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26 July, 01:05

Explain how soil structure affects the physical properties of soil

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  1. 26 July, 01:16
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    Plants obtain most of their oxygen and carbon from the air by photosynthesis; and hydrogen is obtained, directly or indirectly, from the water in the soil. These three elements together make up over 90 percent of fresh plant tissue. However, plants cannot survive without the much smaller quantity of essential nutrients that they obtain from the soil, such as nitrogen, phosphorus, potassium, calcium, magnesium and sulphur.
  2. 26 July, 01:31
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    a. Horizonation Soil "horizons" ar

    Transitional horizons are dominated by properties of one master horizon, but have subordinate properties of another. AB and B/C are examples of transitional horizon designations.
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