More frequent watering with peat-free substrate

The transition to peat-free cultivation is a significant topic in the horticultural sector. However, this shift brings new challenges, particularly in water management and plant health. One of the most notable issues is that peat-free substrates require more frequent watering. This impacts not only cultivation strategies but also the health of the plants. “Growers will need to put in more effort to achieve consistent product quality,” explains Twan van den Berg, Director of the Substrate Business Unit at Van der Knaap Group.

Why peat-free cultivation requires more water

Peat-free substrates, such as mixtures containing coir, wood fiber, or compost, have a different structure and water-retention capacity compared to traditional peat-based substrates. “The water and nutrient buffer is smaller than with peat, meaning water and fertilizers drain away more quickly. As a grower, you need to be more precise with watering and fertilizing,” Van den Berg emphasizes. “To address this challenge, we are conducting ongoing research and are, for instance, developing a new material that retains moisture more effectively.”

On average, peat-free substrates require about 10 to 20% more water and nutrients than peat-based substrates. This increased water usage can be a challenge, especially in times of growing drought and stricter regulations on water use.

The impact on plant health

Insufficient or irregular watering can significantly affect plant health. Too little water causes stress, making plants more susceptible to diseases and pests. Conversely, overwatering can lead to root rot and other moisture-related problems. Finding the right balance is crucial, particularly in peat-free cultivation, where the margin between too dry and too wet is often narrower.

How a porous cultivation floor helps

The ErfGoedFloor is an innovative solution that supports growers in addressing the challenges of peat-free cultivation. The floor allows for more precise watering. Its controlled drainage ensures excess water is quickly removed while providing plants with exactly the amount of water they need.

Cor Bremmer, Operational Director at ErfGoed, explains: “The ErfGoedFloor gives growers the assurance that their crops always grow in an optimal water and oxygen balance. This is essential, especially given the delicate balance required in peat-free cultivation.”

Moreover, the ErfGoedFloor contributes to better plant health by creating a stable and healthy growing environment. The floor prevents water stress, promotes the development of a strong root system, and reduces the risk of diseases such as root rot. “With the ErfGoedFloor, growers can rely on a system that is not only sustainable but also consistently delivers high quality,” Bremmer adds.

The ErfGoed WaterSystem: a valuable addition

In addition to the ErfGoedFloor, the ErfGoed WaterSystem helps growers further optimize their water management. This system ensures that plants receive the right amount of water and nutrients precisely when and where needed. Excess water is immediately drained and, after treatment, can be reused, contributing to efficient water use and reduced waste.

Sustainability and plant health go hand in hand

Peat-free cultivation aligns with the growing demand for sustainability in horticulture. However, sustainability goes beyond eco-friendly choices; it also encompasses the responsibility to produce healthy and robust plants. With the combination of the ErfGoedFloor and the ErfGoed WaterSystem, these two goals are achieved. The system helps growers use water more efficiently, improve the quality and health of their plants, and simultaneously take a step toward more sustainable cultivation practices.