This quiz works best with JavaScript enabled. Home > Agronomy > Crop Science > Agronomy – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Agronomy Quiz 3 (9 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In small grain production, jointing refers to which of the following? A) Tiller production. B) The head is in the boot. C) The first node is visible above the soil surface. D) The flag leaf has emerged. Show Answer Correct Answer: C) The first node is visible above the soil surface. 2. PH is the measurement of the concentration of what ion in the soil? A) Hydroxide. B) Hydrogen. C) Phosphorus. D) Helium. Show Answer Correct Answer: B) Hydrogen. 3. What is the name of the group of nitrogen-fixing bacteria in legume nodules? A) Nitrosomonas bacteria. B) Nonsymbiotic bacteria. C) Rhizome bacteria. D) Rhizobium bacteria. Show Answer Correct Answer: D) Rhizobium bacteria. 4. Visual symptoms of zinc deficiency usually appear as: A) Chlorosis. B) Twisted stems. C) Pale foliage on older leaves first. D) Stem pitting. Show Answer Correct Answer: A) Chlorosis. 5. Current university research shows a soybean yield response to the application of 20 pounds of sulfur preplant. How much 21-0-0-24 per acre do you need to spread? A) 4.2 pounds/ac. B) 4.8 pounds/ac. C) 83.3 pounds/ac. D) 93.3 pounds/ac. Show Answer Correct Answer: C) 83.3 pounds/ac. 6. What is the pigment associated with sugar metabolism, when it accumulates in the plant, it gives the plant a reddish/purple color? A) Chlorophyll. B) Carotenoid. C) Anthocyanin. D) Xanthophyll. Show Answer Correct Answer: C) Anthocyanin. 7. When thinking of crop nutrient fertilization, what does agronomic rate of application mean? A) Applying a balanced amount of nutrients. B) Matching fertilizer inputs with crop requirements under given soil conditions. C) Applying both a broadcast and starter fertilizer along with a side-dress treatment. D) Applying only a broadcast and starter fertilizer. Show Answer Correct Answer: B) Matching fertilizer inputs with crop requirements under given soil conditions. 8. What soil contains significant amounts of naturally occurring calcium carbonate? These soils are characterized by a high soil pH and fizz when a dilute acid is applied. A) Calcareous soil. B) Mineral soil. C) Volcanic soil. D) Organic soil. Show Answer Correct Answer: A) Calcareous soil. 9. What type of flowering plant takes 12-24 months to complete its life cycle? It grows vegetative the first year and then reproduces the second year. A) Annual plant. B) Biennial plant. C) Triennial plant. D) Perennial plant. Show Answer Correct Answer: B) Biennial plant. ← PreviousRelated QuizzesAgronomy QuizzesAgronomy Quiz 1Agronomy Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books