This quiz works best with JavaScript enabled. Home > Soil Nutrition > Nutrients > Soil Nutrients – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Nutrients Quiz 2 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which fertilizer contains N, P and K? A) Synthetic. B) Organic. C) Both. D) None of above. Show Answer Correct Answer: C) Both. 2. Which fertilizer is usually applied early in the growing season? A) Synthetic. B) Organic. C) Both. D) None of above. Show Answer Correct Answer: B) Organic. 3. Weak stalks leading to lodging in plants indicates a deficiency in ..... A) Potassium. B) Nitrogen. C) Phosphorus. D) None of above. Show Answer Correct Answer: A) Potassium. 4. Helps form chlorophyll; helps with protein production and making plant oils; increases crop yields and improves quality of produce A) Magnesium. B) Sulfur. C) Phosphorus. D) Calcium. Show Answer Correct Answer: B) Sulfur. 5. ..... carries airborne nitrates to the soil during a storm. A) Clouds. B) Rain. C) Lightning. D) Tornadoes. Show Answer Correct Answer: B) Rain. 6. Heart rot/crown rot in sugar beet and carrots is caused by a deficiency in ..... A) Boron. B) Zinc. C) Copper. D) Iron. Show Answer Correct Answer: A) Boron. 7. How many essential nutrients are required by plants? A) 10. B) 20. C) 16. D) 15. Show Answer Correct Answer: C) 16. 8. A deficiency in ..... causes yield reduction in cereals, stunted growth and reduced flowering in legumes A) Iron. B) Zinc. C) Manganese. D) Molybdenum. Show Answer Correct Answer: B) Zinc. 9. Scorching of leaves (browning) along leaf margins indicates a deficiency in ..... A) Nitrogen. B) Potassium. C) Phosphorus. D) None of above. Show Answer Correct Answer: B) Potassium. 10. A deficiency in ..... causes shortened inter nodes and bunched leaves on ends of brunches due to low auxin production A) Iron. B) Zinc. C) Manganese. D) Molybdenum. Show Answer Correct Answer: B) Zinc. 11. Swayback is a deficiency disease in sheep due to the lack of which element A) Zinc. B) Iron. C) Cobalt. D) Copper. Show Answer Correct Answer: D) Copper. 12. The primary function of this element is to contribute to the general health of the plant and encourage root growth and fruit formation A) Nitrogen. B) Potash. C) Potassium. D) Oxygen. Show Answer Correct Answer: C) Potassium. 13. ..... is needed for cell wall formation in a plant A) Calcium. B) Magnesium. C) Sulfur. D) None of above. Show Answer Correct Answer: A) Calcium. 14. What important role do soil microorganisms play in the Nitrogen Cycle? A) They convert organic N to a form that is usable by plants. B) They create sugars that feed plants. C) The filter pollutants in the soil. D) They provide root protection during harsh weather conditions. Show Answer Correct Answer: A) They convert organic N to a form that is usable by plants. 15. What is the definition of synthetic? A) Occurs naturally ("in nature"). B) Made by chemical synthesis (human-made). C) Made of plastic or metal. D) Organically sourced. Show Answer Correct Answer: B) Made by chemical synthesis (human-made). 16. What is the process where nitrogen is moved from the air to the soil to be used by plants and then returned to the atmosphere to be used again? A) Ammonia cycle. B) Nitrogen cycle. C) Bacterial cycle. D) Water cycle. Show Answer Correct Answer: B) Nitrogen cycle. 17. What two kinds of material make up soil? A) Dirt and worms. B) Dirt and minerals. C) Organic material and minerals. D) Topsoil and rocks. Show Answer Correct Answer: C) Organic material and minerals. 18. Dying growing tips and bushy stunted growth is caused by a deficiency in ..... A) Boron. B) Zinc. C) Copper. D) Iron. Show Answer Correct Answer: A) Boron. 19. A deficiency in ..... causes anaemia in pigs A) Iron. B) Zinc. C) Copper. D) Boron. Show Answer Correct Answer: A) Iron. 20. ..... is the only metal micronutient that does not exhibit multiple valences and not subjected to oxidation-reducation reactions in soil-plants system A) Iron. B) Zinc. C) Manganese. D) Molybdenum. Show Answer Correct Answer: B) Zinc. ← PreviousNext →Related QuizzesSoil Nutrition QuizzesSoil Nutrients Quiz 1Soil Nutrients Quiz 3 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books