![]() ![]() ![]() ![]() Terracycle – a popular brand of worm tea – for example lists NPK ratios in the range of 1:1:1 (this varies slightly amongst their different products). Some people report being able to use worm tea successfully in a hydro system, although the addition of other organic fertilizers (such as bat guano and kelp) may be necessary since worm castings have relatively low nutrient levels on their own. That being said, there IS a growing (no pun intended) interest in the concept of ‘organic hydroponics’, and various organic nutrient solutions – including those usings worm castings – are indeed available for purchase. In most cases the nutrient solutions contain a specifically-formulated (for the particular plants being grown) inorganic fertilizer, and considerable effort is made to keep the process as sterile as possible to reduce the chances of diseases developing.īoth of these characteristics (inorganic & sterile) essentially run counter to the rationale for using worm castings / worm tea – since they are organic fertilizers (although not necessarily “certified organic”), and one of the benefits is the rich microbial community present. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel or Rockwool”. “Hydroponics is a method of growing plants using mineral nutrient solutions instead of soil. Your question inspired me to do some more research to see what I could dig up.įirstly, while I’m confident that most people know what hydroponics is, for the benefit of those who don’t, here is how Wikipedia defines it: That’s a very interesting question and something I’ve also wondered about, but have yet to test out myself. “Can you use worm tea for hydroponics?” ~ Jacinta Lederhose ![]()
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