How to grow hydroponic vegetables at home? What can be planted?

Recently, the high price of hydroponic vegetables on the market has sparked public discussion. What kind of vegetables do hydroponic vegetables refer to? Can we also grow hydroponic vegetables at home? What problems should be paid attention to in the process of planting?

Hydroponic vegetables means that most of the roots grow in the nutrient liquid layer by layer, and only provide water, nutrients and oxygen through the nutrient solution, which is different from the traditional soil cultivation. Hydroponic vegetables have a short growth cycle and are rich in a variety of vitamins and minerals necessary for the human body.

What are the hydroponic vegetables?

1. Garlic

Collect some sprouted garlic at home, then find a larger container, not too deep, and put some water in it.

Then put the sprouted garlic evenly into the container, the root down, and finally put it on the balcony.

In about a week or so, the garlic will sprout, and the leaves will grow slowly. At this time, you can choose to put it into the soil and grow better.

When the garlic seedlings are almost ready, you can pick some and eat them, but it is best to keep the roots so that new garlic seedlings can continue to grow.

2. Bean sprouts

Go to the supermarket or oil store to buy some mung beans and soak them in clean water for a while.

Find a container, preferably a shallow one, put them in a container, pour a little water, and just pass the mung beans.

It will sprout in about three days, and you can add a little more water at this time to grow faster. You can eat fresh bean sprouts in a week or so.

3. Toona sinensis

Toona sinensis, generally eat more in autumn, Huahua especially likes to eat Chinese toon kimchi, the taste is still good. The tender toon can be used to scramble eggs, but it tastes good. The nutritional value of Toona sinensis is also very good, it is rich in vitamin C, but also has a good moisturizing effect on the skin.

You can go to the market to buy some seeds of Toona sinensis, then put them in a bag and gently rub them to remove the film outside the seeds.

Then put it in a larger container, put a little hot water in it, and bubble it until it expands.

Wrap the soaked seeds in paper towels and put them in an environment of about 20 degrees Celsius. New buds can grow in about a week, and then they can be cultured on a plate.

Sow the seeds evenly on the plate, then find a piece of gauze, soak it, and finally cover the seeds. When the seedlings are about the same, the gauze can be removed.

Spray it with water every day to keep it hydrated so that it won't shrivel up.

You can eat new Toona sinensis sprouts in about 10 days.

4. Chinese cabbage

After eating the fresh cabbage, leave the root and put it in the water. The water is too shallow to pass the cabbage root. After about two or three days, cabbage will sprout, also do not need any special maintenance, a few days to change the water can, no fertilizer, no root pruning, cabbage will thrive.

5. Carrots

The head of a carrot is usually cut off directly when cooking, which can become a chic scenery rather than throwing it into a trash can and keeping it in a glass vase. Green radish, carrot, white radish and so on can be hydroponically cultivated. Take carrots as an example, if you want to choose fresh carrots, you'd better have leaves at the top and have complete roots without leaves. Cut the carrots to the root and cut them down into the water. After a while, you will be able to eat self-grown vegetables.

6. Basil

Cut off 3 to 4 inches of stemmed basil, place it in a water cup and direct it into the sun.

Let it grow and grow. When the root grows to 2 inches, it can be transplanted into a flowerpot.

7. Lettuce

Soak the lettuce head in 1 pound 2 inches of water, water it every day, and keep the water level at the same height.

After a few days, the roots and new leaves grow out and can be transplanted into the soil.

Second, common problems of family hydroponic vegetables

Hydroponic technology is advanced, but novices will also encounter a lot of problems. I have summarized the 8 problems that are most likely to occur for you.

1. Breeding failure

There may be several reasons for the failure of breeding, such as slow seed germination caused by low indoor temperature, seed drying caused by insufficient water in the dark room, excessive water, etc., which can lead to seed rot.

Therefore, we should pay attention to room temperature and the degree of dryness and humidity of planting sponges when we breed.

2. Vegetables grow excessively

The overgrowth of vegetables is due to the lack of timely light after seed germination, resulting in poor growth of seedlings and eventually death.

We should turn on the supplementary light and illuminate the seeds in time after germination to ensure the normal photosynthesis of plants and prevent the occurrence of overgrowth.

3. The leaves of vegetables are light in color, and the stems are slender and not strong.

In the home may often encounter vegetables' malaise', do not look strong and so on, this is due to the lack of trace elements, the deficiency is mostly iron and zinc. The cause of nutrient deficiency is mainly due to root injury or low concentration of nutrient solution resulting in poor absorption of nutrients.

We should not carry out a second transplant of vegetables that have been successfully transplanted, so as not to damage the root system. The ratio of nutrient solution to clear water is 1: 200. Do not dilute it too much to avoid malnutrition of vegetables.

4. there are spots or patches on the leaves.

If the leaves appear spots or patches wrinkle and turn brown, it may be caused by lack of water, or the water temperature is too cold or chemicals such as nutrient solution are splashed on the leaves.

We regularly pay attention to whether the nutrient solution in the sink is insufficient and replenish it in time. When replenishing nutrients or transplanting vegetables, remember not to spill nutrients or chemicals on the leaves.

5. Root rot

Root rot is caused by many reasons, first of all, the increase of temperature and the drastic changes of hormones in plants lead to root rot. Secondly, due to the increase of temperature, the solubility of oxygen in water decreases. When the dissolved oxygen in water is lower than the critical value of root absorption, plants will rot because of hypoxia. In addition, high temperature is conducive to the growth of microorganisms, a large number of bacteria in the water, causing damage to the root system, resulting in rotting roots.

Most of the above reasons are caused by the high temperature, so we need to control the room temperature at any time in summer to maintain a normal temperature of 18-28 degrees. Secondly, it is also the key to regularly clean up the accumulation on the outside of the pump to prevent the pump from dry burning, resulting in a slow circulation of nutrient solution and a decrease in dissolved oxygen. For bacteria in water, a certain concentration of hydrogen peroxide can be added to the solution, or sterilized by ozone, ultraviolet radiation and other methods, which is an effective way to prevent bacteria from rotting roots.

6. Green algae in water

Green algae are formed by photosynthesis of nutrients in nutrient solution. Try to avoid the nutrient solution from being exposed to light, prevent the growth of green algae and consume the amount of dissolved oxygen in the water.

After the presence of green algae, we need to manually remove and seal the temporarily unused planting holes to avoid light. In addition, always observe the cleanliness of the sink and do not put your hand into the nutrient solution at will to ensure that the water quality used does not deteriorate and does not pollute.

7. Mosquitoes in the water

Growing vegetables in summer will face mosquito problems. Nutrient solution is rich in nutrients and water, which is a hotbed for mosquito growth. We need to cover the planting holes that are not used temporarily and ensure that the flume is airtight to prevent mosquitoes from entering.

8. Fruit dysplasia

Fruit dysplasia may be due to the high dilution ratio of nutrient solution or the destruction of root system, resulting in inadequate nutrient absorption. Secondly, too low indoor temperature and humidity and insufficient light will lead to deformities or stop the development of fruits and vegetables.

Therefore, we should ensure that the normal room temperature and sufficient light, the dilution ratio of the nutrient solution is constant at 1VR 200.

The temperature is higher in summer, so we should also pay attention to the growth changes of vegetables when growing.