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Author Question: Which if the following is true about a soil quality index (SQI)? A) Soil quality indices may be ... (Read 81 times)

jazziefee

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Which if the following is true about a soil quality index (SQI)?
 
  A) Soil quality indices may be used to monitor the effects of changes in soil management practice over time.
  B) The SQI must be related to a particular functional goal for the soil in the ecosystem.
  C) Soil pH, bulk density (Mg m-3 ) and soil active C levels (mg kg-1 ) may all be averaged together in a SQI.
  D) All of the above are true.
  E) None of the above is true.

Question 2

In recent years the annual productivity of slash-and-burn systems has tended to decline over that achieved by the traditional shifting cultivation systems of the past. To what is this decline most likely due?
 
  A) reduction in the C/N ratio of the soil organic matter
  B) reduction in the use of fertilizers
  C) increase in the period of food production in a given cycle
  D) failure to grow legumes in the cropping system
  E) decrease in the length of the fallow period


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meganlapinski

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jazziefee

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Reply 2 on: Jul 22, 2018
Great answer, keep it coming :)


atrochim

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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