46. Which one of the following soil microbes nas the largest mass Peg A. bacteri

Question

46. Which one of the following soil microbes nas the largest mass Peg A. bacteria B fungi C. algae B. actinomycetes 47. In a given ecosystem, an organism A produces substance X that harms organism B, but benefits organismis association is a good example of B. commensalism C. amensalism D mutualism A. parasitism A. 6.5 A mineralization B. ammonification 48. The soil optimum pH for plant available P is: 49. The biological reduction of nitrate to nitrite then to gaseous nitrogen is called 50. When a plant residue that has a C:N ratio of 10:1 is incorporated into soil,expected to be dominant. 51. Rain erosion involves 52. In general, soil anion exchange capacity will 53. A fertilizer with 16-16-12 grade contains about what percentage of actual elemental potassium (K)? 54. If you wanted to reduce the percentage sodium saturation B. 4.0 C. 9.5 D. B and C C immobilization D. none of the above B. immobilization C. nitrification D none of the above A. mineralization A. detachment B transport A. increase A. 10 C. deposition d. all of the above as pH increases. B. decrease C. remain the same D no relationship at all B. 12 C. 7 D. 14 from 30% to 596 in a sole so C. 10.65 D. 43 ve a yard that is only 121 ft by 360 ft, the 5. If your soil test recommendation for N was 120 Ibs per acre, and you ha amount of N you will need will be (hint: an acre is 43560 fA): A. 120 lbs B. 60 Ibs C. 12 lbs D None of the above C. 383 lbs D. 200 Ibs A: 120 lbs B. 261 lbs 57. A ne w Hummer on average travels 12 miles per gallon and if a gallon of fuel produces 20 lbs of CO, The amount of CO, emitted if you drive it for five years at 15,000 miles per year will be A. 125,000 lbsB 200,000 . 180,000 lbs D. none of the above lbs 1) contains 3% organic matter and 2% of the organic matter is mineralized. If the organi 58. If a hectare (2 million kg soi matter contains 5% N, the amount of N mineralize by this process will be A 6 kg B. 60 kg C. 600,000 kg D. 1200 kg

Explanation / Answer

SOLUTION:-55.

Given in the question that 121lbs requires for 1acre.

1acre is equals to 43560ft^2

and yard measurement is given 121 ft 360 ft. so required area will be

121*360

That equals to 43560ft^2

So for this area the nitrogen requires will be 120lbs.

Option (a) is correct

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