What is the magic of soil that allows plants to survive?

The product of the interaction of the inorganic environment is that the soil contains a large number of other organisms, such as microorganisms and invertebrates. Microorganisms can decompose organic matter and turn it into inorganic substances that plants can directly use, providing nutrients for plant growth; Invertebrates, such as earthworms, can achieve the purpose of turning the soil through their physiological effects, <>

Enlargement of soil voids, increase the content of air, and at the same time, earthworm manure can provide direct nutrients to plants, soil is the basis of plant growth and development. The ability of the soil to supply water, fertilizer, gas and heat needed for the normal growth and development of plants is called soil fertility. These conditions of the soil affect each other and restrict each other, such as more water, the soil aeration is poor, less organic, and easy to lose, on the contrary, the soil moisture is too little, and can not meet the water required by medicinal plants.

At the same time, due to the strong activity of aerosic bacteria, the organic matter of the soil decomposes too quickly, which will also cause nutrient insufficiency.

All kinds of plants have certain requirements for soil pH. Most plants are suitable for growing on slightly acidic or neutral soils. Plant growth and development need to be nutriently guaranteed, and nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, boron, zinc, molybdenum and other nutrients need to be absorbed from the soil, especially nitrogen, phosphorus and potassium.

In the cultivation process, attention should be paid to balanced fertilization, and at the same time, attention should be paid to the use of farmhouse fertilizer to facilitate soil improvement. Soil is a good "storeroom" in which water, air, mineral elements can be stored, which are necessary for the growth of plants, which are ingested directly from the soil.

In addition, the soil contains a large number of other organisms, such as microorganisms and invertebrates. Microorganisms can decompose organic matter and directly absorb it into inorganic substances that can be directly used by plants, providing nutrients for the growth of plants; Invertebrates, such as earthworms, can achieve the purpose of turning the soil through their physiological effects, so that the soil void is enlarged, and the air content is increased, and the earthworm manure can provide direct nutrition for plants.

It provides plants with nitrogen, phosphorus, potassium and other trace elements that can promote plant growth.

Coated with elements that contain nitrogen, phosphorus, potassium, etc., which can promote the growth of plants.

Provide plants with nitrogen, phosphorus, potassium and other trace elements necessary for growth;

Soil is rich in nutrients and water.

The soil contains trace elements that are needed for the growth of various plants.

Various minerals and trace elements in the soilThe soil contains trace elements that are needed for the growth of various plants.

Because suddenly there is water and nutrients in it.

Soil can store many nutrients.

Various minerals and trace elements in the soil.

Soil has a lot of nutrients.

Soil provides nutrients and water for plant growth, and at the same time acts as a medium for plant root stretching and fixation. Whether the soil is fertile or not depends on whether the soil has a high content of organic matter. To improve the nutrients of the soil, you can increase the application of organic fertilizer, burn straw to scatter plant ash in the soil, or use biofertilizer to improve the soil.

Soil provides nutrients and water for plant growth, and also acts as a medium for plant roots to stretch and fix. Soil not only stores nutrients from time to time, but also carries out a series of biological, chemical and physical transformations of various nutrients in the soil.

The fertility of the soil depends on the high content of organic matter in the soil, which is rich in organic matter and can provide plants with a large amount of nutrients and promote plant growth. At the same time, the pH of the soil also controls whether the plants can grow or not, and neutral land is suitable for all plants.

However, after the same land is cultivated for a long time, the soil will be poor, and the nutrients of the soil need to be changed. First of all, organic fertilizer can be added, and after the straw is burned, the plant ash can be sprinkled in the soil, which is rich in organic matter, which can change the organic matter content of the soil.

The second is the use of biofertilizers, which stimulate biological activity. Long-term planting has led to the loss of soil nutrients, the accumulation of harmful substances, and the damage of plant roots, which is the use of biological fertilizer, stimulate biological activity, eliminate the invasion of harmful bacteria, promote the growth of crop roots, and achieve the effect of high yield and high yield.

Soil is the basis for plant survival. The soil provides water, air and mineral elements for plants, and is the "storage room" of plants; Soil is the "energy reservoir" of plants; The soil provides space for plant roots to stretch; The soil provides mechanical support for the plants.

Plants also have a protective effect on the soil. The vegetation on the soil has the effect of preventing soil erosion.

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Summary. Soil can not only fix plants, but also affect the growth and development of flowers through the water, nutrients, air, and temperature in them, so soil is the basis for flower growth.

Soil is the basis for plant survival.

Soil can not only fix the plant, but also affect the growth and development of flowers through the water, nutrients, air, and temperature of the song.

Plants on the soil have the effect of preventing soil erosion.

1.Almost all terrestrial plants and animals depend on soil. 2.

Composition of the soil.

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 soilBy weight, minerals account for more than 90-95% of the solid phase, 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. Most of the soil is a mixture of:

1) Inorganic matter - small particles of rock that have weathered into sand, silt, clay.

2) Organic matter – decomposing plant and animal remains and fertilizers, collectively known as humus, from the Latin word for "earth".

3) Water. 4) Air.

Soils are usually layered, with the top layer being on the surface where humus, plant roots, and live animals such as microorganisms and earthworms can be found. The more humus, the more fertile the topsoil. In some places, such as the forest floor, there is so much humus that forms an isolation layer on top of everything else.

Underneath the topsoil is the subsoil, which may contain a greater proportion of clay and less organic matter. Underneath the subsoil is weathered rock, and below that is a hard bed.

Along with clay and sand, many soils contain a certain amount of silt. The silt is finer than sand and coarser than clay, and it is often carried by wind and water far from its place of origin. Silt is needed for crop production and is an important component of good soil.

Without silt, sand and clay soils will become hard and firm.

<> fungi. The variety of existence is vast and diverse. The role of only a few of these fungi is understood, and the rest is almost unclear.

Actinomycetes. It has the ability to decompose organic matter such as mold. Most of them belong to the bacteria that produce anti-biomass, and have the effect of inhibiting pathogenic bacteria.

Filamentous fungi.

That is, there are more than 100,000 types of mold. A very small number of filamentous fungi are known to be pathogenic bacteria that cause disease in vegetables.

Algae. In addition to water, there are many species of algae that are also present in the soil. Some algae absorb nitrogen from the air.

Earthworm. Earthworms can eat humus-containing soil and excrete it, and are a helper in cultivating soil to promote soil agglomeration.

Ticks and mites. Soil animals smaller than 1 mm. The soil is home to many predatory and parasitic ticks.

Protozoa. Single-celled protozoa that move to prey on and decompose organic matter, companions of paramecium, euglena algae, etc.

Nematodes. Tiny soil fauna smaller than a few millimeters. There are many species, and only a small part of them are parasitic on the roots of vegetables.

Nail mites. of small herbivorous soil animals, which are also the most abundant soil animals in the soil. Survive by breaking down fallen leaves.

Jumping insects. Soil animals smaller than a few millimeters decompose mold and algae for survival. Known as the "plankton of the earth", it plays an important role in the material cycle.

There are three kinds, microorganisms (bacteria, actinomycetes, fungi, etc.), plants (rhizomes, algae, etc.), animals (earthworms, termites, microscopic animal nematodes, etc.). Advantages of organisms in the soil: 1. Promote organic matter, 2. Decompose and decompose toxic substances, 3. Promote the transformation of inorganic compounds, 4. Nitrogen fixation, 5. Increase the absorption of nutrients by plants, 6. Protect plants.

The soil will hold the roots of the plants in place and store the water between the soil grains for them to use. At the same time, the soil is home to a large number of microorganisms. In just one cubic meter of soil, there are more than 10,000 species of bacteria and fungi, as well as 100 to 1,000 species of invertebrates such as earthworms.

They will decompose dead animals and plants and turn them into nutrients such as phosphorus, potassium, and iron, which can be reabsorbed by the plants. Skinning our vital nutrient cycle is the foundation of terrestrial ecosystems. Nutrients from the soil also flow into rivers and oceans with rainwater, nourishing freshwater and coastal ecosystems.

Reference: life123 site ?p=68 because the soil provides mineral nutrients in addition to it.

Organic matter will also be provided directly or indirectly.

Helps grow. These organic substances.

It is formed by the decomposition of humus by microorganisms in the soil. These are the ingredients that are less available in the water-wide plum cultivation method. Even if there is fertilizer for water supply to grow plants.

Most only provide minerals. Furthermore.

Plants planted in soil.

Roots absorb oxygen more easily.

The concentration of oxygen provided by hydroponic methods.

Generally, it is only 1 1000th of the air

And exhaled carbon dioxide accumulates in the water.

Hinders growth. Even if you change the water frequently.

Even pumping up in the water.

Chlorine removal. It also cannot simulate the effect of soil planting.

Because the soil contains nutrients.

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