Grodan improved GRI 22.5 stone wool block

Grodan improved GRI 6.5 stone wool block.  Grodan improved stone wool is the latest developed product of Grodan. The GRI products offer you an optimum result throughout the cultivation. Grodan improved GRI 22.5 stone wool growing block uses a new Advanced Wetting Agent. These leading edge Grodan stone wool blocks have the optimal fiber structure and physical proper- ties for crop uniformity, more even Water Content (WC) and Electrical Conductivity (EC) distribution throughout the entire block, and the greatest steering capabilities available. Water distribution is more uniform throughout the entire block which is the basis for a well-defined root system with higher capaci- ties for water and nutrient uptake to produce robust and vigorous crops. These benefits translate to higher yields, improved quality, less water and nutrient usage, and reduced sensitivity of the crop to diseases. Key features GRI 6.5; New and improved wetting agent and hydrophilic technology greatly enhances the water characteristics of Grodan Gro-Blocks Improved giving even better water distribution over the height of the block. This results in greater plant development and steerability and more efficient use of water and nutrients. Optimized wool structure allows for faster rooting-in and nutrient solution replenishment, all while the Gro-Block Improved maintains its structure, firmness, and rigidity throughout the growing process. Can be used and ordered with planting hole or without. growers can choose to combine it with GRI4 or GRI 6.5 or go direct from Grodan AO plug into the GRI22.5. This item has NO planting hole