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Osmanthus fragrans aurantiacus, during the breeding process, sometimes encounters the problem of withered and fallen leaves. At the same time, mastering the correct breeding methods and precautions is crucial to ensuring the healthy growth and good ornamental value of osmanthus fragrans aurantiacus.
First of all, let's delve into the countermeasures for the withered and fallen leaves of osmanthus fragrans aurantiacus. There are various reasons for the withered and fallen leaves of osmanthus fragrans aurantiacus. First, improper watering might be the cause. Excessive water can lead to oxygen deficiency in the roots, affecting the absorption of water and nutrients, thereby causing the leaves to wither; while insufficient watering will cause the plant to lack water, also triggering adverse changes in the leaves.
Secondly, the issue of light cannot be ignored. Direct exposure to strong sunlight may burn the leaves, causing them to wither; insufficient light will affect photosynthesis and weaken the growth vitality of the plant.
Thirdly, the quality and fertility of the soil have a significant impact on the growth of the plant. Soil compaction, barrenness, or inappropriate pH can all lead to the obstruction of root growth and then affect the normal state of the leaves.
Fourthly, the invasion of pests and diseases is also one of the common reasons. Such as leaf spot disease, red spider, etc., will damage the leaf tissue, causing withering and falling. In response to these problems, we can take corresponding measures. For the watering issue, follow the principle of "water when the soil is dry to a certain extent", and maintain a moderate soil moisture. Adjust the light conditions to provide sufficient but not too strong light. Regularly improve the soil to increase its permeability and fertility. Once pests and diseases are found, take effective prevention and control measures promptly, such as spraying pesticides and removing diseased leaves.
Next, let's learn about the breeding methods and precautions of osmanthus fragrans aurantiacus. In terms of breeding methods, the choice of soil is crucial. Osmanthus fragrans aurantiacus is suitable for growing in loose, fertile, and well-drained slightly acidic soil. You can use a mixture of leaf mold soil, garden soil, and river sand for preparation.
The control of light and temperature also requires careful management. Osmanthus fragrans aurantiacus likes sufficient sunlight but needs appropriate shading during high temperatures in summer. The suitable growth temperature is between 18 - 28℃. Pay attention to cold protection and warmth preservation in winter. Watering and fertilization should be regular. Keep the soil moist but not too wet. Increase the watering frequency in summer when the temperature is high and reduce watering in winter. Fertilization should follow the principle of frequent application of thin fertilizer. Apply more nitrogen fertilizer in spring to promote the growth of branches and leaves; apply more phosphorus and potassium fertilizer in autumn to help flower bud differentiation and flowering.
In terms of precautions, regular pruning is necessary. Timely cut off overgrown branches, weak and diseased branches, and overly dense branches to maintain the beautiful shape of the plant and promote ventilation and light transmission. Be careful when changing the pot to avoid damaging the roots. Generally, replace the larger pot and update the soil every 2 - 3 years.
Only by fully understanding the reasons for the withering and falling of the leaves of osmanthus fragrans aurantiacus and strictly following the correct breeding methods and precautions can we ensure the vigorous growth of osmanthus fragrans aurantiacus.