Plant analysis for testing nutrient levels in corn
Moderate
Diagnostic/tissue-testing article
Guidance/extension
Corn
Chlorine / Chloride
Iron
Zinc
Abstract
Plant analysis is an excellent “quality control” tool for growers interested in high-yield crop production. It can be especially valuable for managing secondary and micronutrients that don’t have high quality, reliable soil tests available, and for providing insight into how efficiently you are using applied nutrients. Plant analysis can be used by Kansas farmers in two basic ways: for diagnostic purposes, and for monitoring nutrient levels at a common growth stage. Diagnostics can be done any time, and is especially valuable early in the season when corrective actions can easily be taken. Monitoring is generally done at the beginning of reproductive growth.
Outcomes reported
Diagnostic
Nutrient uptake
Yield response & Application
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Absolute yield increase
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Percent yield increase
Statistical significance
Not reported
Response type
Not reported
Method
Not reported
Rate
Not reported
Timing
Not reported
Soil characterisation
Soil Type
Not reported
Texture Class
Not reported
Soil Order / Classification
Not reported
Soil pH — Mean (range)
Not reported
Organic Matter — Mean (range)
Not reported
Organic Matter Unit
Not reported
Critical thresholds reported
Soil — DTPA Extraction
Nutrient
Critical Level
Unit
Soil Test Method
plant tissue
Nutrient
sufficiency range
Unit
Tissue Type · Growth Stage
|
Economic analysis
Metric
Value
Unit
Currency · Basis · Price Basis
Synthesis
Key insight
None reported
Limitations
None reported
