-lived, tend to deplete soil nutrients over time, especially silicon and calcium, which are often overlooked in traditional fertilization practices. After applying silicon-calcium fertilizer, the growth of the tree becomes more robust. The branches become thicker, leaves larger and greener, and the overall tree appears healthier. This is due to the formation of silicified cells in the leaf surface, which increases resilience and enhances photosynthesis. Additionally, the fertilizer helps release phosphorus in the soil, making it more available for the tree, thus improving fruit quality and reducing the need for additional phosphate fertilizers.
Second, silicon-calcium fertilizer helps improve fruit quality and accelerates early maturation. Apples treated with this fertilizer show earlier coloration—about 3 to 5 days sooner—and mature approximately 10 days faster than those without it. The fruit is brighter, larger, and of higher quality, allowing them to enter premium markets. This improvement is attributed to better nutrient balance and stronger tree health, which leads to more efficient photosynthesis and better sugar accumulation in the fruit.
Third, the use of silicon-calcium fertilizer increases fruit hardness, enhancing its resistance to storage and transportation. Silicon acts as a quality-enhancing element, improving the structural integrity of the fruit. Applying around 5 kg of this fertilizer per apple tree significantly boosts fruit firmness, making it more suitable for long-distance transport. For trees aged between 8 to 15 years, it's recommended to apply about 5 kg of the fertilizer during autumn or winter, mixed into the soil along with other fertilizers for optimal results.
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