There was no wilting in PhytaTrayTM boxes during the observation period and the positive effects of the granules were evident in the excessively moist PhytaTrayTM boxes, where thegranules made the soil structure more favorable for plant growth and absorbed excess water. All plants on excessively moist PhytaTrayTM trays with pure substrate died (photo1),whereas the plants growing on ...

  We carried out tests on the growth substrate developed and manufactured by Novigo OÜ at our greenhouses at Laagri (see photo). We received ca 800 L of granules and substrate from Novigo OÜ. To test the granules/material we planted 100 pre-grown cucumber plants into the Novigo substrate. The irrigation mode met the conditions we ...

  Simultaneously with the experiment at Estonian University of Life Sciences, an analogous growth substrate/granule experiment was carried out at Tallinn University, using a different methodology – the loss of water at high temperatures was estimated by the “pot weighing method.” Conclusions Adding the granules increased the water capacity of the substrate by more than ...

  The aim of the experiment was to compare and estimate (i) the water retention capacity of granule/sand mixtures of different proportions and (ii) absorption of the most important nutrients (NPK) provided by the granules. L100 – 100% sand, GR100 – 100% granule, L25 – 25% sand and 75% granule, L50 – 50% sand and ...