Plagron Cocos Perlite 70/30
Hydroponic growing with an airy mix
With Plagron Cocos Perlite 70/30, you are growing on a substrate that contains 70% coconut and 30% perlite. This means that you also benefit from the qualities of these two raw materials. With the fully buffered coconut, you are sure of a coconut substrate that meets the highest quality standards, with a low initial EC value. The perlite ensures rapid drainage and more oxygen. This prevents rotting, allows roots to develop even better and create a good basis for the transport of water and nutrients.
The coco coir in Plagron Cocos Perlite 70/30 is fully buffered. Unique about all Plagron coconut substrates, is that they are more buffered than comparable products. Unwanted salts are flushed out during several buffering steps. This guarantees that the nutrients in Cocos A & B can be absorbed under optimum conditions.
Because the coco coir in Plagron Cocos Perlite 70/30 is fully flushed and buffered, a low EC value is guaranteed. It is a given that you are growing with a coconut substrate that is clean and pure. Since all unwanted salts have been flushed out, your plant is prevented from having problems absorbing nutrients during growth and flowering. When Cocos A & B is given in the right dosage, it can be absorbed by the plant properly. The low EC-value also prevents a calcium deficiency.
There's a cool video for you here, but you'll need to accept marketing cookies first.
Plagron Cocos is calcium-buffered very well. The explanation that can increase the pH of the output might be: 1.) The tapwater quality: pH gradually increases over time when there are carbonates present. This can be tested by leaving the prepared nutrient solutions for 24h and measure the pH again. If it has increased, the problem is likely the nutrient solution in combination with tapwater. If the pH remains stable, it is caused by something else. 2.) Nitrate uptake: When plants are in their grow phase they consume more nitrate which increases the pH of the rhizosphere. To prevent too much pH-increase, increase the runoff volume for the next 2–3 irrigations. Water with nutrients until you achieve 25–30% runoff. Maintain consistent EC by always feeding with a full-strength nutrient solution (avoid plain water). Also, maintain pH 5.5-5.6 for nutrient solution.