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Another important thing to take note of is the pot where the germination will take place. You may want to buy starter cubes that can withstand being soaked for a very long time. Rockwool has got to be one of those products that will not dissolve in water.
A lot of people are constantly put off when it comes to germinating cannabis seeds hydroponically. This is because of how time-consuming it is and how much effort it requires.
Step by Step directions for ontogenesis Seeds during a aquacultural System
But one thing they do not know is that growing seeds in a hydroponic system will minimize the damage the seeds can get through other methods of germination.
Inside your grow tray, you should invest in a heater or heating mat to maintain a temperature that will encourage growth in your seeds. Aside from that, proper lighting should be installed as well to help your seeds sprout.
Just be sure to use a paper towel that is nonporous. Using a porous paper towel will cause the cannabis seeds to cling to the pores of the paper towels.
The Kratky method makes hydroponic growing affordable, accessible, and easy. Growers can use a range of items to make these systems, including buckets and plastic boxes. The plants sit in net cups inserted into a lid, and the roots reach down into a nutrient solution below.
More recent, but still distant, examples of hydroponic growing involve the English scientist John Woodward in 1699. His work involved cultivating spearmint plants in water. He found that the plant species grew faster within a water source mixed with soil.
The nutrient film technique features a similar setup to the ebb and flow system. However, instead of occasionally flooding the growing tray, it provides a constant stream of water and nutrient solution to the roots. The reservoir contains an air stone to aerate the solution and an electric water pump to circulate the solution into the growing tray. The growing tray sits at a slight angle to enable the solution to flow downward and back into the reservoir after passing the roots.
Ebb and Flow
The wick system features a growing container filled with a medium and a separate reservoir that houses the nutrient solution. Some growers choose to fill the growing container with soil, whereas others opt for soilless media such as coco coir. These growing media feature gaps that allow oxygen to enter and aerate the roots—removing the need for an air pump.
Perlite is a volcanic glass that expands when exposed to high temperatures. It’s often used in garden soils to provide aeration, which is exactly why it’s beneficial to use as a hydroponic growing medium for cannabis.
Now that we have covered the history and benefits of hydroponic growing, it’s time to get things started. To begin, you’ll need to select a growing medium—a substance that will hold in place the intersection of the stem and roots. From this location, the roots will grow down into the water in search of nutrients. The inert medium also allows good air access to the top of the roots. There is a huge list of different media used by cultivators, with those below being the most common. Each medium has its own unique benefits, and some work better with different systems. It’s all about experimentation when starting out to see which works best for you.
Hydroponics is a method of cultivating plants, specifically cannabis in this case, in a solution of water and nutrients.