Different soils from various composts
The respective compost raw materials are combined with soil to form small triangular piles and thoroughly mixed. Due to the small cross-section of the piles and regular turning (daily during the first week, then three times a week), 100% oxygen supply is ensured. If there is a risk of oversaturation (e.g., prolonged rainy periods), all piles are covered with fleece. The temperature in the piles rises rapidly and then subsides after 4–6 weeks. The cooled piles are then used for soil maturation.
Acidic Compost
For the production of organic moor peat soil, an acidic organic compost is required. Since this product is also used for blueberries, it is produced in organic quality (i.e., free of sewage sludge). The compost raw materials consist of shredded green and shrub cuttings, milk sludge, and organic mineral powder. To achieve acidification, an appropriate amount of elemental sulfur is added.
The respective compost raw materials are combined with soil to form small triangular piles and thoroughly mixed. Due to the small cross-section of the piles and regular turning (daily during the first week, then three times a week), a 100% oxygen supply is ensured. If there is a risk of oversaturation (e.g., prolonged rainy periods), all piles are covered with fleece.
The temperature in the piles rises rapidly and then subsides after 4–6 weeks. The cooled piles are then used for soil maturation.
Soil maturation
After composting, the individual small piles are combined into larger piles and remain there for up to a year for better maturation. During this time, the material is turned 4 to 5 times with a wheel loader to achieve 100% homogeneity and maturity. During soil maturation, the principle of product orientation is maintained—the different composts are each combined into their own soil piles.
Sieving
Only after soil maturation is the now well-matured compost mixed with individual additives (e.g., sand or clay), and the finished soil mixture is then sieved. Different mesh sizes are used depending on the product—for example, 8 mm for seedling soil, 15 mm for raised bed soil or lawn soil, and 25 mm for humus or potting soil.
Want to learn more about production and composting? During our company tour, you can discover more about these interesting and complex processes:
Product Manufacturing
Strict attention is paid to the cleanliness of the additives—especially weed-free quality! For the production of outdoor soils, only pure sands and clays are used, not any field soils with unknown exact composition. Competent and reliable partners have been selected to supply all additives such as various sands or clays, enabling us to consistently deliver high-quality finished soil products. The blending of the different products takes place in batch operations on piles using a turning device, and then a second time through our trommel screen during the subsequent sieving process.
In addition to our 25 standard products, which are always in stock, we are also happy to produce custom blends for special applications—there is no soil request we cannot fulfill!
Bagging
With our new bagging line, the products produced in this way are then fully automatically packaged, the pallets are wrapped once more for protection, and prepared for delivery. Our machine can fill and palletize bags of any size between 5 liters and 50 liters. Since we now have the entire production chain in-house, we can respond quickly and flexibly to customer requests.
Ongoing quality control includes incoming inspections, continuous monitoring of the mixture and moisture levels, temperature tracking, and pH measurement when needed. Additionally, the compost piles are regularly checked for their gas composition, with data collected on CO2, O2, and CH4 levels within the pile.
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