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To start successful cannabis cultivation the Starter Plugs are a must. In order to reach the best results, it is recommended to follow this easy yet important instruction guide with attention to the small details.
Starting with the soaking; as can be seen in the figure, the plugs should be soaked for 10 seconds, in a nutrient solution with an EC of at least 1.5 mS/cm and a pH of 5.5 to 5.8.
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Following, the second step is, depending on what you use for propagation, to insert the seed or place the cutting into the plug. When using cuttings it is recommended to dip them in a rooting hormone and make sure the cuttings used are uniform in length, diameter, and a number of leaves. Once it is done, the plugs should be placed on a tray under high humidity of 95%.
Next, as the figure illustrates, during the first days mist occasionally to keep moist but do not over water. Check the water content (WC) of the plugs, it can be done by weighing them. Once the WC is at 50%, irrigate with an EC of 1.5 mS/cm. That will enhance root development.
Finally, when the roots have grown and are visible from the plug, similarly as in the figure below, the light levels can be increased and the irrigation strategy should be adjusted as the plant will uptake more water. The complete propagation phase usually lasts around 10 to 14 days, and then the roots are fully developed within the plugs. Then the plugs can be transplanted into Growing Blocks.
The AO-Starter Plugs are 1.4 X 1.4 X 1.6”, or, 36 X 36 X 40 mm in size, and they come in 84 units per sheet. They are also available in trays with 77 units.
For further information about how to propagate cannabis best please check this article for further propagation instructions. Please check this page for more information about the different Starter Plugs Cultiwool offers.
On this website you will find more information on our stone wool substrates and instructions for optimum use! If you have any question, remark, or request, please feel free to contact us here, or via our Facebook and Instagram accounts.
In professional greenhouse horticulture, growers often perform side-by-side trials to evaluate which substrate best supports their crop and cultivation strategy. A well-designed trial improves decision-making and helps identify the most efficient and reliable solution for consistent production.
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There are many aspects affecting the decision of which substrate to use, among these crop types and cultivation stages. Similarly to the way soil mixtures can be amended and customized, so are stone wool products tailor-made for the cultivation of a specific variety of crops. Stone wool can be manufactured in such a way that the density and orientation of the molten rock fibers determine the moisture holding capacity, air-filled porosity, and moisture gradient within the blocks.
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From a young age, we were taught not to try to fit a square into a circle. Child games utilizing different shapes emphasized this even more with specific shaped objects only fitting in the same shaped hole. And thus comes one of the most common stone wool questions we get. Why do people use a square propagation plug (AO) when the hole in the block is round? Well, there are a couple of different reasons why one might choose to use either a square Cultiwool plug (AO) or a round Cultiwool plug (i.e., macroplug). This article will elaborate on these reasons;