Can hydroponic growers use organic fertiliser?

Yes, hydroponic growers can use organic fertilizers. Organic fertilizers are derived from natural sources such as plant or animal matter and are typically rich in essential nutrients that plants need to grow. Organic fertilizers can be a good choice for hydroponic growers who are looking for natural and sustainable ways to feed their plants.

There are several types of organic fertilizers that can be used in hydroponics, including fish emulsion, worm castings, compost tea, and seaweed extract. These fertilizers can be added to the hydroponic nutrient solution or used to supplement the nutrient solution in between regular feedings.

It's important to note that the use of organic fertilizers in hydroponics may require some adjustments to the nutrient solution and pH levels. Organic fertilizers may contain microorganisms that can affect the pH of the nutrient solution, so it's important to monitor and adjust the pH as needed. Additionally, organic fertilizers may break down more slowly than synthetic fertilizers, so they may need to be applied more frequently or in larger quantities to ensure that plants are getting the nutrients they need.

Overall, hydroponic growers can use organic fertilizers as long as they take the necessary precautions and make adjustments to ensure that the nutrient solution is balanced and pH levels are appropriate for the plants being grown.