What Are the Hydroponic Cultivation Methods in the Greenhouse?
The term "hydroponics" actually refers to any plant culture grown without soil, and it involves many variations on the same topic.
1. The hydroponic grow system can include:
Substrate culture, in which the roots can be grown in an inert or semi-inert medium; hydroponic culture in which the roots are immersed in a nutrient solution tank; NFT culture (nutrient film technology), in which the roots are contained such that a film of nutrient solution flows continuously over the roots; and gas Cultivation method, in which the root system is suspended in an enclosed area and atomized with a nutrient solution.
2. What are the common hydroponic grow system media?
Hydroponic substrates include: coir, rock wool, oasis cubes, perlite, peat-based mixes, and more. Growers tend not to classify a peat-based mix as "hydroponics" because when it's made to have an EC charge and a specific pH, it can be manipulated.
The traditional view of hydroponics is that hydroponic grow system media have no measurable EC with a specific pH; for example, rock wool typically has a pH of 8 (caused by the formation of lime on fibers during manufacturing) and has no EC value. Growers often refer to traditional substrates as "relentless" and "unbuffered" in providing nutrients to plants.
3. So why plant a hydroponic grow system?
One of the advantages is the efficient and high-yield aspect of hydroponics; hydroponic growing requires less labor because the hydroponic grow system like a LED hydroponic grow box, can be almost fully automated at all stages of plant growth.
Instead, growing in soil requires more focus on issues that cannot be automated, such as weeding and farming. Soil-borne diseases and parasites are also reduced when grown hydroponically, while precautions should always be taken, fresh growing media for each crop will greatly limit such outbreaks.
Another advantage of hydroponic growing is that plants grow significantly faster than plants in soil. Research has shown that the speed has been tripled and the yield has been greatly improved.
Another advantage of hydroponic growing is water conservation. Depending on the irrigation method, up to 70% of the water and nutrients delivered to crops can be recovered and reused. Given the prevailing environmental concerns in today's society, keeping water usage to a minimum is a benefit.
If not fully understand and consider all aspects. Crops grown hydroponically can cause frustration, most hydroponics media don't have buffers; that's what you give the plant is what it absorbs. Water and nutrients are brought directly to the roots, and if you give the plants the wrong nutrients or in the wrong concentrations, the plants will absorb them immediately.
Simply put: in soil, buffer capacity is the ability to resist change; the medium of a hydroponic grow system does not have this ability. That's why it's so important that your irrigation system is reliable and well-controlled. Nutrients must be delivered to plants with specific EC and PH with little room for variation. Water needs to be provided on a tight schedule to avoid stressing crops due to under- or over-watering.