Nutrient Interaction Chart
Grower tool
Nutrients do not work alone.
Push one nutrient hard enough and you will move several others, sometimes in the wrong direction. This chart lays out which nutrients block each other, which genuinely support each other, and which only look connected on a Mulder diagram. Every line is marked with how well it holds up, because a lot of what gets passed around as fact is conditional at best.
The chart 31 relationships
Select any nutrient to isolate its relationships. Select it again, or press Escape, to go back to the full picture.
Interactions 0
Relationships are drawn from long standing agronomic literature and from the Mulder chart, which is a teaching diagram rather than a measurement. Anything marked conditional depends on pH, soil chemistry, nutrient form, rate, and crop, and will not hold everywhere. Use this to know what to check, not to justify a rate.
Next step
A chart shows what can happen. A tissue test shows what did.
If a nutrient keeps coming up short and the soil test says it is there, the answer is usually somewhere on this chart. Send us the soil and tissue results together and we will work out which interaction you are actually looking at.