Ensuring strong root development begins at the very first stage of planting. By carefully managing the interaction between the cube and the substrate, you can create an ideal environment for roots to grow and distribute effectively. Remy Maat, Manager Application at Cultilene, explains how to optimize root development during this critical phase.
Start with the right EC levels
Roots always grow where it is easiest to absorb water. This fundamental principle is key to guiding root development effectively. By ensuring that the EC in the substrate is slightly lower than the EC in the cube, you encourage roots to move into the substrate.
During planting, the water content in the cube will initially drop. This means that most of the root system will be within the cube during the first stage. To support optimal root growth, it is essential to match the target figures for the cube.
Focus on vegetative growth
During the first period after planting, the primary focus is to stimulate root growth. Increased watering frequency ensures the cube maintains the right water content, encouraging roots to grow out of the cube and into the substrate. This action is crucial for creating a well-distributed root system.
As the roots grow into the substrate, you can gradually reduce watering frequency. This allows the water content to decrease slowly. During this process, make sure there is close contact between the bottom of the cube and the top of the substrate. This will help facilitate root movement.
Overview of EC cube vs. EC substrate
Higher EC in the cube compared to the substrate: roots will move quickly into the substrate.
Equal EC in both cube and substrate: roots will move slowly into the substrate.
Lower EC in the cube compared to the substrate: roots will move very slowly into the substrate.
By creating the right conditions with EC, roots will distribute evenly, and the plant will establish a strong foundation for further development.
© Saint-Gobain Cultilene
Avoid overwatering and large dose sizes
To ensure even root distribution throughout the substrate, it's essential to avoid excessive watering or large irrigation doses. Overwatering can force roots to grow rapidly to the bottom of the substrate, limiting root distribution and reducing control later in the season. Instead, aim for a steady daily dryback of around 1.5%, allowing the root system to establish gradually and effectively, over the complete volume of the slab - from top to bottom, from left to right.
Using the right dose size also plays a crucial role. By working with correct, consistent doses, you provide the roots with the optimal balance of water, nutrients, and oxygen. This prevents the substrate from becoming oversaturated and helps maintain a healthy root system throughout the early stages of growth.
Sustaining root health throughout the season
Once the root system is established, maintaining it becomes crucial. Clear season-long and daily targets for irrigation and nutrient management help sustain healthy roots. Planned crop steering ensures the root system remains robust and supports optimal plant performance throughout the growing cycle.
From the start, working with the proper dose size enhances root distribution, growth, and the availability of water, nutrients, and oxygen. This sets the foundation for making the most out of your crop and achieving long-term success.
For more information:
Saint-Gobain Cultilene
Email: [email protected]
cultilene.com
