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Challenges in Improving Agricultural Products - 2

Description: Challenges in Improving Agricultural Products - 2
Number of Questions: 15
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Tags: Challenges in Improving Agricultural Products - 2 Crop Nutriton Farming Practices Crop Protection
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Which of the following is not an advantage of having shorter maturity duration of crops?

  1. The shorter the duration, the more economical is the variety.

  2. It allows farmers to grow multiple rounds of crops in a year.

  3. It increases resistance towards drought.

  4. It reduces losses during harvesting.

Show answer
Correct Option: C
Explanation:

Shortening the maturity duration of a crop does not affect its resistance towards drought.

Which of the following statements is incorrect regarding manures?

  1. Manures enrich the soil with essential nutrients.

  2. Manures add organic matter called humus to the soil.

  3. It is very convenient to handle, store and transport.

  4. The organic matter in manures provides food for the soil organisms.

  5. None of these

Show answer
Correct Option: C
Explanation:

This is the correct option. It is not a correct statement. It is very bulky and therefore, not easy to handle, store and transport.

Which of the following is/are desirable agronomic characteristic(s) of fodder crops?

  1. Dwarfness

  2. Tallness

  3. Profuse branching

  4. Both (2) and (3)

Show answer
Correct Option: D
Explanation:

Tallness and profuse branching are desirable characteristics of fodder crops.

Which of the following is not a criterion for the selection of crops for mixed cropping?

  1. One crop should be of longer duration than the other crop.

  2. Both the crops should need equal amount of water.

  3. One crop should be deep rooted and the other crop should be shallow rooted.

  4. One crop should be tall growing and the other crop should be short growing.

  5. One crop should require lesser nutrients than the other crop.

Show answer
Correct Option: B
Explanation:

This is the correct option as this is not a criterion for the selection of crops for mixed cropping. One component crop should need lesser water than the other component crop.

Match the following:

a. Insecticide 1. It is a biocidal chemical compound or biological organism used to kill or inhibit fungi or fungal spores.
b. Weedicide 2. It is any pesticide used to kill, deter or control insects.
c. Fungicide 3. It is a chemical agent that destroys unwanted plants, but not wanted ones.

  1. a - 2, b - 1, c - 3

  2. a - 2, b - 3, c - 1

  3. a - 3, b - 2, c - 1

  4. a - 1, b - 2, c - 3

  5. a - 1, b - 3, c - 2

Show answer
Correct Option: B
Explanation:

This is the correct option. Insecticide is any pesticide used to kill, deter or control insects. Weedicide is a chemical agent that destroys unwanted plants, but not wanted ones. Fungicide is a biocidal chemical compound or biological organism used to kill or inhibit fungi or fungal spores.

Which of the following is not a Kharif season crop?

  1. Paddy

  2. Maize

  3. Groundnut

  4. Barley

  5. Soyabean

Show answer
Correct Option: D
Explanation:

This is a correct option. Barley is not a Kharif season crop. It is a Rabi season crop. Soyabean is a Kharif season crop. Barley is not a Kharif season crop. It is a Rabi season crop.

Why does India not have any major scope for increasing the area of land under cultivation?

  1. Because India is surrounded by ocean on 3 sides

  2. Because most of the land area in India is not fit for cultivation

  3. Because most of the area under cultivation in India is already intensively cultivated

  4. None of these

Show answer
Correct Option: C
Explanation:

As most of the area under cultivation in India is already intensively cultivated, so there is no major scope for increasing the area of land under cultivation.

Which of the following is not a macronutrient that is present in a plant?

  1. Potassium

  2. Calcium

  3. Magnesium

  4. Chlorine

  5. Sulphur

Show answer
Correct Option: D
Explanation:

This is the correct option. Chlorine is not a macronutrient that is present in a plant. It is a micronutrient that is present in a small quantity in a plant. Sulphur is a macronutrient that is present in a plant. Thus, it is a wrong option.

Which of the following is not a constituent of compost?

  1. Vegetable waste

  2. Sewage waste

  3. Plastic waste

  4. Cow dung

Show answer
Correct Option: C
Explanation:

Plastic waste is non-biodegradable. Hence, it is not used as a constituent of compost.

Which of the following is/are not a biotic factor responsible for grain loss during storage?

  1. Insects

  2. Rodents

  3. Birds

  4. Fungi

  5. Temperature

Show answer
Correct Option: E
Explanation:

This is the correct option. Temperature is not a biotic factor responsible for grain loss during storage. It is an abiotic factor.

Which of the following is not a weedicide?

  1. 2,4-dichlorophenoxy acetic acid

  2. Atrazine

  3. Nitrophosphate

  4. Fluchloralin

  5. Isoproturon

Show answer
Correct Option: C
Explanation:

This is the correct option. Nitrophosphate is a complex fertiliser and not a weedicide.

Which of the following statements is/are correct regarding irrigation?

a. Irrigation helps in supplying the crops with hydrogen and oxygen. b. Irrigation provides sufficient moisture for the germination of seeds. c. It is essential for the growth and elongation of the roots.

  1. Only a

  2. Only a and b

  3. Only b

  4. All of these

  5. Only b and c

Show answer
Correct Option: D
Explanation:

This is the correct option as all statements are correct regarding irrigation. Irrigation provides sufficient moisture for the germination of seeds as seeds do not germinate in dry soil. Irrigation is also essential for the growth and elongation of the roots. This is because the roots of the crops fail to develop in dry soil. But, statement 'a' is also correct. Thus, it is a wrong option.

Which of the following is not a narrow leaf weed?

  1. Cyperus rotundus

  2. Trianth

  3. Phalaris

  4. Wild oat

  5. Wild Sorghum

Show answer
Correct Option: B
Explanation:

This is the correct option as it is not a narrow leaf weed. It is a broad leaf weed.

Which of the following is not an insect pest of stored grain?

  1. Gram dhora

  2. Painted bug

  3. Rice weevil

  4. Khapra beetle

  5. Rust red flour beetle

Show answer
Correct Option: B
Explanation:

This is the correct option as painted bug is a plant bug and not an insect pest of stored grain.

Which of the following is not a mechanical method to control weeds?

  1. Uprooting

  2. Weeding with a trowel

  3. Hand hoeing

  4. Intercropping

  5. Ploughing

Show answer
Correct Option: D
Explanation:

This is the correct option. Intercropping is not a mechanical method to control weeds. It is a cultural method.

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