The science behind your No.1 growing power

Understanding and Mitigating Channeling in Stone Wool Substrate

Stone wool substrate has gained popularity in horticulture due to its excellent water retention and air porosity characteristics, which are essential for healthy plant growth. However, one common issue that growers often encounter when using stone wool is channeling. Channeling refers to the inefficient distribution of water and nutrients within the substrate. In this article, we will explore what channeling is, what typically happens when it occurs, how to identify its signs, and discuss methods to prevent it. We will also delve into why some stone wool products are more prone to channeling than others and explore the role of binders and wetting agents. Finally, we will touch upon the importance of choosing the right irrigation system to avoid channeling.

Magnesium Deficiency in Cannabis in Relation to Light Strategy

Cannabis cultivation is a complex process, with many different factors affecting the growth and development of the plant. One of the most important aspects to consider to allow cannabis plants to thrive is the nutrient balance within the growing medium. Among these essential nutrients is magnesium, a mineral that plays a critical role in plant growth and development. In this article, we'll take a closer look at magnesium deficiency in cannabis cultivation. This article is the last one of the sequence written following an interview with Ryan Wankel.

Dry Backs and Their Benefits for Your Cannabis Cultivation

“I think dry backing is probably one of the techniques that a lot of growers use to increase cannabinoids and flavonoids content” Ryan mentioned. But how does it work and what does it really mean? This article is a continuation of the previous one, following an interview with Ryan Wankel, and will focus on the cultivation manipulation known as Dry Backs.

Nutrients for Cannabis Cultivation on Stone Wool

The Daily Dynamics Within the Root Zone of a Cannabis Plant When Grown on Stone Wool

Previous articles have presented, among others, information regarding the importance of irrigation strategies, crop steering, measuring WC and EC in the stone wool, and more. In this article we discuss the ideal 24-hours irrigation dynamics for cannabis cultivation on stone wool.

Precision Growing; What Should be Measured in the Substrate, How to Do That, and Why?

The importance of WC, EC, and pH for cannabis cultivation was discussed in previous articles. As it was mentioned, there are several target levels to maintain in the stone wool; WC between 50 to 90%, EC of minimum 1.5 mS/cm in propagation, and about 2.5-2.8 mS/cm for the solution during vegetative to flowering (and an EC of the substrate between 3 to 6 mS/cm), and a pH between 5.5 to 5.8.

Stone Wool Saturation: Why it is Important and How to do it Right

Similarly to other growing media, when stone wool is delivered it is dry, meaning, it contains 0% water. In comparison to other substrates, stone wool has many advantages, such as lighter weight, a great moisture holding capacity, more convenient transportation, and longer shelf-life for unused products. Therefore, when a grower plans to start the cultivation of cannabis, the first step (and a very critical one) is to initially saturate the stone wool.