In the process of transplanting sheds, it is often found that the eggplant has a "sweet water", which is not a good sign! What is the cause? How to prevent it?
The eggplant fruit will show a relatively large area of ​​cockroaches. After the cockroach is cut open, the flesh will be found in water stains. The lightly pinched fruit will have juice flowing out, and the juice will be slightly sweet. This is not difficult to conclude, this is the accumulation of carbohydrates in the fruit, that is, sugar. However, because the cell wall of the pulp cells is weak, the intracellular solution flows out after the cells break, and the water-stained condition appears.
What are the factors that lead to this situation?
From the root point of view, the reason why the cell fluid overflows is because the cell wall is not strong enough. The shortage of calcium that constitutes the cell wall is such a factor. Calcium itself is inferior in plants, especially when nitrogen and potassium are high, it is easy to cause imbalance between nitrogen-calcium ratio and potassium-calcium ratio. Excessive nitrogen and potassium control calcium reception and movement. This leads to a shortage of calcium.
In actual production, the farmers are rushing to apply a large amount of fertilizer with high nitrogen and potassium content at the peak of the harvest, and it is necessary to bring water and water. Excessive amounts of nitrogen and potassium in the soil inhibit calcium reception (the same in plants). Under conditions of insufficient calcium to form a strong cell wall, carbohydrates continue to accumulate and transport to the flesh cells, causing cell breaks. , cytosol overflow.
From a certain point of view, the principle of umbilical rot is also the same, except in the environment of insufficient supply of carbohydrates, the cells are necrotic after breaking, and the lesions appear in the umbilicus of the fruit.
Expert tips:
In the future weather environment, we must pay attention to the compensation of calcium fertilizer to prevent the occurrence of these conditions. Usually, calcium supplementation should be carried out from two directions:
One is to apply calcium-containing fertilizer.
The second is foliar application. This is the only way to supplement calcium when the soil is not balanced. And the choice of calcium should be chelated calcium fertilizer, such as calcium sugar alcohol, calcium lignin and so on. The focus of spraying should be on growth points, flowers and young fruits, which require large amounts of calcium and are easily absorbed. When applied with the right amount of boron fertilizer, it can improve the reception and operation of calcium, thus reducing the risk of calcium deficiency.
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