Tag: natural resources and agriculture

Questions Related to natural resources and agriculture

The high protein content of legumes(pluses) is correlated with.

biology natural resources and agriculture manure manures and fertilisers role of organic manures in soil management

  1. Application of fertilizers to the soil

  2. Nitrogen content of the soil

  3. Nitrogen-fixing bacteria present in the roots

  4. Their tropical or temperate origin

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Correct Option: A

"Fish meal" is widely used as which among the following?

biology natural resources and agriculture manure manures and fertilisers role of organic manures in soil management

  1. Cost effective Food

  2. Poultry Feed Additive

  3. Organic Fertilizer

  4. Bird food

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Correct Option: C

Which one of the following nutrients is not available in fertilizers ?

biology natural resources and agriculture manure manures and fertilisers role of organic manures in soil management

  1. nitrogen

  2. phosphorus

  3. iron

  4. potassium.

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Correct Option: C
Explanation:

Nitrogen, phosphorus and potassium (NPK) are the major source available in fertilizers. The most common synthetic fertilizers used in India are super phosphate, urea, calcium ammonium nitrate, ammonium sulphate and NPK fertilizers. 

Fertiliser obtained from sea birds along the coast of Chile and Peru is

biology natural resources and agriculture manure manures and fertilisers role of organic manures in soil management

  1. Guano

  2. Bone meal

  3. Dung

  4. Urea

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Correct Option: A
Explanation:

Guano is the accumulated excrement of seabirds and bats. As a manure, guano is a highly effective fertilizer due to its exceptionally high content of nitrogen, phosphate and potassium: nutrients essential for plant growth.Seabird guano consists of nitrogen-rich ammonium nitrate and urate, phosphates, as well as some earth salts and impurities. Bat guano is faecal excrement from bats. Commercially harvested bat guano is used as an organic fertilizer. All commercially sold bat guano is derived from insect-eating bats.