Products Description
Hydroponics is the practice of growing plants without soil and providing essential nutrients through water-based solutions. It is a popular technique used to grow different plants, especially lettuce, in controlled environments. However, growing hydroponic lettuce without grow substrates or media can have several bad consequences that affect the quality and growth of the plants.
Lack of Support
One of the main reasons why plants need a growing medium is for support. Without a proper growing medium, the roots of hydroponic lettuce will have no anchorage, leading to weak plants that are more susceptible to damage. In a hydroponic system, the plant roots are constantly exposed to water, and without a support structure, they can become waterlogged and suffocate.
Nutrient Imbalance
Why grow substrate is essential for hydroponic lettuce is that it helps maintain a stable nutrient balance. Nutrient solutions used in hydroponic systems contain a specific mix of nutrients that are essential for plant growth, and these solutions are carefully monitored to maintain a balanced pH level. Without grow substrate, the nutrient solution can become imbalanced, leading to nutrient deficiencies or toxicities.
Growing hydroponic lettuce without grow substrates is a bad idea that can have several severe consequences for the grower. The absence of a growing medium can lead to a lack of support for the plants' roots, nutrient imbalances, plant disease, water temperature fluctuations, and compromised yield. Therefore, it is necessary to use a proper growing medium, like Tenelead phenolic grow substrates in hydroponic systems to ensure optimal plant growth and development. A properly chosen growing medium helps maintain pH levels for the nutrient solution, supports the plants' roots, and helps provide the plants with a conducive growing environment.
Company Profile
1998
Xiamen Goot Advanced Material Co., Ltd. Batch mold foaming in 1998.
2001
The first continuous production assenbly line on stram in 2001(phenolic foam board composited with aluminum foil on both facing sides)
2006
Phenolic composited with steel duct panel on stream in 2006.
2009
Quantity production of phenolic wall insulation panel in 2009.
2011
Fujian Tenlead Advanced Co., Ltd.
Production base moved to Longyan city in 2011 (with newer equipment and bigger production capacity).
2014
Aquired ISO 9001 & 14001 certificates in 2014.
2018
More product series on stream and more applications.
Products parameters
| Material | Phenolic foam |
| Density | 11-20kg/m³ 40-50kg/m³ |
| Pore space | 90-98% |
| PH value | 6.5-7.4 |
| Electrical conductivity(ds/m, 20C degrees) | 0.55 |
| Shrinkage | < 0.01% |
| Compressive strength(kpa) | 20-31 |
| Fully available water(%vol) | 50-61% |
| Water retention time(h) | 72-144 |
| Water retention capacity(%vol) | 50-91% |
Product Picture
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