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7 Cards in this Set
- Front
- Back
what does this picture represent |
Irrigation. |
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what does soil contain? |
Humus, organic particles, and mineral particles. |
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if a plant uses more phosphorus and less nitrogen what kind of plants can it be matched with? |
a plant that doesn't use as much nitrogen and uses more phosphorus. |
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define: plowing? |
plowing is the process of turning the bottom layer of soil over to the top. |
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what happens if you grow 1 crop in 1 area over and over again? |
the soil would run out of nutrients unless you change the crop every year. |
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what is the process of changing crops grown in an area every year called? |
crop rotation. |
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crop rotation makes the soil unhealthy. true or false? |
false. |
