Not all soils are suitable for plants to survive, do you know which soils will be not grassy ?

Not all soil is suitable for plants, and plants cannot grow in soil polluted by heavy metals, strong acidic soil, and strong alkaline soil.

How do you say this? Places that are not suitable for plants, such as saline soil. It's just that it's too alkaline, so it's not suitable for plants to survive, and the other is the desert. There is a lack of water in the desert, and there is no way for plants to survive properly.

The alkalinity of the soil is too large, or it is too acidic, it may cause plants to not grow, because plant growth needs nutrients, but also needs the corresponding pH, too acidic or too alkaline are not suitable for plant growth, of course, some plants are suitable for growing in an acidic environment, some plants are suitable for growing in an alkaline environment, but they can tolerate the degree of pH is limited, if the soil is too acidic or too alkaline, it is difficult for plants to grow.

Normal soil is generally black or yellowish-brown, and after more than ten years of continuous planting, green or red moss begins to appear in the soil. However, in recent years, due to the irrational application of chemical fertilizers and pesticides, moss will occur after 2-3 years of continuous planting. As salinity accumulates on the surface of the soil, the color of the moss gradually changes from light green to dark green and dark green, followed by purplish-red.

Once you find that this is the case in your soil, it means that the soil problem is more serious! If left unchecked, the soil will be starved.

Characteristics of the soil that does not grow grass:

Soil acidification. Most of the soil in the north is neutral or alkaline, and the long-term unreasonable application of chemical fertilizers has caused the pH value of the soil to drop and gradually become acidic. The pH range for most crops is in between, and the soil is seriously acidified, or even reduced to below, how can crops grow well in such an acidic environment?

Soil salinization.

The use of unrotted farm manure and the abuse of chemical fertilizers have led to a gradual increase in the salt content of the soil surface. The salt content of some soil bottom layers or groundwater rises to the surface with capillary water, and after the water evaporates, the salt remains on the surface of the soil. Depending on the degree, moss, red frost, hoarfrost and other phenomena will appear on the surface of the soil.

Soil eutrophication.

Due to the accumulation of salt on the soil surface, it is suitable for some algae to live, and when the soil surface dries, the algae die and the algal residue shows a red color.

Plants only need water and soil to survive (false).

Soil is only one type of inhabiting substrate. For plants, the most basic needs are water and a variety of minerals dissolved in water, as well as visible light and carbon dioxide for photosynthesis. Plants generally prefer to grow in soil with less salt.

However, in some places, the salt content of groundwater is high, and some of the salt remains in the surface layer of the soil, and it is dry in spring.

A layer of alkaline frost of white flowers appears in the ground, which is the crystallization of salt in the soil. People call the land with sodium salt as the main component as saline-alkali land, and there are many such saline-alkali lands in the plains of northern Shandong and eastern Hebei. There are also coastal areas, where there are also large areas of saline-alkali land due to the use of seawater for irrigation or seawater backfilling.

Plants can survive in such soils.

There is something different about it. Otherwise, it will be difficult for the roots to absorb water, and at the same time, the accumulation of salt in the body will also affect the activity of cells, which will cause the plant to be "poisoned" to death. Soil is organically composed of four components: solid phase (minerals, organic matter), liquid phase (soil moisture or solution), and gas phase (soil air).

In terms of volume, minerals account for about 38-45%, organic matter accounts for about 5-12%, and pores account for about 50% in the ideal soil. By weight, minerals account for more than 90-95% of the solid part, and organic matter accounts for about 1-10%. Generally speaking, the soil is the uppermost layer of the earth, and we dig and plow on it, and plants can grow on it.

The soil covers most of the landmass.

The type of soil in an area depends on many factors, including the local climate and rainfall, topography, the movement of water in the area, the mineral composition and the rock fragments that form the soil, the animals that inhabit the soil, the plants that grow there, nearby human activities, and so on. These varying factors give each soil a special blend of compositions.

The characteristics and reasons for the soil of flower pots and farmland are different from those of grass, and the specific differences are as follows:

1.The soil of the pot is generally more fertile than that of the stove, and there is sufficient sunlight around the container, but the capacity of the cryptobranch is relatively limited, so it is not conducive to the growth and reproduction of plants. In pots, lack of grass growth is usually caused by a lack of nutrients and insufficient sunlight.

2.Farmland soils are more complex, muddy, and coarse than pot soils. In addition, farmland has a large soil area, uneven terrain, different soil NV values, and there may be pathogens and insect pests.

Therefore, lack of grass is often associated with poor soil quality and environmental pollution.

3.Wasteland soils are often in poor conditions and are not adequately cultivated and managed, resulting in very poor soil quality. Lack of grass is often closely related to severe soil erosion, desertification, thin soils, lack of nutrients, and excessive evaporation.

Compared with farmland soil, the ecological environment of wasteland soil is more harsh, and it is difficult to grow grass or other plants.

Nowadays, many people will be dazzled, but on the issue of dazzle, many people seem to have some misunderstandings. There are some people who think that it is okay to use any kind of soil when raising flowers. Therefore, when you want to add soil to the flowers after buying flowers at the beginning, you will go to other places to get some soil at will.

It seems that most people have the impression that if you want to raise flowers, as long as there is soil, you can do itBut in fact, not all soils are good for cultivating flowers, and some soils will not grow at all. First of all, those soils that contain strong acids and alkalis should never be used to grow flowers.

There are some soils, and due to the special environment in which they live, there are often some people who pour some strong acids or strong alkalis and other liquids on them. Over time, the composition of these soils has changed a lotThe soil you see now is not as ordinary as you think, but a soil that contains strong acids and alkalis.

Then you will actually cause a lot of damage to the flower when you use themIn addition to the strong acid and alkali soil is absolutely not to be used, there is also the kind of soil containing herbicides. Many people actually spray some insecticides on the plants when they plant crops, in order to kill all the insects on the plants.

But if you accidentally pour the insecticide into the soil, then the soil should never be used to grow flowers, because the soil containing the herbicide will kill all the flowers to a large extent.

If you don't have grass on the land, you can use concentrated acid, or concentrated alkali, or sea salt to sprinkle it on the soil, and the soil will not grow grass.

Soils with strong acids and alkalis should never be used, and soils containing herbicides should not be used.

I don't know, I usually buy special flower soil before raising flowers, and the flowers are alive and well.

It seems that there is none, and it was said before that the radiation contaminated will not grow, and Chernobyl is not the same as the branches of the trees.

In this case, strong acids and alkalis are not suitable for plant growth, and will corrode plant roots and cause plant death.

Soils that contain strong acids and alkalis should never be used to grow flowers.

Previously, it was said that if the battery is buried in the soil, it will cause no grass to grow in one place. Grass doesn't grow under the big trees.

Plants grown without soil are not special, and normal plants can be cultivated without soil.

Soilless cultivation only simulates the environment of the soil, and the nutrient solution contains the macro- and micro-elements required by the plants. n p k et al.

Light mainly affects plant photosynthesis, and temperature and humidity have an impact on plant transpiration and respiration, and this effect is comprehensive.

The necessary conditions for plant growth are: sunlight, water, minerals (inorganic salts, trace elements, etc.). Plants survive in the soil because the soil provides them with the mineral elements necessary for their growth, as well as inorganic salts and water, and they can photosynthesize and grow under sufficient light conditions.

Therefore, as long as the mineral elements necessary for plant growth are added to the culture medium and made in proportion, the plant can be grown under soilless cultivation conditions under light conditions!

Now the organisms are evolved from marine organisms, the soil only plays the role of fixed plants, as well as to provide nutrients and various minerals for plants, soilless cultivation for the nutrients needed by plants is artificially provided, and now for soilless cultivation is still very backward in China, the nutrient solution only has a general formula and no specificity. Environmental conditions are artificially controlled.

Because the nutrient solution of soilless cultivation already contains all the nutrients that plants need. Including inorganic salts, plant growth hormones. Some of them are special nutrient solutions that contain all the nutrients, and some of them are special nutrient solutions to study the symptoms of some nutrient deficiencies or the physiological and biochemical effects of related nutrients.

The seeds of many plants can survive for a long time in the state you are talking about.

1。Air plants.

No soil cultivation, no watering, the roots are directly exposed to "broad daylight", and they live by absorbing water from the air.

Example: Air pineapple

2。Plants floating on the water.

For example: duckweed, water hyacinth.

3。Soilless culture.

That's a lot, a lot of vegetables, flowers.