With photosynthesis, will vegetable products grown using nutrient solutions be valuable?

Shouldn't the value of vegetables be pesticide-free and organic?

Accurate soil cultivation nutrient solution soil apparatus.

Light promotes photosynthesis. Photosynthesis is required for the proper growth of vegetables, and light is necessary for photosynthesis. Photosynthesis is the basis for the yield of vegetable crops, and 95% of the dry matter of the plant comes from the dry matter produced by photosynthesis.

Generally speaking, the dry matter of the plant is high, and the morphological manifestations are robust plants, thick stems, and thick leaves. Growing vegetables also requires water and nutrients.

The meaning of photosynthesis.

1. Energy conversion.

While assimilating inorganic carbides, plants convert solar energy into chemical energy, which is stored in the organic compounds formed. The solar energy assimilated by photosynthesis is about 3x10 2j per year, which is about 10 times the energy required for human energy. The chemical energy stored in organic matter, in addition to the use of the plant itself and all heterotrophs, is more important for the energy of human nutrition and activity**.

2. An important way for inorganic matter to become organic matter.

Plants can absorb about 7x10 11 tons of CO2 per year, and synthesize about 5x10 11 tons of organic matter. The food, oil, fiber, wood, sugar, fruits, etc., all needed by human beings come from photosynthesis, and without photosynthesis, human beings will have no food and various daily necessities. In other words, there can be no human survival and development without photosynthesis.

The nutrient solution is artificially prepared, which is more in line with the nutrient needs of vegetable growth, and can provide nutrients for the growth of vegetables more accurately, reasonably and effectively.

The nutrient solution of soilless cultivation is based on the law of nutrient demand for nutrients in the natural growth state of vegetables, and is precisely formulated by using some chemical fertilizers, which is not essentially different from the composition of effective nutrients in the soil, and the nutrients in the soil must also be converted into the form of chemical ions in order to be absorbed by vegetables.

Regardless of whether it is soil-grown or soilless, vegetables absorb the same chemical ions as nutrients, and even organic fertilizers must be converted into ionic forms before they can be absorbed by vegetables.

Nutrient solutions are substances that are prepared using chemical fertilizers and chemicals to provide nutrients to plants. The composition of the nutrient solution will change during the growth of vegetables, and although the nutrient solution will be replaced, the current technology cannot achieve complete equilibrium, so it still has an impact on the nutrient composition of the plant. At present, there is still a lack of research reports in this area, and it is basically still in the stage of research and development of soilless cultivation technology.

There are only plant proteins, vitamins, and some trace minerals in vegetables, and no animal proteins, which is not good.

It should be okay, but the nutrient solution is generally used for hydroponic plants.

Chemical fertilizer can be used as one of the materials of nutrient solution for soilless cultivation, but simple compound fertilizer cannot be used to grow vegetables.

It is not possible to directly make a nutrient solution to cultivate vegetables, because the nutrients are still insufficient, and other trace elements need to be added before they can be used for vegetable cultivation. If other elements are missing, vegetables will not be able to grow properly.

In the process of soilless cultivation of vegetables, the requirements for ordinary chemical fertilizers will be higher, and general chlorine-containing fertilizers are not recommended to be used in soilless production. All of them are reagents that are at least CP agents or above.

Therefore, chemical fertilizers cannot be directly used to make nutrient solutions to grow vegetables.

The nutrient solution of chemical fertilizer needs to be prepared according to the type and amount of fertilizer required in different growth periods of vegetables, and the commonly used N, P and K chemical fertilizers can not meet the growth of vegetables, and micro fertilizers such as Fe, Zn and Cu need to be prepared.