Can flowers still be planted in the old soil after changing pots?

As a florist living in a city in a reinforced concrete jungle, it is recommended that the source of the soil itself is a big problem. It is not easy to get some free and better soil to plant flowers and plants. Every time I go out, I bring a bag. When I see a little rotten leaf soil under the tree, I hope I can put it back to plant flowers. I think most of the friends who grow flowers understand this kind of mood.

Of course, the old soil after changing pots can be used to plant flowers and plants. Not only can I use it, but I will definitely use it. But when using the old soil, we should do some simple treatment, and then use it to plant flowers, the effect will be better. Next, I would like to talk about the old soil after changing pots, what are the defects and advantages, and how should they be handled and used, hoping to help flower friends who need them.

What are the defects of the old soil?

First, lack of nutrients. This is actually very easy to understand. We can first think about why we have to change the pots for the flowers. Under normal circumstances, there are two main reasons: 1, the original flowers and plants grow in a pot for a year or two, and the nutrients in the soil are not enough to supply the normal growth of flowers and plants; 2, the roots of the original flowers and plants grow vigorously in the flowerpots, have occupied the whole flowerpot, and the roots do not have enough space to grow. When you see the first reason, you will understand that a large part of the nutrients in the old soil after changing the basin have been absorbed by the original host and used for growth. The remaining nutrients should be very little. If it is directly used to plant flowers, it is bound to cause the newcomers to lack the basis of nutrients.

Second, it may carry germs and eggs. Flowers and plants in the original flowerpot, in the long-term conservation, will inevitably produce more bacteria in the soil, these bacteria for the original flowers and plants, can have adapted, but for the latecomers, may be fatal. At the same time, the original flowers and plants in the long-term maintenance process, is likely to leave a variety of harmful eggs. These eggs are likely to become pests of newcomers in the future. Of course, these are only possible, not necessarily, but it is always good to take precautions before use.

Third, the water retention of the old soil will be worse. The old soil in the original flowerpot in the maintenance of the original flowers and plants, in the long-term maintenance process, continuous watering, plants are not only absorbed, the water-retaining substances in the soil will be constantly refined, loss, to put it simply, soil erosion. This will lead to the leftover old soil, the material content of large particles will be much higher, the drainage will be very good, but its water retention will be much worse.

Everything has two sides. After talking about the defects of the old soil after the flowers have changed pots, let's talk about the advantages of these old soil:

First, the first biggest advantage, of course, should be said to be economical. It is a pity that these old soils are thrown away directly. Apart from having less nutrients, they do not have any major defects. In addition, the content of nutrients is only relative, the nutrients in the old soil are diverse, and the nutrients that the original flowers and plants need to absorb are not necessarily what the next generation needs. What it doesn't need may be what the next president needs most.

Second, this kind of old soil will be relatively looser and have better drainage. As mentioned in the first section of this point, most of the remaining soil erosion are large particles, and the drainage will be much better. In addition, in the maintenance process of the previous flowers and plants, there will be a lot of necrotic capillary roots and fallen leaves, which have rotted and become high-quality organic fertilizers in the long-term maintenance process. It has a good effect and effect on soil improvement, which will make the old soil more loose and contain a small amount of organic matter.

After talking about the advantages and disadvantages of the old soil, let's talk about how to use the old soil correctly.

First, of course, the first step is to disinfect and sterilize it and kill the eggs. The most simple and effective method is exposure, if there are outdoor conditions, you can put the old soil in the sun for three to five days, during several times, germicidal and insecticidal effect will be better. The second simple method is to use germicidal insecticides to make eliminate virus. In the old soil, a good effect can be achieved by directly mixing an appropriate amount of carbendazim powder, small white medicine, Tachongdan and so on.

Second, mix the new matrix. After sterilization and disinfestation, the old soil can be directly used to grow flowers and plants. at this time, different kinds of new plants need to be mixed according to the structure of the old soil and the types of new plants. For example, planting succulent plants can be mixed with some granular materials (perlite, vermiculite, etc.), and then mixed with a small amount of peat soil. For example, planting Cymbidium can be mixed with some peat soil. The ultimate goal is to achieve the type of plant material needed for new plants, and to achieve the balance of water retention, drainage, looseness and nutrition. That is, it makes use of the old soil, reduces the use of new soil, and can adapt to the growth needs of new flowers and plants.

Conclusion: the old soil after changing pots can of course be used to plant flowers and plants. But when using the old soil, we should do some simple treatment, and then use it to plant flowers, the effect will be better. Disinfection and sterilization, killing insect eggs is the first step, the most simple and effective method is exposure. The second step is to add an appropriate amount of new soil to meet the growth needs of newly planted flowers and plants.