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Photograph the field to identify the problem

Photograph the whole plant, a close-up and the soil surface, then match them to the field guide. Try to keep soil trouble apart from disease and spray injury.

Whole plant or the bed

Get the whole plant or a full row in frame

Don’t shoot only sky or a shoe

Shoot it like this: the whole plant or a full row is in frame, so you can tell a patch from the whole bed.
Shoot it like this: the whole plant or a full row is in frame, so you can tell a patch from the whole bed.
Not like that: only sky, or only a shoe tip.
Not like that: only sky, or only a shoe tip.

Leaf or root close-up

Focus on the blade or the root tip

Blurred, or black against the sun

Shoot it like this: focus on the blade or the root tip, so leaf position and colour are clear.
Shoot it like this: focus on the blade or the root tip, so leaf position and colour are clear.
Not like that: blurred, or black against the sun.
Not like that: blurred, or black against the sun.

Soil surface

White crust, cap, standing water — keep them sharp

A distant landscape

Shoot it like this: white crust, cap or standing water — keep them sharp.
Shoot it like this: white crust, cap or standing water — keep them sharp.
Not like that: a distant landscape, soil surface not visible.
Not like that: a distant landscape, soil surface not visible.

Step 4 (optional): the lab sheet

Keep pH, EC and organic matter readable

Photo of the sheet

Keep pH, EC and organic matter readable

Glare that hides the numbers

I’ll type the numbers (steadier than guessing from a photo):

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Missing the whole plant — can’t tell patch from whole bed.

Missing the close-up — leaf position and spots are unclear.

Missing the soil surface — white crust, water or cap can’t be seen.

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