Is nitrogen related to fruit sweetness?
In the current agricultural production, the color and sweetness of fruits are the key to their price. So how to increase the sweetness of fruits? Some farmers friends asked if the application of nitrogen fertilizer was related to sweetness. Today we will take a look at the relationship between the two.
Fruit sweetness is determined by the amount of sugar in its cells, but the accumulation of sugar is intimately related to chemical fertilizers, especially nitrogen fertilizers. Therefore, the sweetness of fruits is related to nitrogen fertilizer. Twenty-eight days after Xiehua from the fruit tree, the cells of the young fruit were in a break-up condition. The cells were filled with cytoplasm containing protein as the main component. After that, the cells broke off and stagnated. At this time, the cytoplasm gradually adheres to the periphery of the cell membrane, forming a large vacuole in the center, which is the vacuole, which is the main occasion for the fruit to store starch, organic acids and other substances. When the fruit matures, the vacuole is almost full of starch, and it is gradually broken down into fructose, glucose and sucrose, so that the sweetness of the fruit increases sharply.
If nitrogen fertilizer is applied too much, it is beneficial to the formation of protein, but it will increase the cytoplasm in the cell, causing the delay of the mononuclear side of the cytoplasm and the corresponding decrease in the vacuole volume, which directly hinders the storage of starch. At the same time, excessive application of nitrogen fertilizer will make the new shoots of the fruit tree flourish and consume a large amount of sugar produced by the leaves in terms of growth, reducing the transport to the fruit, which will affect the sweetness of the fruit.
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