Raising flowers and yellow leaves? Pour point ferrous sulfate! Don't worry, it's better not to use it wrong!
Friends who raise flowers with ferrous sulfate will be more familiar, especially friends in the north, most of the potted flowers we raise belong to the southern flowers, like slightly acidic soil, and the water quality in the north is alkaline, and the soil is also alkaline, so many southern flowers are prone to iron deficiency yellow leaves.
For example, the rhododendrons, jasmine flowers, and gardenias we raise are representative of acid-loving plants. So raise these flowers, be sure to prepare some ferrous sulfate for it, so how to use ferrous sulfate? I heard that it is quite dangerous not to use flowers.
First, the role of ferrous sulfate
Ferrous sulfate It is a plant regulator that belongs to a trace element that mainly replenishes iron in the soil. Iron is mainly to promote the photosynthesis of the leaves, so that the leaves are oily green. It is enough to contain a little in the soil, and the amount of use is too much to absorb, which is easy to cause damage to the root system.
Second, the amount of use
The concentration of ferrous sulfate is best to melt in accordance with the ratio of 1:1000, but after melting, it should be watered in the soil immediately, otherwise the ferrous sulfate will gradually oxidize into brown every 10 minutes or so, which is iron oxide, and then watering it will have no effect.
You can put a few drops of vinegar or citric acid on it, so that it will never spoil, you can pour it whenever you want, and the absorption effect is particularly good.
Ferrous sulfate can be poured every two months because it is a trace element that does not require too much. If the plant grows slowly, then it can be used once every two or three months or even half a year.
The best way to use ferrous sulfate is to water it in the soil, try not to spray on the leaves, otherwise some rust spots will remain on the leaves, which will be very ugly. Watering in the soil can be absorbed evenly, and it is not easy to have this problem of yellow leaves.
Therefore, we should not use ferrous sulfate for raising flowers, and it will backfire if we use it wrong.