Excessive concentration of liquid fertilizer often leads to the yellowing of flowers and leaves, and even the entire plant. What is the reason for this? Because under normal circumstances, the concentration of plant root hair cell liquid is larger than the concentration of soil solution, the osmotic pressure of the two is different. At this time, the soil solution can continuously penetrate into the root hair cells, and the root hair can absorb water and nutrients from the soil, and supply Flower growth and development. If the concentration of the liquid fertilizer is too high (the concentration is greater than the concentration of the cell liquid), the opposite phenomenon occurs, that is, the cell liquid penetrates into the soil solution, causing the root cells to lose water, causing the separation of the walls, and causing the plants to wither and die in severe cases. The reason is similar to that of pickled vegetables in the family. Put the salt and vegetables into the water tank. It doesn't take long for the salt water to fade and the vegetables become wilted. This phenomenon often occurs when there is too much fertilizer, and a similar phenomenon occurs if the liquid fertilizer is too thick. Therefore, the concentration of potted fertilizer solution should not be too high, generally about 0.1%. It is also necessary to dilute 5 to 10 times when applying the liquid fertilizer.
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