THOMAS SCHNEIDER / AGSTOCKUSA / SCIENCE PHOTO LIBRARY THOMAS SCHNEIDER / AGSTOCKUSA / SCIENCE PHOTO LIBRARY
Applying fertiliser. Manure being deposited over corn stubble in a field by a spreader being pulled by a tractor. Animal manure is usually ploughed into farmland before new crops are planted, as it replenishes nutrients that have been lost from the soil. Photographed during spring, in Wastenaw County, Michigan, USA.
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