Solved MCQs on Fertilizer with answers. 

Which is a potash fertilizer?

1. KCI
2. KNO₃
3. K₂SO₄
4. All above

All above

 

Which nutrients are required in very small amount for the normal growth of plants?

1. Nitrogenous fertilizers
2. Phosphorus fertilizer
3. Micronutrients
4. All of the above

Micronutrients

 

What is the percentage of PaOs in calcium superphosphate?

1. 16-25
2. 16-20
3. 16-30
4. None of these

16-20

 

What is the percentage of P2O5 in triple superphosphate?

1. 42-46
2. 16-20
3. 13-19
4. None of these

42-46

 

Which is the best/balanced fertilizer?

1. Potash fertilizer
2. NPK fertilizer
3. Phosphatic fertlizer
4. All above

NPK fertilizer

 

Which are the Crops grown without chemical fertilizers?

1. Organic crops
2. Inorganic crops
3. Green crops
4. None of the above

Organic crops

 

What is the percentage of nitrogen in ammonium nitrate?

1. 80-82
2. 50-55
3. 20-25
4. 32-35

32-35

 

What is the percentage of nitrogen in ammonium sulphate?

1. 21
2. 27
3. 23
4. 19

21

 

Ammonium nitrate is sold as a mixture with which of the following?

1. Soda Ash
2. Zinc
3. Limestone

D: None of these

Zinc

 

Potassium sulphate with 48% to 52% potash, is formulated from which of the following?

1. Potassium nitrate
2. Potassium phosphate
3. Potassium chloride
4. None of these

Potassium phosphate

 

Which is ideal for horticultural crops and for tobacco and potatoes.

1. Potassium Nitrate
2. Potassium chloride
3. Potassium sulphate
4. None of these

Potassium Nitrate

 

What is the percentage of nitrogen in urea?

1. 46%
2. 77%
3. 88%
4. 23%

46%

 

The nitrogen present in some fertilizers helps plants.

1. to fight against diseases
2. to produce protein
3. to undergo photosynthesis
4. to produce fat

to produce protein

 

What is the percentage of nitrogen in ammonia?

1. 82%
2. 72%
3. 46%
4. 32%

82%

 

Which of the following is the substances which can be added to the soil to deliver necessary elements for growth?

1. Fertilizers
2. Growth regulators
3. Plant hormones
4. Pesticides

Fertilizers

 

Which elements is/are major elements for plant growth?.

1. Phosphorus
2. Potasium
3. Nitrogen
4. All of these

All of these

 

Organic farming is the technique of raising crops through uses of ______.

1. Manures
2. Resistant varieties
3. Bio fertilizers
4. All of these

All of these

 

Which of the following is green manure/ bio fertilizer?

1. Oat
2. Rice
3. Sesbania
4. Maize

Oat

 

Which is the most effective pesticide?

1. Organophosphates
2. Carbamates
3. Organochlorines
4. All of these

Organophosphates

 

Which fertilizers suuply all the necessary elements to soil?

1. Potash fertilizers
2. Complete/NPK fertilizers
3. Phosphorous fertilizers
4. Nitrogen fertilizers

Complete/NPK fertilizers

 

 

Which is a nitrogenous fertilizer?

1. Calcium ammonium nitrate
2. Ammonia sulfate
3. Urea
4. All above

All above

 

Which of the following set of raw material is most appropriate for manufacture of urea?

1. H₂O, N₂ and H₂
2. H₂, N₂ and CO
3. H_2, CO₂ and H₂O
4. CH₄, N₂ and CO₂

CH₄, N₂ and CO₂

 

How many categories of Fertilizers are there for classification?

1. Four major categories
2. Three major categories
3. Six major categories
4. None of these

Four major categories

 

Natural fertilizers can be derived from which of the following?

1. Animals
2. Algae
3. Plants
4. All of these

All of these

 

 

Which is used for fruits, vegetables and tobacco.

1. Potassium sulphate
2. Potassium Nitrate
3. Potassium chloride
4. None of these

Potassium chloride

 

Which is a phosphatic fertilizer?

1. Triple superphosphate
2. Calcium superphosphate
3. Phosphatic slag
4. All of these

All of these

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