Klasmann-Deilmann, in collaboration with the research company Kytos, is spearheading a significant trial to advance the use of organic substrates for pepper cultivation. The project is focused on understanding how growers can transition from traditional mineral wool systems to new, sustainable alternatives without compromising yield or quality. A core element of this research involves a wood fiber and coco-based grow bag, which presents a different cultivation environment compared to rockwool.

​A key finding from the research is the need for growers to adjust their irrigation strategies. The organic Growbag requires more frequent watering with a slightly lower drip volume to maintain consistent moisture levels and support the crop’s vegetative development. This tailored approach is crucial for ensuring the plants continue to grow robustly and produce high-quality fruit. The trial is directly comparing the company’s recommended irrigation plan against a rockwool-style strategy, with promising results seen from both methods when applied to the organic substrate.

​Beyond irrigation, the trial is also delving into the intricate world of the plant microbiome. Kytos is utilizing its expertise to perform rapid scans of the microbial life within the irrigation water, drain water, and the substrate itself. This innovative analysis seeks to uncover how these factors influence the microbiome, which is a known contributor to plant health and resilience. The research aims to harness the natural benefits of a healthy microbial ecosystem to improve crop robustness and overall performance. This initiative highlights the industry’s shift towards more sustainable and biologically-driven cultivation practices, demonstrating how a deeper understanding of the root zone environment can lead to more resilient and productive crops. The findings from this trial are set to provide growers with the insights needed to confidently adopt these next-generation substrates.

SOURCE: New developments in pepper substrates