Virtual Labs

Soil Analysis-Determination of Available Organic Carbon content in the Soil

Decayed plant and animal tissues to fairly amorphous brown to black material are called ---------

a: Subsoil Explanation

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b: Regolith Explanation

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c: Soil Humus Explanation

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d: Bedrock Explanation

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Soil organic matter contains .......Nitrogen.

a: 5 % Explanation

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b: 70% Explanation

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c: 0.5 % Explanation

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d: not present in soil Explanation

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Which of the following element is not present in the soil organic matter.

a: none of these Explanation

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b: Phosphorus Explanation

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c: Sulfur Explanation

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d: Nitrogen Explanation

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Which of the following is a main significance of soil analysis?

a: It increases the knowledge of what nutrients are especially available in our soil and the efficiency of resource inputs such as fertilisers and water. Explanation

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b: It increases the environmental impacts due to soil amendments. Explanation

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c: It doesn't helps to evaluate the fertility status of soils of a country or a state or a district. Explanation

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d: It doesn't helps to predict the nutritional values needed for crop production. Explanation

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The term "Organic Soil" is used for ...........

a: Soils with less than 12-18% organic carbon Explanation

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b: Soils with more than 12-18% organic carbon Explanation

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c: Soils with more than 20-25% organic carbon Explanation

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d: Soils with more than 1-10% organic carbon Explanation

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