Jujube is a fruit rich in nutrients, and there are many friends in China who grow fresh jujubes. However, once jujube fruit cracking occurs, it will seriously affect its appearance. Let's learn together about the causes and treatment methods of jujube fruit cracking.
Causes of Jujube Fruit Cracking
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Excessive rainfall during the ripening period: Excessive rain is one of the main climatic factors leading to fruit cracking.
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Excessive application of high-nitrogen compound fertilizers: Excessive nitrogen fertilizers may cause fruits to grow too quickly and crack.
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Imbalanced nutrition: Lack of nitrogen, potassium, calcium, boron, magnesium, and other elements in jujube trees increases the risk of fruit cracking. For example, a calcium deficiency in jujube trees can lead to fruit cracking.
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Improper use of calcium fertilizer: Inadequate amount or improper timing of calcium fertilizer application can lead to fruit cracking.
Treatment Methods for Jujube Fruit Cracking
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Spray plant growth regulators: Spraying plant growth regulators can adjust the ripening period of fruits, avoid the rainy season, and prevent fruit cracking.
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Timely irrigation: Control the timing and amount of irrigation, maintain field humidity, and prevent rapid expansion of fruits after rain following a long period of drought, which could lead to cracking.
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Maintain good tree structure: Keeping the jujube tree's structure in good condition facilitates rapid drying of fruit surfaces after rain, reducing the likelihood of cracking.
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Spray nutrient supplements: Uniformly spray nutrient supplements such as new high-fat films combined with fruit-strengthening agents on the fruit surface to promote fruit development and enlargement, improve fruit quality, and reduce fruit cracking rates.
In summary, fruit cracking not only affects the appearance and quality of jujubes but also leads to the invasion of external microorganisms, which further affects yield. Therefore, timely preventive measures are crucial.
