SOIL SCIENCE 1 FINAL EXAM | EXAM QUESTIONS
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SOIL SCIENCE 1 FINAL EXAM I. Read the questions carefully before answering 1. What does pH stands for? (1pt) 2. What is the range of acidity, alkalinity and neutral pH? (3pts) 3. Differentiate cat... ion from anion (4pts) 4. How does soil become saline and what are the ways to improve it? (6pts) 5. Draw the chemical structure of the basic tetrahedral silicate clay. (4pts) 6. What are the factors affecting cation exchange capacity? (4pts) 7. What is cation exchange capacity? (2pts) 8. What is the difference between mineralization and denitrification? (4pts) 9. What is the organism that converts nitrite to nitrate? (1pt) 10. What is the organism that converts ammonium to nitrite? (1pt) II. Find the effective saturation of soil with the following information(20pts): Dry Weight of soil – 100 g Wet weight of soil – 200 g Water Density – 100 g/cm3 Dimensions of the cylinder Radius – 8 cm Weight – 15 g Height 100 cm III. Problem Solving 1. A farmer had a land area of a hectare for banana plantation with a soil analysis of 12-13-10 NPK. The recommended rate of fertilizer application for banana is 160-130-100. How much fertilizer should be used per hill if he should use square planting system with a distance of 4m x 4m? (20pts) 2. Solve for the % value of P in P2O5 and [Show More]
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