This quiz works best with JavaScript enabled. Home > Agriculture > Soil Nutrition > Fertilizers Manures > Manures Fertilizers Agrochemicals – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Manures Fertilizers Agrochemicals Quiz 5 (23 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If nitrates leach into water, and rivers A) Can cause algal bloom. B) Cause plants to grow more. C) Increase crop yeild. D) Increase number of bacteria. Show Answer Correct Answer: A) Can cause algal bloom. 2. What does the term 'deficiency' mean? A) Too much of a key nutrient. B) How harmful a substance can be to animals. C) Administering a poison. D) A lack of key nutrients. Show Answer Correct Answer: D) A lack of key nutrients. 3. Nitrogen getting into fresh water A) Increases number of bacteria. B) Increases algal growth. C) Reduces biodiversity. D) Consumes all the oxygen in water. Show Answer Correct Answer: B) Increases algal growth. 4. Fertilizer contains the elements A) N-C-K. B) S-P-K. C) N-P-S. D) N-P-K. Show Answer Correct Answer: D) N-P-K. 5. ..... are derived from decaying plant and animal products such blood meal, bone meal, manure, plant parts, and left overs. A) Organic fertilizers. B) Inorganic fertilizers. C) Fertilizers. D) None of above. Show Answer Correct Answer: A) Organic fertilizers. 6. Gas that makes up 78% of our atmosphere. A) Nitrogen. B) Carbon Dioxide. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: A) Nitrogen. 7. A complete fertilizer is made from A) N P K. B) Ca Mg S. C) C H O. D) All of these. Show Answer Correct Answer: A) N P K. 8. What is the rate of Nitrogen in the 15-10-5 fertilizer? A) 15. B) 10. C) 5. D) None of above. Show Answer Correct Answer: A) 15. 9. Fertilizer is an inorganic A) Salt. B) Base. C) Acid. D) None of above. Show Answer Correct Answer: A) Salt. 10. After an algal bloom the biodiversity is decreased by A) The increase in bacteria using up all oxygen. B) Sunlight being blocked. C) The increased nitrate levels. D) Algal bloom eating all the fish. Show Answer Correct Answer: A) The increase in bacteria using up all oxygen. 11. ..... provide a lot of humus to soil A) Cow dung. B) Leaves. C) Fertilizers. D) Manure. Show Answer Correct Answer: D) Manure. 12. An advantage of organic fertilizer is that it: A) Is sterile. B) Releases into the soil rapidly. C) Improves the physical condition of soil. D) Leaches quickly through the soil. Show Answer Correct Answer: C) Improves the physical condition of soil. 13. What are the 3 most important minerals? A) NPQ. B) NPL. C) NPK. D) None of above. Show Answer Correct Answer: C) NPK. 14. Fertilizer containing 15- 10- 26 contains: A) 15% nitrogen, 10% phosphate, 26% potash. B) 15% phosphate, 10% nitrogen, 26% potash. C) 15% potash, 10% phosphate, and 26% nitrogen. D) 15% Nitrogen, 26 % Potassium, 10% Phosphorus. Show Answer Correct Answer: D) 15% Nitrogen, 26 % Potassium, 10% Phosphorus. 15. What is the method of fertilizer application where fertilizer is applied in bands near where the young plant? A) Broadcast Application. B) Spray Application. C) Band Application. D) None of above. Show Answer Correct Answer: C) Band Application. 16. This is the term used when the fertilizer is broadcast over growing crops. A) Foliar application. B) Band application. C) Broadcast application. D) Top dressing. Show Answer Correct Answer: D) Top dressing. 17. Why do we need nitrogen in fertiliser A) Plant need nitrogen for respiration. B) Help plant to produce its proteins and to resist from plant disease. C) Help plant produce chlorophyll and its other proton. D) None of above. Show Answer Correct Answer: C) Help plant produce chlorophyll and its other proton. 18. How does potassium help a plant grow A) Leaf growth. B) Root growth. C) Fruit growth. D) None of above. Show Answer Correct Answer: C) Fruit growth. 19. When crops are harvested, A) Biodiversity is increased. B) Nitrogen is taken out of the cycle so needs to be replaced. C) The crop yield is increased. D) The number of pests increases. Show Answer Correct Answer: B) Nitrogen is taken out of the cycle so needs to be replaced. 20. The element in urea is A) Potassium. B) Calcium. C) Nitrogen. D) Phosphorus. Show Answer Correct Answer: C) Nitrogen. 21. ..... increases the absorptive power of the soil and improves the physical condition of the soil. A) Compost. B) Green manure. C) Animal manure. D) None of above. Show Answer Correct Answer: C) Animal manure. 22. Farmers make up about ..... % of the population today A) 15. B) 2. C) 20. D) 10. Show Answer Correct Answer: B) 2. 23. What is the percentage of filler in a 14-8-6 fertilizer? A) 29. B) 100. C) 28. D) 72. Show Answer Correct Answer: D) 72. ← PreviousRelated QuizzesSoil Nutrition QuizzesAgriculture QuizzesManures Fertilizers Agrochemicals Quiz 1Manures Fertilizers Agrochemicals Quiz 2Manures Fertilizers Agrochemicals Quiz 3Manures Fertilizers Agrochemicals Quiz 4 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books