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Manganese EDTA

Chelated manganese, the spine of photosynthesis. Low manganese makes the plant burn more nitrogen.

Category visual
Manganese EDTA: MicrosCategory guide. Not a package likeness.
Label rate

1 pt to 1 qt/ac at V6, optional V8 to VT on high-pH ground.

Delivered price

Free delivery. The price you see is the price you pay.

Manganese EDTA is quoted through your agronomist. It ships inside a program built off your soil test, so we price it against your acres rather than post a shelf number.

Guaranteed analysis

Chelated manganese (EDTA).

What it does

Manganese runs the water-splitting step of photosynthesis and the enzymes of nitrogen assimilation. Low manganese makes the plant burn more nitrogen to do the same work, because photosynthesis runs at partial throttle. It is phloem-immobile and locks up fast above pH 6.5, so foliar is the standard fix on high-pH and high-organic-matter ground.

What it will not do

Manganese is the spine

When manganese is short the plant burns extra nitrogen to run photosynthesis at partial throttle. Fixing manganese on a high-pH field is often the cheapest nitrogen you never had to buy.

Trial data and expected range

+19 bu corn

Foliar manganese added 19 bu of corn on the Atlantic Coastal Plain, 127 to 146 bu.

Source:
Uribe, Martens and Brann 1988
Confidence:
cited trial
Caveat:
Responsive high-pH Coastal Plain ground.

Tank-mix and handling

Avoid strong oxidizers. Jar-test with phosphates. Adequate water, no hot, dry midday spray.

Manganese EDTA usually ships inside the corn V6 photosynthesis pass. Build the whole program off your soil test and see it in context.

See the program