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Hydroponic vegetables should not be grown directly with tap water, because tap water is chlorinated and contains disinfectant and sterilizing ingredients. It is easy to cause damage to the root system of vegetables.
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I don't think you can use tap water. Vegetables should be grown using a special medium so that they can grow better and more nutritious.
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You can't use tap water, there is a lot of bleach in tap water, and the nutrients in it are relatively small, which is not conducive to the growth of vegetables.
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Of course, you can use tap water directly, but it is more wasteful.
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Cultivation methods of hydroponic vegetables:
Make a hydroponic tank
Before planting hydroponic vegetables, you should prepare a watertight hydroponic box, and it is recommended that you use a plastic foam box. A float of the same size is placed on top of the box to carry the vegetables.
Handle vegetables
Before hydroponic planting, the vegetables should be treated simply, and the hydroponic vegetables should be selected first, and the roots should be rinsed with clean water. Then comb its roots, use scissors to cut off its dead old roots and rotten roots, and then use potassium permanganate to disinfect. The disinfected root system should not be directly hydroponic, but should be rinsed with clean water before colonization.
Hydroponics is performed
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.
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 change of water, you can use rainwater, the yard of tung water in the pond, or you can use the water from the river.
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The main method of hydroponic vegetable planting is to disinfect the roots first, and then prepare an impermeable hydroponic box, the nutrient solution is reasonable with the reputation of the system, the planting and sowing to strengthen air circulation, and the weeding treatment is carried out irregularly after planting, and the water can be changed every 3 4 days.
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Many people can't tell what the difference between hydroponic vegetables and cultivated aquatic plants is, because they both grow in water. This has led some people to think that hydroponic vegetables are nothing great, they are nothing more than basking in the sun, watering a little water and fertilizer at most, and it will grow on its own, because isn't this what aquatic plants are? It's not that simple.
Aquatic plants grow naturally in water, love water by nature, and can rely on their bulbs and the meager nutrients naturally dissolved in the water body to grow normally, and do not need special care.
At the same time, aquatic plants are suitable for human direct consumption and are not suitable for human direct consumption, except for a few kinds of lotus root, water chestnut, water chestnut white, etc., most of them are not suitable for human direct consumption of aquatic plants.
Hydroponic vegetables, on the other hand, are essentially domesticated by a special method to allow them to grow hydrobacon roots, so that they can absorb nutrients from water. In principle, hydroponics can be achieved for most plants. But only plants that we can eat or can ornament and have a definite purpose will be selected for domestication.
At the same time, the domestication of hydroponic vegetables or other plants only solves the problem that their roots can survive in water, but to really grow well, they can't just be watered like natural aquatic plants.
In order to grow hydroponic vegetables quickly and with high yield, it is necessary to use nutrient solution, artificial light supplementation according to the situation, as well as pest control and standardized management, so as to grow vegetables that meet the requirements of market sales.
In order to improve the quality of hydroponic vegetables and strive for stronger market competitiveness, it is also necessary to be more refined in all links. For example, in greenhouse cultivation, the use of full-shade hydroponic pipes to grow hydroponic vegetables, so that the roots of the vegetables are in a naturally relaxed dark growth environment, and the vegetables will not be in a state of stress for a long time, so they can grow better and faster, and taste better. Jiangsu Rongcheng Agriculture, one of the well-known manufacturers of soilless cultivation equipment in China, has done a lot of experimental research for this purpose.
These are the "everyday" of hydroponic vegetables, and every link of their life cycle is strictly controlled to achieve the purpose of hydroponic them. It's not as laid-back as aquatic plants.
What do you think? Is the painting style of hydroponic vegetables different from that of root aquatic plants? The latter is a plant taxonomy, while the former is an industry. Now do you understand? (Text: Jiangsu Rongcheng Agricultural Plain).
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Cultivars: lettuce, fungus, water spinach, purple back, leaf beet, endive, Beijing waterweed, watercress, in addition to some leafy vegetables, some fruit and vegetable vegetables can also be hydroponics, such as cucumbers, melons, tomatoes, etc.
Features of hydroponic vegetables.
1. The root system is dominated by milky white capillary roots, which are used to absorb water and nutrients.
2. The root system adapts to the aquatic environment, and there are some aerial roots on the periphery to absorb oxygen.
3. The growth cycle is short and the market is early.
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When planting hydroponic vegetables, it is necessary to provide them with a well-sealed cultivation plastic box, and it is also necessary to choose vegetables with excellent varieties and health and disease-free vegetables, and then rinse the root system of the plant with clean water, and then the vegetables can be planted in the hydroponic plastic box, and the culture water is replaced every 7-8 days to make the hydroponic vegetables grow vigorously.
1. Provide containers
When planting hydroponic vegetables, in order to choose a container suitable for growth, you can choose a cultivation plastic box with good sealing and suitable space, and then put the plastic box into the water for high-temperature cooking and disinfection, remove the bacteria and germs in the container, and also need to put a floating plate with the same width and length in the hydroponic box to facilitate the carrying of vegetables.
2. Vegetable selection
When planting hydroponic vegetables, you need to choose plants with excellent varieties and then treat them, you can use clean water to clean the soil on the vegetable roots, you also need to use sterilized scissors to cut off the dry and rotten roots of vegetables, and then apply potassium permanganate solution to the fracture of the plant roots for disinfection.
3. Hydroponic method
When cultivating vegetables with water, you need to plant the treated plants in the hydroponic tank, you need to be careful when operating, it is best not to hurt the root system of the vegetables, so as not to reduce the survival rate, and you also need to add a few drops of nutrient solution in the hydroponic tank to provide the nutrients needed for the growth of vegetables and maintain their normal growth.
4. Replace the water
Hydroponic vegetables have higher requirements for water quality, when breeding hydroponic vegetables, if the water quality becomes turbid and black, it will lead to rot of the root system of the plant, so that the vegetables grow poorly, and the culture water needs to be replaced every 7-8 days, and natural water or mineral water that is non-polluting and rich in a variety of nutrients can be used.
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Hydroponic vegetable planting methods: preliminary preparation, root treatment, hydroponic methods.
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 the suspicion of 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 hydroponic should be taken out, the roots should be cleaned with water, and then the dead roots and rotten roots of the roots should be cut off with sterilized scissors, and then soaked and disinfected with potassium permanganate dilution solution for 30 minutes, and finally rinsed with water to rinse the Suixian 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, so that the leaves can be in the position above the floating plate.
Advantages and disadvantages of hydroponic vegetables
1. High yield: The yield of hydroponic vegetables is several times or even more than ten times higher than that of traditional soil cultivation or substrate cultivation.
2. Good quality: Because the nutrient solution is used for planting, its nutrient supply is balanced, so the taste is better and the quality is better.
3. Safe and delicious: the green vegetables cultivated with nutrient solution can reach the A-level level, and the organic fertilizer cultivated can reach the A-level level.
4. Disadvantages: Generally, hydroponic vegetables are lighter in color, the stalks are longer, they look unenergetic, hydroponics and light can not be carried out at the same time, strong light will increase the water temperature, or you have to reduce the light, which makes the plant lack photosynthesis.
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