Robert Bergman is an Amsterdam-based marijuana grow expert who has years of experience from small grows to massive operations. Now, Robert is dedicated to sharing his knowledge with the world.
Marijuana Grow Course
The abbreviation EC stands for Electric Conductivity. The EC value represents the salt content – or the amount of nutrients in the soil or in the water – you’re giving your plants. You use three different types of fertilizers during the growing and flowering stage. During the growing stage, plants need
Marijuana Grow Course
The abbreviation EC stands for Electric Conductivity. The EC value represents the salt content – or the amount of nutrients in the soil or in the water – you’re giving your plants. The pH scale ranges from 0 to 14. The pH value of pure water is 7. We call this
Marijuana Grow Course
Fungi and diseases are very annoying and they can cause major damage to your marijuana plants. Most diseases are very treatable, but there are some you can’t stop. Bud rot starts inside the bud, which is therefore invisible until it’s in an advanced stage. Root rot is generally
Marijuana Grow Course
Some growers prefer to trim their weed before drying it. In my opinion, the biggest disadvantage of this method is that the plant won’t develop the buds during the drying stage any further, so you’ll end up with a lower quality and a smaller yield. But it does
Marijuana Grow Course
Everyone knows by now that DNA is the molecule that contains all genetic information. All living organisms have DNA. In nature, the exact content of the DNA is determined by natural selection (with evolution as a result) and in marijuana cultivation by selection of the grower. Selecting the best plants
Marijuana Grow Course
The abbreviation EC stands for Electric Conductivity. The EC value represents the salt content – or the amount of nutrients in the soil or in the water – you’re giving your plants. Demineralized water is purified water that contains no minerals or salts. This has an EC value of 0 and
Strains
Contrary to how movies depict cannabis buds, they come in various colors outside their typical green, dried-tea leaf look.
Marijuana Grow Course
During this course I will teach you exactly how to germinate your marijuana seeds. Before you start growing, it’s nice to already have some basic knowledge on growing marijuana plants. In the Introduction to growing marijuana section I’ll familiarize you with growing marijuana, I’ll tell you what
Marijuana Grow Course
The leaves of marijuana plants are covered with stomata. These stomata are only found on the underside of the leaf and aren’t visible to the naked eye. They let CO2 in and let oxygen and water out. The plant has a very sophisticated system to open and close its
Marijuana Grow Course
The leaves are the most important organs of a marijuana plant, because this is where photosynthesis takes place. In this process sunlight causes the leaves to create sugars out of water and carbon dioxide. In addition, the leaves keep a water flow going inside the plant through evaporation and capillarity.
Marijuana Grow Course
Eventually, every grower will experience bugs. It’s especially hard to protect your plants against bugs outside. But also indoor growers will be bothered by them. Probably no grasshoppers or slugs, but very small insects such as spider mites and thrips will always find a way to your plants. Fortunately
Marijuana Grow Course
A plant can create its own food from water, CO2 and sunlight. But to optimally grow and flower, the plant needs additional fertilizers. Outside, in nature, plants get their nutrients from the soil, which is rich in minerals, and dead plants and animals provide the necessary fertilizers. If you’re