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Avatar for kaytrance
Jun 1, 2020 1:28 PM CST
Latvia
Hello

I am trying to experiment and grow mint without soil. In local stores there are no ready-to-use hydroponic nutrient solutions available to buy, but there are quite a lot of something like a liquids that you can add in time to time when watering your plants to help them grow (I don't know exact word how these liquids are called, I will call it liquid fertilizer). Here's an example of one I have, it's recommended to add 3 cups per 10L of water once per week when watering your plants.

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My questions are:
1. Can that liquids+water be used as hydroponic nutrient solution?
2. If they can then by given NPK ratio and other mineral ratios what would be recommended water-to-liquid-fertilizer ratio to use?

Thank you!
Avatar for oneeyeluke
Jun 2, 2020 1:05 AM CST
Name: one-eye-luke US.Vet.
Texas (Zone 8a)
Quitter's never Win
Birds Cat Lover Dog Lover Hummingbirder Organic Gardener
Hydroponic solutions are different from liquid fertilizers. In hydroponic solutions you will have a 3 part series. Micro, Grow, and Flowering nutrients. When growing plants the plant will need different nutrients at different times during growth. When the plants are just starting out in seedling stage you give them all 3 parts. When the plants become robust in vegetative stage they use more nitrogen or Grow nutrient. Lastly when they start flowering you give them more flowering nutrients. So the starting mix would be 2-2-2 ml, and then 2-4-2 ml for veg, and last 2-0-4 ml for flowering per gallon of water.
Now as far as your nutrient bottle, the only way to know for sure if its complete, is to give it a try, but start out very low. In Hydroponics you need to monitor the pH and the EC with meters. These meter are worth their weight in gold because of how reliable and inexpensive they are. Good luck, and if you have any questions you can tree-mail me anytime.
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NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌
Avatar for kaytrance
Jun 2, 2020 1:28 PM CST
Latvia
Thank you for your answer, I will give it a try.
I have PPM meter, but as far as I know it is not very reliable, you have to know conversion ratio to convert PPM to EC, and it may be different from where PPM meter was produced. I have some noname from aliexpress, but just for measuring interest I will mix and measure every time.
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