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from article Regolith
Diagram showing the components of residual regolith.
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from article Turnip
Purple Top turnip (Brassica rapa). (Credit: Stami Kieren Donovan; courtesy of Greenpatch Organic Seeds, Glenthorne, New South Wales, Australia)
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from article Dill
Flowering of dill (Anethum graveolens). (Photo courtesy of Forest and Kim Starr)
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from article Fiber crops
Cotton, the most important textile fiber crop grown in the world. (Photo by Gary Kramer, Natural Resources Conservation Service, U.S. Department of Agriculture)
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from article Agricultural soil and crop practices
A crop of wheat is harvested by a combine harvester, which is a key machine that helps to implement various agricultural soil and crop practices. (Credit: Orientaly/Shutterstock)
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from article Agricultural soil and crop practices
A farmer in a tractor plowing the land for sowing. (Credit: Oticki/Shutterstock)
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from article Agricultural soil and crop practices
A tractor pulls a tilling machine. Stubble remains on the cornfield after the previous harvest. The soil must be properly tilled and cultivated for spring planting. (Credit: Lynn Betts, Natural Resources Conservation Service, U.S. Department of…
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from article Agricultural soil and crop practices
A cotton stripper, which harvests a cotton crop by stripping both the cotton and bolls from the stalks. (Credit: David Hughes/Getty Images)
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from article Tree diseases
White pine blister rust (Cronartium ribicola) on eastern white pine (Pinus strobus). The blisters are masses of aeciospores (rust spores). (Photo courtesy of the Minnesota Department of Natural Resources Archive)
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from article Tree diseases
Chestnut blight on an American chestnut tree (Castanea dentata). This devastating disease is caused by Cryphonectria parasitica. (Photo by Joseph O'Brien, U.S. Department of Agriculture Forest Service)
