61. Optimum temperature for mesophiles is
62. Among the following which one is not Beneficial Element?
63. Earth worm excreta generally having . . . . . . . . % Ca.
64. Nutrients which affect growing tips most are Ca and
65. Plants absorb nutrients mostly through
66. Enzyme responsible for breaking down of the N ≡ N
67. The law of the minimum was given by Liebig in
68. Most microorganism function at their best within a pH range
69. Azomethine H is used for determination of
70. Match the following columns:
Column I (Soil Type)
Column II (Characteristic)
a. Entisol
1. Clay rich soil
b. Vertisol
2. Highly weathered tropical and subtropical soil
c. Spodosol
3. Young soils with no horizon
d. Oxisol
4. Acid soils with leached upper horizon
| Column I (Soil Type) | Column II (Characteristic) |
| a. Entisol | 1. Clay rich soil |
| b. Vertisol | 2. Highly weathered tropical and subtropical soil |
| c. Spodosol | 3. Young soils with no horizon |
| d. Oxisol | 4. Acid soils with leached upper horizon |
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