Are hydroponic vegetables safe to eat and what are the advantages of hydroponic vegetables?

There is no harm, hydroponic vegetables are pollution-free vegetables.

1. Hydroponic vegetables.

Refers to the fact that most of the root system grows in the nutrient solution.

In the liquid layer, only water, nutrients, and oxygen are provided by the nutrient solution, which is different from vegetables cultivated in the traditional soil cultivation form. Hydroponic vegetables have a short growth cycle and are rich in a variety of vitamins and minerals that are essential for the human body. Adopt the correct formula, prepare and manage the nutrient solution according to the appropriate method, so that the plant is in the most suitable nutrient solution environment at any period of growth and development, so that the plant can use more energy for growth, flowering and fruiting, so as to obtain rapid, high-yield and high-quality cultivation results.

2. Features. 1. It can prevent or alleviate the obstacles caused by continuous tillage and continuous cropping of soil, and can be cultivated with multiple stubbles at any height, continuous production, and balanced marketing, thereby improving the utilization rate of land.

2. In the process of management, hydroponic vegetables save the need for farming, weeding, soil disinfection and other operations, which can greatly save labor.

3. Vegetables have high yield, good quality, and clean, fresh and tender, pollution-free, pollution-free, and are pure green food.

4. In addition to being absorbed by the root system of vegetables and natural evaporation, the water consumption is very low, healthy, fresh, and guaranteed to maximize the production capacity in the form of a factory.

5. Compared with ordinary vegetables, the cost is high and the technical requirements are high.

1. Is it normal for hydroponic vegetables to grow fast?

The main reason why hydroponic dishes are big and fast is because:

1. The root system gets sufficient water.

2. The root system gets sufficient nutrients.

3. The root system has a good space for development.

These three ensure that plants can fully express their genes under the same light and temperature to maximize their growth and reproduction.

2. Are chemical fertilizers harmful to the human body as the main nutrient?

The reason why modern agriculture opposes the abuse of chemical fertilizers is not how harmful chemical fertilizers are to the human body, but that some chemical fertilizers cause damage to soil structure and the environment. Fertilizers and human sensations affect the taste of some crops at most - an imbalance of nutrients can lead to poor taste, but it is not harmful to human health. In fact, the safety risks caused by pathogenic bacteria and parasites in human and animal manure are much higher than those of chemical fertilizers, and many developed countries have strict restrictions on the use of human and animal manure, but do not restrict the use of chemical fertilizers.

Please note: Agricultural experts oppose the misuse of chemical fertilizers mainly because of soil structure and environmental pollution, not because chemical fertilizers are harmful to health!

Compared with traditional soil cultivation and substrate cultivation, its main advantages and disadvantages are as follows:

1. High yield:

Hydroponic vegetables directly provide nutrients and water to the root system through the nutrient solution, so the nutrition of vegetables is more sufficient, balanced and rapid, and the vegetables grown in this way are several times or even more than ten times higher than the traditional soil cultivation or substrate cultivation in terms of yield.

2. Good quality:

Because the nutrient solution is used to plant vegetables, its nutrient supply is balanced, and the nutrients can be accurately controlled according to the different types of vegetables and growth stages, and it is carried out under the conditions of protective facilities such as greenhouses, which are not easy to be disturbed and affected by conditions that are not conducive to growth like open field cultivation, and the secondary metabolites produced by the plant will not accumulate too much to resist the stress of drought, flooding, infection, insect bite and nutrient imbalance. Therefore, hydroponic vegetables have a better taste and better internal quality.

3. Easy to automate management

Since the hydroponic facility uses nutrient solution as the rhizosphere condition to provide plant root growth, its nutrient level is easy to be accurately controlled by automatic control equipment, and the automatic management of the production process can be realized by adding various detection probes and corresponding control equipment.

4. Simple management of facilities and equipment

Hydroponic facilities and equipment are planted by pipelines or various planting troughs that can contain nutrient solution, etc., and the equipment is relatively simple, as long as the facilities and equipment are built well, the crop planting can be well managed, and the facilities and equipment of hydroponics are durable, and the management is more convenient.

5. Safe and delicious:

Hydroponic pollution-free vegetables are natural, additive-free, without the harm of residual pesticides and synthetic fertilizers, and do not use hormones. Any hydroponic vegetable tastes more flavorful and crisp and tasty. "Green vegetables" refer to safe, high-quality and nutritious vegetables without pesticide residues, pollution, pollution, and hormones.

In order to indicate that this kind of vegetable comes from a good ecological environment and is not harmful to people's health, it is named "green vegetable". Vegetables cultivated with nutrient solution can reach Grade A green vegetables, and those cultivated with organic fertilizer as nutrient solution can reach the highest grade AA.

The advantages of hydroponic vegetables are: they are not affected by the season and climate, and they can be marketed all year round; No pesticide residues; No contact with the soil, no pathogenic microorganisms.

1. The nutritional composition of vegetables is more balanced.

The nutrient solution provided in hydroponic vegetables is composed of water and nutrients in the mouth. The nutrients come from soluble inorganic fertilizers, which have the same molecular composition as the nutrients that plants need to grow in the soil, and hydroponic cultivation allows for precise control of the nutrients of vegetables. For consumers, this means a more balanced and consistent nutritional profile of vegetables.

Comparatively clean.

Vegetables are made by blending nutrients and grow relatively quickly.

Because it is hydroponic, the cultivation sites are relatively wide, such as balconies.

The water cup dormitory has put that access space ah time that confirmed that there is a lack of trace amounts to play those necessary trace elements.

Hydroponic vegetables have a variety of points:

1. Save land and plant three-dimensionally.

2. Save natural resources and have high yield.

3. Clean and hygienic, Luthor environmental protection.

4. It is less affected by the season, and can be planted in all seasons.

5. Save manpower and high efficiency.

Summary. Hello, dear here, here for you to inquire about hydroponic vegetables, the answer is beyond doubt. Usually soil-grown vegetables absorb soil nutrients at the same time, absorb heavy metal residues and pesticide residues in the soil, while hydroponic vegetables grow in the vegetable tube for a long time, and there is no residue of harmful substances such as heavy metals after testing.

Hello Dear Here is the key to the manuscript of your inquirer to hydroponic vegetables, the answer is beyond doubt. While absorbing soil nutrients, the usual soil-grown vegetables absorb heavy metal residues and pesticide residues in the soil, while hydroponic vegetables grow in the vegetable tube for a long time, and there is no residue of harmful substances such as heavy metals after testing.

Hydroponic vegetables are not too harmful to the body, they belong to a pollution-free vegetable, which has high nutritional value, which is rich in brass, organic compounds, and does not contain pesticides and heavy metals and other pollutants, which ensures the safety and hygiene of vegetables and replenishes enough energy for the body. The biggest advantage of hydroponic vegetables is that vegetables will not be affected by any season, usually through daily sowing, you can also harvest fresh fruits every day, planting vegetables in the process of planting provides nutrient solution and nutrients, increases the growth of vegetables, contains flavonoids are relatively high, belongs to a more common organic compound, after eating can play a role in lowering blood pressure and blood lipids, and the vitamin content is also relatively high, so that the nutrition is richer, the taste is more crisp and delicious, In the process of growth, no pesticides or synthetic fertilizers are added, and any hormone components and derivatives are safe and secure to eat, which can reduce some adverse reactions or diseases in the human body. Hydroponic vegetables mainly refer to a kind of vegetable whose roots grow in the nutrient solution, the growth cycle is relatively short, rich in a large number of trace elements and various minerals, and belongs to the necessary nutrients in the body next to the human cherry tree, but the Hongsong sedan chair needs to be cleaned in the process of eating to prevent dust and bacteria.

Hydroponic vegetables are safer, and ordinary vegetables taste more nutritious.

Cultivation methods of hydroponic vegetables

Method 1

1. Make a hydroponic box

Before growing hydroponic vegetables, it is necessary to prepare a watertight hydroponic box, and it is recommended that you use plastic foam boxes. A float of the same size is placed on top of the box to carry the vegetables.

2. Handle vegetables

Before hydroponic planting, it is necessary to carry out simple treatment of vegetables, first select hydroponic vegetables, and rinse the roots with clean water. Then comb its roots, cut off its old roots and rotten roots, and then disinfect it with potassium permanganate. The disinfected root system cannot be directly hydroponic, and should be rinsed with clean water before colonization.

3. Hydroponics

Be careful not to damage its roots when planting, and it is best to add the right amount of nutrient solution to the hydroponic box. The root system of the seedlings should be planted well, and there should be water in the hydroponic tank at all times.

Fourth, planting and maintenance

Pay attention to changing the water after planting, because there will be a lot of bacteria in the water during hydroponics, and the water quality will deteriorate over time. Therefore, it is necessary to pay attention to the water exchange, which can be used from rainwater, water from ponds, or water from rivers.

Method two

1. Preliminary preparation

In the process of hydroponics, vegetables use water as the substrate, so it is necessary to choose a plastic box that can hold water as a hydroponic utensil, and clean and disinfect it to avoid residual harmful substances, and to put a floating plate into the plastic box to facilitate the fixation of vegetables, so as not to soak the whole plant in water and rot.

2. Root treatment

Before hydroponic vegetables, the vegetables that need hydroponics should be taken out, the roots should be cleaned with water, the dead roots and rotten roots of the roots should be removed, and then soaked and disinfected with potassium permanganate dilution solution for 30 minutes, and finally rinsed with water to rinse the agent and hydroponics.

3. Hydroponic method

In the process of hydroponics, water should be injected into the plastic box, and then the processed vegetables should be inserted into the floating plate on the water surface to ensure that the root system is in contact with water, and the leaves can be located above the floating plate.