A resilient plant thanks to a stable microclimate

A healthy plant is crucial for successful cultivation, and one of the most influential factors in this success is the microclimate. This specific, often subtle, interplay of environmental conditions significantly impacts the processes that determine a plant's health and resilience. Cor Bremmer, Operational Director at ErfGoed, emphasizes the importance of a well-managed microclimate: “A stable microclimate ensures that plants experience less stress and can more effectively absorb CO2 and nutrients, which directly enhances their resilience.”

What is the microclimate?

The microclimate refers to the specific environmental conditions surrounding a plant. "It's more than just temperature or humidity," Bremmer explains. "It's the combination of airflow, temperature fluctuations, and even soil conditions that directly affect the processes within the plant. The microclimate is vital for a plant because it determines its ability to absorb CO2 and essential nutrients and grow."

The crucial interaction between humidity and transpiration

One of the most important elements of the microclimate is humidity, which plays a direct role in regulating the stomata on the plant’s leaf surface. Stomata open when humidity is sufficiently high, allowing for CO2 uptake and transpiration. Transpiration is critical because it enables plants to absorb water and nutrients. Bremmer explains: "If the humidity is too low, the stomata close, and growth stops. On the other hand, if the humidity is too high and there’s no airflow, plants can no longer absorb water, leading to nutrient deficiencies and eventually growth problems."

But why is transpiration so important? Bremmer clarifies: "Transpiration drives the uptake of water and nutrients. Plants have an internal transport system that operates based on water flow. As water moves from the roots to the leaves, nutrients such as calcium are absorbed from the soil. This process depends entirely on the rate of transpiration."

Temperature control for healthy roots

In addition to humidity, temperature plays a crucial role in the microclimate—not just the air temperature but also that of the roots. "A stable root temperature is essential for a healthy plant," says Bremmer.

Bremmer further explains, "By maintaining a constant floor temperature, we can stabilize the environment around the roots. This not only aids in water and nutrient absorption but also prevents plants from experiencing stress due to temperature fluctuations. The temperature in traditional concrete floors or cultivation tables often rises during the day. However, with an ErfGoedFloor, the temperature remains lower because the stone in the floor retains moisture. As the moisture evaporates, the floor stays cooler, which is also beneficial for maintaining stable humidity levels."

Stable humidity results in less vulnerable plants

A stable microclimate can also help prevent disease. Plants exposed to fluctuations in temperature and humidity are more susceptible to fungi and other pathogens. Bremmer points out: “When the microclimate remains stable, you avoid condensation on the crop or flowers, reducing plant stress and keeping them better protected against diseases.”

How a well-managed microclimate leads to resilient plants

The combination of stable temperature, adequate humidity, and consistent transpiration forms the foundation for healthy plants. When these factors are properly aligned, plants can grow optimally and are better equipped to withstand external stress factors. Bremmer sums it up well: “The microclimate is the silent force behind successful cultivation. When managed effectively, it creates an environment where plants can thrive without constantly compensating for environmental fluctuations. By being mindful of the microclimate, growers can not only improve the health of their crops but also optimize yield and quality.”