1. Which is a potash fertilizer?
KCI
KNO3
K2SO4
All above
All above
2. Which nutrients are required in very small amount for the normal growth of plants?
Nitrogenous fertilizers
Phosphorus fertilizer
Micronutrients
All of the above
Micronutrients
3. What is the percentage of PaOs in calcium superphosphate?
16-25
16-20
16-30
None of these
16-20
4. What is the percentage of P2O5 in triple superphosphate?
42-46
16-20
13-19
None of these
42-46
5. Which is the best/balanced fertilizer?
Potash fertilizer
NPK fertilizer
Phosphatic fertlizer
All above
NPK fertilizer
6. Which are the Crops grown without chemical fertilizers?
Organic crops
Inorganic crops
Green crops
None of the above
Organic crops
7. What is the percentage of nitrogen in ammonium nitrate?
80-82
50-55
20-25
32-35
32-35
8. What is the percentage of nitrogen in ammonium sulphate?
21
27
23
19
21
9. Ammonium nitrate is sold as a mixture with which of the following?
Soda Ash
Zinc
Limestone
None of these
Zinc
10. Potassium sulphate with 48% to 52% potash, is formulated from which of the following?
Potassium nitrate
Potassium phosphate
Potassium chloride
None of these
Potassium phosphate
11. Which is ideal for horticultural crops and for tobacco and potatoes?
Potassium Nitrate
Potassium chloride
Potassium sulphate
None of these
Potassium Nitrate
12. What is the percentage of nitrogen in urea?
46%
77%
88%
23%
46%
13. The nitrogen present in some fertilizers helps plants to do which of the following?
to fight against diseases
to produce protein
to undergo photosynthesis
to produce fat
to produce protein
14. What is the percentage of nitrogen in ammonia?
82%
72%
46%
32%
82%
15. Which of the following is the substance which can be added to the soil to deliver necessary elements for growth?
Fertilizers
Growth regulators
Plant hormones
Pesticides
Fertilizers
16. Which elements is/are major elements for plant growth?
Phosphorus
Potassium
Nitrogen
All of these
All of these
17. Organic farming is the technique of raising crops through uses of which of the following?
Manures
Resistant varieties
Bio fertilizers
All of these
All of these
18. Which of the following is green manure/bio fertilizer?
Oat
Rice
Sesbania
Maize
Oat
19. Which is the most effective pesticide?
Organophosphates
Carbamates
Organochlorines
All of these
Organophosphates
20. Which fertilizers supply all the necessary elements to soil?
Potash fertilizers
Complete/NPK fertilizers
Phosphorous fertilizers
Nitrogen fertilizers
Complete/NPK fertilizers
21. Which is a nitrogenous fertilizer?
Calcium ammonium nitrate
Ammonia sulfate
Urea
All above
All above
22. Which of the following set of raw material is most appropriate for manufacture of urea?
H2O, N2 and H2
H2, N2 and CO
H2, CO2 and H2O
CH4, N2 and CO2
CH4, N2 and CO2
23. How many categories of Fertilizers are there for classification?
Four major categories
Three major categories
Six major categories
None of these
Four major categories
24. Natural fertilizers can be derived from which of the following?
Animals
Algae
Plants
All of these
All of these
25. Which is used for fruits, vegetables and tobacco?
Potassium sulphate
Potassium Nitrate
Potassium chloride
None of these
Potassium chloride
26. Which is a phosphatic fertilizer?
Triple superphosphate
Calcium superphosphate
Phosphatic slag
All of these
All of these
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