Has anyone learned soilless cultivation? Can you answer the question in my mind?

In soilless culture, the requirements for conditions are definitely not so simple...

The demand for nutrients is strictly controlled, as well as the acidity and alkalinity of the solution, light, atmospheric humidity, CO2 content, etc. Different crops require nutrients and external conditions vary greatly.

Citrus and chicken manure may provide some minerals, but they are not guaranteed to be all essential minerals.

There are also necessary trace elements that must also be measured, and if they are slightly high, they will cause poisoning.

There are also some beneficial elements that are impossible to increase production without supplementation.

You can take a field trip and if their company has detailed various precautions for the planting of crops, then it can also be considered...

After all, soilless cultivation still has many benefits, and vegetables in the supermarket are expensive??! What is obtained from soilless cultivation is pollution-free green vegetables...

Because in the planting process, the harm of pests and diseases is greatly reduced... There is less use of pesticides.

And if the nutrition is proper and the conditions are suitable, the nutritional value will be much higher. . . As for what the benefits are, it depends on the individual.,After all, I haven't planted it.,But there's that kind of consideration.。。。

The cost of soilless cultivation will definitely not only be the money of 5000 greenhouses, but also equipment and facilities, and the initial attempt can be made on a small scale.

Soilless cultivation is not so simple, in that case, they would have won the science and technology award a long time ago, becoming Yuan Longping's second.

Exaggeration. That is, more than ordinary planting.

First, the advantages of soilless culture.

1. The crop has strong growth, high yield and good quality.

2. Save water, fertilizer, labor and labor.

3. There are few pests and diseases, which can avoid soil continuous cropping obstacles.

4. It can greatly expand the agricultural production space.

Second, the disadvantages of soilless culture.

1. It is a one-time investment with high investment and high operating costs.

2. It has high technical requirements and high quality requirements for management personnel.

3. Soilless culture, especially hydroponics, has poor buffer capacity, and there can be no obstacles in water and fertilizer, and there must be sufficient energy guarantee.

Conversely, the advantages and disadvantages of timely soil cultivation.

How many pounds of soil can make an apple tree grow an apple? Or a pear?

First, lettuce soilless planting method.

1. Soak the seeds in about 20 water for 3-4 hours, drain the water and put them on a clean and moist gauze, and germinate in a 15-20 environment, and the seeds can be exposed in 2-3 days.

2. Lettuce should be cultivated in autumn, winter and spring, and the seeds should be sown in a planting cup containing fixes, such as vermiculite, etc., or a seedling tray containing seedling substrate, and each cup should be sown with 1-2 seeds, and covered with a layer of substrate after sowing. Then cover with shade nets, drench enough water, keep it moist, and wait for the seedlings to emerge. About 10 days before planting, land ants should properly control the water according to the seedling conditions.

When the seedlings have 6-7 true leaves, the seedlings are planted in a nutrient bowl**, and then the seedlings are filled with vermiculite.

3. The formula of nutrient solution suitable for lettuce growth is (gram tons): calcium nitrate 621, potassium nitrate 444, potassium dihydrogen phosphate 330, magnesium sulfur envy acid 500, ammonium nitrate 69. In the early stage of planting, due to the small plant and underdeveloped root system, it can be deeper, and the depth of the nutrient solution is kept at about 10 cm, so it is advisable to soak it to the bottom of the planting cup 1-2 cm, with the elongation and growth of the root system, the water level can be gradually reduced, and the liquid level can be reduced to 5-8 cm, so that a part of the root system is exposed to the air, so as to increase the opportunity for root oxygen absorption, promote root development and plant growth.

4. When the plants reach the harvesting standard, they should be harvested in time. The harvest period is different for different varieties and different cultivation seasons, and the growth period of non-bulbling lettuce is 60-90 days, and the growth period of bulb-bearing lettuce is 100-120 days.

There is a soilless cultivation trough under this lettuce, which must be planted by bone cultivation, and there should be circulating water in the cultivation trough and Yingulpi Qing nutrient liquid, so that this cabbage grows relatively robustly.

There are no soil patches, and hydroponics is a soilless culture. Many methods without soil are also soilless cultures.

Soilless cultivation is a method of cultivating plants by using only the nutrient solution that supplies plant growth or can replace the soil and has various cultivation substrates suitable for plant growth without using natural soil and without preparing compound fertilizer and similar compound fertilizer based on soil.

Soilless culture can be divided into three ways: spray cultivation, hydroponics and solid substrate cultivation. Spray cultivation and hydroponics are not with water, but with a nutrient solution. All solid substrate cultivation where the nutrient solution can be recycled is called hydroponics.

The research of soilless culture started with hydroponics, so some people mistakenly think that soilless culture is hydroponics, but in fact, hydroponics is a way of soilless culture.

Soilless culture is a high-tech crop cultivation, which involves plant physiology, agronomy, meteorology, chemistry, agricultural engineering and other multidisciplinary technologies. It has played an important role in the factory production of agriculture.

Soilless cultivation refers to the method of cultivating plants with nutrient solutions and other equipment without soil. Solution culture (referred to as hydroponics) is the earliest kind of soilless culture that has been applied. As early as the 60s of the 19th century, the German scientist Sachs conducted a solution culture experiment.

This technology has played an important role in the study of plant nutrition, especially in the physiological function of mineral elements and the application of chemical fertilizers. Solution culture can effectively control the types and quantities of mineral elements supplied to plants, and is still an important means of plant physiology research. At the end of the 30s of the 20th century, the American scientist Jerek applied this technology to crop production and achieved success, thus laying the foundation for the application of soilless culture in agricultural production.

The advantages of soilless culture are: shortening the growth and development cycle of plants, overcoming the adverse effects of continuous planting on the land, making full use of water and nutrients, high product yield, good quality, less pollution, etc., therefore, soilless culture has broad development prospects in agricultural production.

Types of Soilless Cultivation There are dozens of types of soilless culture. According to the type of matrix, it can be divided into solid matrix type and liquid matrix type. The former includes sand-based culture, gravel-based culture, shallow stone culture, rock wool culture, perlite culture, sawdust culture, foam culture, etc.

According to the liquid and gas supply mode, it can be divided into drip irrigation type, spray type, ventilation type, circulating liquid supply type, shallow liquid supply type, etc. Different types of soilless culture have their own characteristics, and people can choose according to their needs and possibilities when applying.

The composition, concentration, preparation and regulation of nutrient solution are the technical basis of soilless culture.

Perlite culture. The advantages of soilless culture are mainly: This technology is the earliest application of soilless cultivation and gravel-based culture in plant nutrition research to overcome the adverse effects of continuous planting on plants.

Back in the 60s of the 19th century. Different types of soilless culture have their own characteristics, and they are still an important means of plant physiology research, with less pollution.

Technical basis of soilless culture.

For the composition of the nutrient solution, the German scientist Sachs conducted a solution culture test.

Types of soilless culture.

There are dozens of types of soilless culture, rock wool culture, especially in the physiological function of mineral elements and the study of chemical fertilizer applications, spray type, make full use of water and nutrients, people can choose according to their needs and possibilities when applying. The former includes sand-based culture and aeration. Solution culture can effectively control the type and quantity of mineral elements provided to plants, wood chip culture, foam culture, etc.

Late 30s of the 20th century. According to the liquid and gas supply mode can be divided into drip irrigation, shallow liquid supply, etc., the American scientist Jerek applied this technology to crop production and achieved success, thus laying the foundation for the application of soilless culture in agricultural production, therefore, circulating liquid supply, soilless culture has broad prospects for development in agricultural production: shorten the growth and development cycle of plants, high product yield, shallow stone culture, good quality.

According to the type of substrate, it can be divided into solid substrate type and liquid substrate type, and concentration soilless cultivation refers to the method of cultivating plants with nutrient solution and other equipment without soil, which is an important technical basis, preparation and regulation of soilless culture. Solution culture (abbreviated as hydroponics).

Soilless cultivation refers to the cultivation method of using water, peat, forest humus, vermiculite and other media as the substrate of the plant root system to fix the plant, and the plant root system can directly contact the nutrient solution. The composition of the nutrient solution in soilless culture is easy to control and can be adjusted at any time. In places where there is no soil in the light and temperature, such as deserts, beaches, desert islands, as long as there is a certain amount of fresh water**, it can be carried out.

Soilless culture is divided into hydroponics and aeroponics according to the different cultivation media.

Soilless cultivation refers to the use of nutrient solution instead of traditional soil fertilizer cultivation. Its advantages are that it is simple and easy to operate, more effective in controlling pests and diseases, and also maximizes the use of fertilizer, and has a good effect on landscaping, which is suitable for indoor cultivation and use. Nutrient solutions can be bought in major supermarkets...

The so-called soilless cultivation is to completely get rid of the dependence of flowers on the soil, and make nutrient solutions according to various nutrients needed for plant growth and development, which are directly absorbed and utilized by plants.

Soilless cultivation can be divided into two types: liquid substrate cultivation and solid substrate cultivation according to the root fixation method. Liquid substrate cultivation is also known as hydroponics, that is, plants are planted in natural water or nutrient solution and fixed with containers; The solid substrate cultivation method is to implant seeds or seedlings into a substrate that absorbs the nutrient solution, and fix the root system with the substrate. A suitable substrate needs to have four basic functions, namely the ability to fix plants, the ability to retain fertilizer, the ability to retain water and the ability to breathe.

And because different flowers have different requirements for cultivation substrates, the appropriate substrate should be selected according to the needs of specific plants when selecting cultivation substrates.

Compared with the traditional soil cultivation method, the soilless cultivation technology of flowers has the following advantages: first, the cultivated flowers are of good quality and the cultivation cycle is short. Because the artificially prepared nutrient solution can be scientifically regulated according to the characteristics of nutrient requirements in different flower growth periods, which is conducive to the growth and development of flowers.

The second is to save nutrients, water and labor. 50% and 80% of the water and nutrients in the soil are lost, and the plants can only absorb a small part, while the nutrient solution prepared by the soilless cultivation method can be fully absorbed and utilized by the plants, as long as the plants are regularly supplemented with nutrients, the operation is simple, and the time and labor are saved. Third, it is clean and hygienic, and there are few pests and diseases.

Fourth, it is beautiful. Cultivating flowers with water or other substrates, coupled with a variety of delicate and unique and beautiful utensils, makes roots, stems, leaves, flowers, water, stones, fish, and mountains integrated, which greatly improves the ornamental value and artistic grade of flowers (see figure below).

Color 43 Crystal stone cultivation of hypnotic taro.