Calculator PPM for hydroponic fertilizer solutions.

You probably read or heard about the term Total Dissolved Solids (TDS) – the total mineralization of the solution, or Nitrogen PPM – parts per million of nitrogen as a control factor in creating the right solution fertilizers.
So where did they come from and how to calculate them?
Labels on bottles of fertilizers do not give the full picture. The most we can learn from the label on the composition of fertilizers is of N, P2O5and K2O in terms of N-P-K.
If there is sufficient knowledge of, say four years of Department of Chemistry, then knowing N-P-K and correctly using the periodic table, a specific mass can be calculated values TDS and Nitrogen PPM.
Our calculators can help you to calculate those values, and without a master’s degree in chemistry.
Note: These values relate only to the main components, so that any impurities or trace elements in fertilizer will change the TDS, as well as any salt dissolved in your water. And according to this, you should know exactly, what might flows from your tap. This information can be obtained from your municipality.

Managing nitrogen

The more I learn about orchids, and studying their nutritional needs, it becomes obvious that there are two main factors be considered:
1. The presence of a number of nutrients, from macro to micro, micronutrients and vitamins.
2. The amount of nitrogen that the plant is supplied.
If you are using a well-balanced complete fertilizer, then the first criterion will be quite satisfied, so that you will only focus on nitrogen.
Studies, University of Texas showed that Phalaenopsis, growing in their greenhouses in the substrate, based on the tree barks optimal for growth and flowering were nutrient solutions with a nitrogen content from 225 to 250 PPM.
Given that at home in home greenhouses difficult to provide sufficient light output (average values generally low), as well as average temperature, and the fact that amateur collections are rich in plant species diversity in collection, where under one roof, as there are “heavy consumers” like Wand and shoes that do not like a lot of salt in solution – I choose the much lower values of nitrogen in the range from 100 – to 150 ppm.
The following simple calculator allows you to calculate the required concentration of your solution on the content of nitrogen in your fertilizers and the required values of N ppm.Note that this calculator has been specifically designed for liquid fertilizer, but not for the powder mixtures.