![]() Rockwool can receive large volumes of irrigation without water-logging the plants due to its ability to drain well. If the top surface of the rockwool does not feel really moist, then you can limit algae growth on the top surface due to low surface moisture. If you are using an automated watering system then using dripper stakes on the top of the rockwool block is ideal. Individuals who hand water will take care to water the top of the rockwool block and let the water soak through. When the rockwool is ready for use, any top watering will work well. Rockwool cubes soaking in a light nutrient solution in a rubbermaid tote. Grodan also has a brand known as ParGro which is an alternative to Grodan. ![]() Companies like Grodan and Cultilene are more known for creating stone or mineral wool that is used in cultivation. Rockwool is actually a company name that went on to become the generic term for this type of product material known as stone wool (8). Also, there are no beneficial microbes and they may have slower initial growth as there are lower levels of carbon within the substrate until plant growth has been established. Since rockwool is inert, there are no naturally occurring nutrients such as potassium which is sometimes found in coco. The high temperatures used during the manufacturing process render the substrate inert. Other forms of stone wool such as granulate is available and can be added to various potting mixes to improve aeration or tilth. The fibers are then compressed into large mats which can then be cut into the various cubes, blocks, and slabs that growers are familiar with and are held together using a binding agent (4). Rockwool is a naturally alkaline growing medium that is manufactured by taking basalt rock and melting it at an extremely high temperature (3000☏+) and then blown and pushed into a large spinning chamber that pulls and spins the material into fibers. ![]() This material is identical to rockwool and can be found in Hawaii where conditions can be ideal. Did you know? Pele's hair is basaltic glass fibers or strands that are formed from lava ejected from volcanoes into the air and being blown by the wind which stretches and cools them (5).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |