If the concentration of liquid fertilizer is too high, the branches and leaves of flowers will be withered and yellow, which will lead to the death of flowers. Therefore, we should be very careful when we apply concentrated fertilizer to flowers. Under normal circumstances, the concentration of plant root hair cell solution is higher than that of soil solution. Because the osmotic pressure of the two solutions is different, the soil solution constantly penetrates into the plant root hair, so the root hair can absorb water and nutrients from the soil solution. However, once the concentrated fertilizer is applied, the concentration in the soil solution will be higher than that of the plant root hair cell, at this time, the reverse osmosis phenomenon, cell solution, will appear. Infiltration into the soil solution causes water loss in the cells, resulting in the separation of the substance wall and the withering and death of plants. Use retting liquid fertilizer will also appear similar phenomenon.
First of all, the concentration of chemical fertilizer should not be too high, should be controlled at about 0.1%. When using retting liquid fertilizer, it is also reasonable to dilute the concentration by 10-15 times.
