Can plants grow without soil?

Soilless culture, also known as hydroponics and nutrient hydroponics, refers to the method of allowing crops to grow completely in the nutrient solution without using natural soil, or first fixing the plants with substrate, and then issuing a nutrient solution for their growth. There are 450,000 species of plants in the world, and more than 200,000 species belong to higher plants alone. There are many ways to classify plant species.

For example, plants can be divided into: seed plants and spore plants. Terrestrial and aquatic plants and parasitic plants, etc.

Some need soil, some don't, so plants can grow without soil. Some plants can still grow normally in strong acids and alkalis, even in volcanic environments. And then grow cucumbers, celery, tomatoes, etc., and provide them with nutrient solutions on a regular basis.

As a result, these vegetables grow even better than when they were grown in the ground!

First of all, we need to know what are the conditions for the normal growth of plants, suitable temperature, light, nutrition, water, minerals, the role of soil is to provide the substrate for plant attachment, you can see that what plants really need is those nutrients and suitable environment, if these things you can provide it is enough for plants to grow normally, but without attached substrate plants can not grow upright, at this time we can artificially provide so that plants can grow upright, can use asbestos, porous partitions, Even if you hold it with your hand, it can grow normally, so plants cultivated without soil can grow normally.

Soilless, designed to provide plants with the main nutrients needed for life, color soilless cultivation technology: China's soilless culture in the production of the history is short, some people do not understand that the use of substrate cultivation is also soilless culture, only know that hydroponics is soilless culture, or think that hydroponics is a "higher level of soilless culture", and for the use of substrate, especially the use of colored substrate "organic ecotype" soilless culture, used to produce China Green Food Development Center stipulates AA grade green food. At the same time, it can be planted with exotic flowers and plants, and rare ornamental pocket fruits and vegetables can be planted.

Japanese crystal flower - color soilless cultivation is a modern high-tech product. Colored media come in lumpy or jelly-like appearance and come in a variety of colors. Features:

1.It contains various nutrients required by plants, does not need to be fertilized, and has strong water retention and water absorption;

2.Sterile, non-toxic, harmless to the human body, pest-proof;

3.The appearance is jelly-shaped, put in a transparent container, placed in the home or office, pleasing to the eye, giving people the most ideal visual effect;

4.The use of soilless cultivation to cultivate flowers and plants can directly observe the whole process of plant growth, which helps to stimulate children's interest in observing nature and cultivate their sentiments.

5.Seven colors to match to your liking.

Our most common plant cultivation substrate is soil, the growth of most plants is inseparable from the soil, even if some plants can be hydroponic, but usually the growth of plants protected by hydroponics is always not as good as soil culture.

Soil is the main material basis for the survival of plants, which can provide the necessary water, fertilizer, heat and gas for the growth of flowers and plants, mainly because the composition of soil includes organic matter and minerals.

Soil air and soil moisture, minerals are the most basic substances that provide a variety of nutrients to plants. Organic matter can not only provide nutrients to plants, but also play a very important role in improving the aggregate structure and physicochemical properties of soil, as well as water supply, water retention, temperature stabilization, ventilation, etc.

Soil moisture is essential for plant growth and growth, and soil air is the oxygen needed by plants to learn absorption and microbial life activities**, and it is also a necessary condition for the further weathering of minerals in the soil and the release of nutrients from the conversion of organic matter.

Relevant scientific experiments have proved that the soil suitable for plant growth, if calculated by volume, organic matter accounts for about 12%, minerals account for about 38%, soil moisture and soil air account for about 15% to 35% respectively, it is reported that when plants grow, the most suitable amount of water accounts for 25% of the soil volume, and the air accounts for the same.

<> some flower friends in the maintenance of plants, a long time does not change the pot and soil, the physical and chemical properties of the soil deteriorate, which is also lacking in nutrients, water permeability and aeration are relatively poor, continue to use the plant will grow poorly, less flowering, yellowing leaves, some even do not flower, so if you want to raise a good plant, you must pay attention to replacing the soil after a long time.

1. Can plants grow without soil?

2. Why can plants grow without soil?

3. Can plants grow without soil?

4. What soil does not grow plants.

1.The growth of most plants is inseparable from the soil, which contains the necessary water and minerals for plant growth, and can also fix the root system, which can promote the plant to stand up, better flowering, and fruiting.

2.However, there are also some plants that do not depend on soil to survive, as long as they meet the necessary air, water, and sunlight for growth, they can grow normally even if there is no soil.

3.That is, our common hydroponic plants, which can be planted in vases and plastic bottles.

4.For example, hyacinth, rich bamboo, wenzhu, etc.

The vast majority of plants grow in soil because it contains water and minerals that are necessary for plant growth. Plants absorb water and minerals through their thick and thin roots, which are then supplied to all parts of the body. At this time, the root of the plant resembles its "mouth".

In some arid places, water is found deep underground. The roots of the plants there tend to be very long, reaching deep into the soil to "drink" water.

Solid soil allows plants to take root. At this time, the roots are like the "feet" of the plant, grasping the soil and helping the trunk to stand up straight, so that it will not be blown down by wind and rain.

There are two main types of plant roots, one of which has a particularly thick taproot, while the other type of root is about the same length and thickness, like a whisker.

Plants need water, air, mineral nutrients, and sunlight to grow. Soil is the carrier of water and mineral nutrients, and it has the function of fixing plant roots and stems, because plants cannot directly absorb nutrients from rocks, if people can use other substances instead of soil to meet the requirements of plants for the above four elements, plants can also grow without soil. In modern times, there are factory gardens, that is, in the factory with multiple layers of nutrient pots, the so-called soilless planting.

This makes it possible to produce a large number of products in a limited area. However, at present, the cost is very high, and it is limited to experimental use.

The role of the soil is simply to provide water and inorganic salts and a small amount of oxygen.

Another function is to make the root grasp on it, which can be stabilized

As long as water, inorganic salts and the necessary oxygen content are provided, plants can grow well

Reasons why plants can still grow without soil:

The role of the soil is only to provide water and inorganic salts and a small amount of oxygen, and another role is to make the roots grasp on it, which can be stabilized, for the growth of plants, the soil is not necessary, as long as water, inorganic salts and the necessary oxygen content, plants can grow well.

Most solid substances in plants are obtained from the atmosphere. Through a process known as photosynthesis, plants use the energy from sunlight to convert carbon dioxide from the atmosphere into simple sugars. These sugars are used as building materials and form the main structural components of plants.

Plants rely on the soil for support and water, as well as important basic nutrients such as nitrogen and phosphorus. For most plants to grow successfully, they also need oxygen from the atmosphere (for respiration) and oxygen around their roots. However, some special vascular plants, such as mangroves, allow their roots to grow in a hypoxic environment.

Plants grow by absorbing nutrients from the soil.

The relationship between soil organic matter content and the number of soil microorganisms in the rhizosphere of crops is very close, and the content of organic matter often determines the biological activity of soil, and many organic matter can be decomposed into organic colloids with the help of microorganisms, which greatly increases the adsorption surface area of soil, and produces many sticky substances, so that soil particles are cemented into a stable aggregate structure, which improves the performance of soil water retention, fertilizer retention and air permeability and the ability to regulate soil temperature, and provides a suitable soil environment for the growth of plant roots. Thus promoting the growth and development of plants.

Plants grow by absorbing nutrients from the soil. Can plants grow without soil? As early as the 18th century, it was discovered that plants grow by absorbing nutrients such as water and minerals from the soil.

Therefore, some people imagined that if the various nutrients needed for plant growth were prepared into a solution in the right proportion, wouldn't it be possible to carry plants in this solution? And it worked.

This method is called solution culture or hydroponics, also known as soilless culture. In the 20th century of this century, some people used this soilless cultivation method to cultivate tomatoes and achieved success. Later, some people dug many small holes in the styrofoam, inserted the plants into the small holes, and then covered the styrofoam board on the cultivation trough containing the nutrient solution.

In this way, the styrofoam board can be used to hold the plants in place. In addition, washed and sterilized perlite, slag and other materials with good water absorption and air permeability can be used as substrates to support plants, and the nutrient solution can be infiltrated into the substrate through pipelines or other methods for plant growth and utilization. Soilless cultivation is actually an emerging cultivation technique that uses an artificial root environment to replace soil.

Soilless cultivation has many advantages. First of all, it avoids the accumulation of pest and disease residues and salinity in the soil, so crops are not sensitive to pests and diseases. Soilless cultivation does not require heavy labor such as tillage, fertilization, and weeding, which can save a lot of manpower, time and agricultural machinery.

Because soilless cultivation does not apply manure and urine, does not use sewage, and does not use a large number of pesticides, the vegetables it cultivates are pollution-free. On the other hand, because soilless cultivation is not affected by natural conditions, it can be produced all year round and realize automatic operation, so it provides the possibility of factory production of agricultural products. People also apply soilless cultivation techniques to the cultivation of flowers, especially on balconies, which can grow vegetables and flowers, providing conditions for the development of home farming.

Because the plant grows by water, soil, fertilizer, light, and seed, if the plant leaves these growing conditions, it cannot survive, so it must grow in the soil.