By Julie Kerr Casper
Explores the most very important makes use of of the land: the construction of agriculture. This ebook is helping readers research that farms and ranches produce even more than nutrition; yet scientists, farmers, ranchers, and different landowners have not solved conservation difficulties - but.
Read or Download Agriculture: The Food We Grow and Animals We Raise (Natural Resources) PDF
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Additional info for Agriculture: The Food We Grow and Animals We Raise (Natural Resources)
Some of the most common are potatoes, carrots, beets, turnips, onions, garlic, lettuce, asparagus, green beans, cabbage, squash, pumpkins, corn, green peas, peppers, and sweet potatoes. In many places across the United States, farmers collect the produce they have grown and sell it at farmer’s markets, which are very popular because the produce is always fresh. 17 18 agriculture A combine harvester cultivates a wheat crop. S. Department of Agriculture) Although modern agriculture is much more efficient and more food can be produced today than ever before, sometimes there are drawbacks.
Gully erosion happens when thin water columns quickly remove the soil from an area. Saltation erosion is the removal of soil and minerals by wind, water, or gravity. Overuse and erosion of the land can rob the soil of valuable nutrients, making it unproductive. Every year in the United States, thousands of acres of arable land are lost. Between 1990 and 2000, the United States lost almost 44 million acres of arable land. Some of this land was lost because homes, parking lots, and other structures were 33 34 agriculture Unchecked water erosion in a field.
Cattle can be fed hay or can graze in a pasture. They eat by moving their heads and tearing the grass in the pasture, because they do not have cutting teeth to bite with. Cattle can also be fed cracked corn. Farmers also put out salt and mineral blocks for the cattle to lick. 15 16 agriculture Rectangular bales of hay produced from a baler. S. Department of Agriculture; photo by Ken Hammond) concepts of agriculture Sheep are another common farm animal. There are about 800 breeds of domesticated sheep in the world.