Magnesium Petiole Sufficiency Lookup
Audit actual petiole Mg assays after explicit dry→fresh mass-basis conversion against caller same-basis stage band; no tissue sufficiency diagnosis, total Mg per plant or fertilizer recommendation.
Description
Dry- and fresh-mass tissue assays need a shared basis before band comparison.
Dry- and fresh-mass tissue assays need a shared basis before band comparison. Dry matter fraction converts concentration per dry mass to fresh-mass concentration.1
Enter nonempty aligned nonnegative Mg assays, positive fractions≤1 and two ordered nonnegative fresh-basis bounds. Return converted values and outside indices.
When to use Magnesium Petiole Sufficiency Lookup
Use Magnesium Petiole Sufficiency Lookup when you need to evaluate the supplied records under the calculation and evidence rules below. No assay quality, total plant Mg or fertilizer need is established.
Prepare the measured vineyard records, aligned lists and independently verified local limits or catalog requested. Keep units, crop stages and observation periods consistent.
How to use Magnesium Petiole Sufficiency Lookup and understand its results
- Prepare the measured vineyard records, aligned lists and independently verified local limits or catalog requested. Keep units, crop stages and observation periods consistent.
- Enter observedPetioleMagnesiumMgKgDry, callerDryMatterFractions, callerFreshBasisMagnesiumBandMgKg using the field table and calculation rules, then run the tool.
- Read convertedPetioleMagnesiumMgKgFresh, samplesOutsideCallerFreshBasisMgBand. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedPetioleMagnesiumMgKgDry | Observed petiole magnesium mg kg dry | list of number | Required |
| callerDryMatterFractions | Caller dry matter fractions | list of number | Required |
| callerFreshBasisMagnesiumBandMgKg | Caller fresh basis magnesium band mg kg | list of number | Required |
Enter nonempty aligned nonnegative Mg assays, positive fractions≤1 and two ordered nonnegative fresh-basis bounds. Return converted values and outside indices.
freshBasis=dryBasis×dryMatterFraction Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| convertedPetioleMagnesiumMgKgFresh | Converted petiole magnesium mg kg fresh | list of number |
| samplesOutsideCallerFreshBasisMgBand | Samples outside caller fresh basis mg band | list of number |
{
"input": {
"observedPetioleMagnesiumMgKgDry": [
1000,
2000
],
"callerDryMatterFractions": [
0.2,
0.25
],
"callerFreshBasisMagnesiumBandMgKg": [
200,
400
]
},
"output": {
"convertedPetioleMagnesiumMgKgFresh": [
200,
500
],
"samplesOutsideCallerFreshBasisMgBand": [
1
]
}
}Limitations and assumptions
No assay quality, total plant Mg or fertilizer need is established.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Petiole Potassium Sufficiency Lookup: Potassium assay results may be reported as elemental K or K2O. A common reporting basis is needed before comparing a petiole band. For a complementary task, use Petiole Nitrate Nitrogen Sufficiency Lookup: Nitrate and nitrate-nitrogen reporting use different mass bases. Nitrogen-equivalent conversion requires explicit compatible molecular masses.
References
-
Magnesium Petiole Sufficiency Lookup — tool.io
Similar or alternative tools
- Petiole Potassium Sufficiency Lookup
Potassium assay results may be reported as elemental K or K2O. A common reporting basis is needed before comparing a petiole band.
- Petiole Nitrate Nitrogen Sufficiency Lookup
Nitrate and nitrate-nitrogen reporting use different mass bases. Nitrogen-equivalent conversion requires explicit compatible molecular masses.