What is nitrogen in plants and what is the use of nitrogen for plant growth

Nitrogen can promote the vegetative growth of plants, too much nitrogen in the plant will make the vegetative growth of plants excessively strengthened, a large number of photosynthetic products are consumed by vegetative growth, the accumulation is less, and the reproductive growth is inhibited, so that the plant yield of seeds, fruits, roots, tubers, bulbs and other organs as new products is reduced, so the yield will be reduced.

In addition, overly vegetative growth often leads to lodging of plants, which ultimately affects plant yields.

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Nitrogen is the most abundant element in the Earth's atmosphere, at 78%. It is one of the basic elements that make up amino acids and has an important role in living organisms. Protein is the basis of life, and without nitrogen, it is difficult to produce protein. Nitrogen is also one of the essential nutrients for plant growth.

Nitrogen is essential for plant growth. It plays many roles in plant growth and is an essential element for chlorophyll synthesis. Most of the nitrogen absorbed by plants is ammonium ions (NH4+) or nitrate ions (NO3-).

Common fertilizers include urea, amino acid water-soluble fertilizers, etc.

1. Nitrogen is a component of vitamins, amino acids and energy systems in plants. It also increases the protein content in plants.

2. Nitrogen can promote the synthesis of chlorophyll, enhance photosynthesis, provide sufficient nutrients to plants, and promote plant growth.

Plant nitrogen is the soil microorganisms can produce nitrogen in the air to produce nitrogen fertilizer that can be used in the process of thunderstorm lightning, can dissociate the nitrogen in the air, can react with oxygen, and finally infiltrate into the soil through rainwater.

Nitrogen nutrients can be absorbed by rhizobia or directly from the soil through the roots, so that adequate nutrients can be obtained**.

In nature, there is lightning, which separates the nitrogen in the air and reassembles it.

Lightning occurs in nature, where lightning separates and recombines nitrogen in the air.

The nitrogen absorbed by plant roots is mainly used for the synthesis of nitrogen, chlorophyll, vitamins, etc.

The nitrogen absorbed by plant roots is mainly used to synthesize compounds necessary for life such as proteins and nucleic acids, which are the basis for most other compounds in plants. Chlorophyll is an important light-trapping molecule for photosynthesis in plants and is involved in the conversion of light energy into chemical energy, so it requires a large amount of nitrogen for synthesis.

Vitamins are a class of organic compounds that have an important impact on plant growth, development and metabolism, and some of these vitamins also contain nitrogen. Therefore, the nitrogen absorbed by the plant roots can be used to synthesize these key biomolecules to support the normal growth and development of plants.

The absorption characteristics of plant roots mainly include the following aspects:

1. Selective absorption: Plant roots can selectively absorb water and nutrients, and adjust the absorption amount according to the plant's need for nutrients and nutrient concentration.

2. Osmotic pressure drive: the absorption of plant roots is driven by osmotic pressure, when the water content in the soil is low, plant roots will release some extracellular substances, increase extracellular osmotic pressure, and promote the absorption of water and nutrients.

3. Widely distributed: Plant roots are widely distributed in the soil, forming a complex absorption system to improve absorption efficiency. At the same time, plant roots are also able to adjust the growth and distribution of root hairs to adapt to different environmental conditions.

4. Strong plasticity: plant roots can continue to grow, differentiate and repair under suitable conditions to adapt to changes in the external environment and maintain normal absorption function.

5. Cooperation: There is a cooperative relationship between plant roots, soil microorganisms and other plants, which can promote soil improvement and nutrient cycling while absorbing nutrients.

The main forms of nitrogen in plants are: nitrate nitrogen and ammonium nitrogen.

The nitrogen forms in the soil can be divided into inorganic and organic two major spike zones, and the gaseous nitrogen present in soil gas is generally not included in the soil nitrogen. The nitrogen bound in the structure of soil organic matter is called soil organic nitrogen. Soil organic nitrogen can generally account for more than 95% of the total nitrogen.

The ammonium in the soil solution can be directly absorbed by plants because it is soluble in soil water, but the amount is very small. It is in equilibrium with exchangeable ammonium through cation exchange reaction, and has a chemical equilibrium with ammonia in soil solution, and can be converted into nitrite nitrogen and nitrate nitrogen by nitrifying microorganisms.

Nitrogenous compounds in soil that are not bound to carbon include ammonium nitrogen, nitrous nitrogen, nitrate nitrogen, ammonia nitrogen, nitrogen and gaseous nitrogen oxides, generally referring to ammonium chlorine and nitrate nitrogen. In most cases, the amount of inorganic nitrogen in the soil is very small, and the topsoil generally accounts for only 1%-2% of the total nitrogen, and at most no more than 5%.

Nitrogen is a chemical element with its chemical symbol n and its atomic number is 7. Nitrogen is the most common element in air, which is widely found in nature and has a great effect in living organisms, and is one of the basic elements that make up amino acids. Nitrogen and its compounds are widely used in production and life.

Nitrogen (N) Nitrogen is a component of proteins and nucleic acids. The nitrogen content in protein accounts for 16% 18%, protein is the basic substance that constitutes the cell protoplasm in fruit trees, and protein and nucleic acid are the basis of plant growth and development and life activities. Nitrogen is also a major component of chlorophyll, enzymes and vitamins, as well as lecithin.

Nitrogen is not only a nutrient element, but also plays a role in regulating hormones, and plays an extremely important role in maintaining life activities, increasing fruit yield, and improving fruit quality.

Inorganic nitrogen is a product of microbial activity that is easily absorbed by crops and also evaporates over time. Inorganic nitrogen is mainly composed of ammonia nitrogen and nitrogen. There is also a part of inorganic nitrogen adsorbed by the soil.

In the soil, the nitrogen form is divided into two categories: inorganic and organic, but mainly organic, which is divided into three categories according to the solubility and hydrolysis difficulty: the first type is water-soluble organic nitrogen, the second type is hydrolyzable organic nitrogen, and the third is non-aqueous organic nitrogen, which cannot be hydrolyzed during general acid-alkali treatment, but can be gradually decomposed under the action of various microorganisms.

<> I would like to share my personal views and thoughts on this issue, and I hope that my participation will bring you help and joy, and that you will enjoy my participation. Organic nitrogen in the soil is a more complex organic compound that needs to undergo a mineralization process and be converted into a soluble form in order to function as a nutritious crop. Its mineralization rate and mineralization rate are the key factors that determine the nitrogen resistance of soil.

The mineralization process of soil organic nitrogen is complex and includes many processes.

To the hydrolysis process, the protein is gradually broken down into a variety of amino acids by microbial hydrolase enzymes under the action of protein. The process by which amino acids are broken down into ammonia under the action of different microorganisms is known as the ammonia process. Institutional nitrogen includes ammonium sulfate, ammonium nitrate, ammonium carbonate, ammonium hydroxide, etc.

These compounds are unstable compounds that are prone to ammonia, as well as organic nitrogen, nitrification, and denitrification. Therefore, it is strictly forbidden to do more, less, cleanly, and deeply when applying, and pay special attention to aeration, in order not to destroy the leaves, or even cause the death of the entire bouquet.

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Through some microorganisms in the soil, the nitrogen in the air can be reduced to form plant nitrogen, and the nitrogen in the air can be dissociated through lightning to resynthesize nitrogen; This element is a trace element that is itself present on the earth; It can improve the product of microorganisms, which is easily absorbed by plants and increases plant nutrition.

Food nitrogen is fixed nitrogen due to the formation of nodules. This element is due to the composition of proteins. The role is to maintain the ecological balance, and at the same time, it can also provide nutrients to the plants.

It is an element that is formed during the growth of plants. This element is produced from inside the plant. It can help plants grow better, and can improve the lifespan of plants, which is the role of this element.

It is mainly absorbed by some crops. This element is a product of microorganisms. The specific effect is to increase the yield and improve the nitrogen resistance of the soil.

Summary. Hello, nitrogen is a component of chlorophyll.

Green plants rely on chlorophyll for photosynthesis, and both chlorophyll a and chlorophyll b contain nitrogen. Chlorophyll is the site of photosynthesis, so its content directly affects the rate of photosynthesis and the formation of photosynthetic products. When plants are deficient in nitrogen, the chlorophyll content in the body decreases, the leaves yellow, the photosynthesis intensity decreases, the photosynthetic products decrease, and the crop yield and quality decrease significantly.

Effect of nitrogen on plant leaf physiology.

Hello, Lina nitrogen is a composition of chlorophyllGreen plants rely on chlorophyll for photosynthesis, and chlorophyll a and chlorophyll b both contain nitrogen. Chlorophyll is the site of photosynthesis, so its content directly affects the rate of photosynthesis and the formation of photosynthetic products. When plants are deficient in nitrogen, the chlorophyll content in the body decreases, the leaves yellow, the photosynthesis intensity decreases, the photosynthetic products decrease, and the crop yield and quality all decrease significantly.

Leaves will be yellow, nitrogen is a component of chlorophyll and various enzymes of photosynthesis, nitrogen-deficient plant leaves are yellow, the content of enzymes will also be reduced, so that the bridge directly affects photosynthesis, phosphorus deficiency affects the synthesis of ATP, directly affects the photoreaction of photosynthesis. The abundant sources of nitrogen and phosphorus can make the plants flourish, and will also increase the area of photosynthetic hail bushes, and the photosynthesis is vigorous.

What are the physiological indicators of leaves?

Hello, the growth and development of leaf growth and development indicators: 1 leaf water potential, 2 leaf relative turgor pressure, 3 photosynthesis, 4 stomatal conductance and transpiration rate, 5 leaf area and leaf area index (LAI), 6 osmotic regulator early node substance, quality: In the pod stage and full fruit stage, the main stem was taken and 3 leaves were poured to measure the chlorophyll content of leaves.

Growth and development: 1 leaf water potential, 2 leaf relative turgor pressure, 3 photosynthesis, 4 stomatal conductance and transpiration rate, 5 leaf area and leaf area index (LAI), 6 osmotic regulating substances, quality: The main stem was taken at the pod-setting stage and the full fruit stage, and the chlorophyll content and other physiological indexes of the leaves were measured, and the fruiting conditions, plant traits and dry matter accumulation of peanut under different treatments were investigated. At 40 days after flowering (young fruit d (straw fruit) and 70 days (full fruit), 10 shaped pods with consistent development were selected and dried and stored for the determination of protein content, crude fat content, fatty acid composition and content, oleic acid-linoleic acid ratio, amino acid composition and content, and soluble sugar content of the seeds.

During the harvest period (September 20), the pods were harvested in a representative area and naturally air-dried, which was used to investigate the yield of pods, the number of fruits per plant, the number of fruits per kilogram, the number of kernels per kilogram and the kernel yield.