'NPK calculator" for check the ratio of elements available in your solution

[buhip776]

Hello. i find this app in apple store, there is their website npkcalculator.com. They said that you can optimizing the ratio of macronutrients and micronutrients in your fertilizer solution for use in hydroponics. So you can Prevent fertilizer burns and nutrient lock-out. get more better yield , smells and more essential oils. Did someone use that program ? thanks