91. Ligand adsorption of weak acid anion is maximum at a pH which is
92. Most common 5 deficient nutrients in soils are N, P, K, S and . . . . . .
93. 'Humus' is made up of
94. In humid weather, the fertiliser suffering most damage in one whose
95. Match the following columns:
Column I
Column II
a. Nitrate -N
1. Eutrophication
b. Nitrous oxide
2. Methemo-globin emia
c. Nitrogen and phosphorus
3. Ozone layer
d. Cadmium as contaminant in zinc and phosphatic fertilizers
4. Heart and kidney disease
| Column I | Column II |
| a. Nitrate -N | 1. Eutrophication |
| b. Nitrous oxide | 2. Methemo-globin emia |
| c. Nitrogen and phosphorus | 3. Ozone layer |
| d. Cadmium as contaminant in zinc and phosphatic fertilizers | 4. Heart and kidney disease |
96. Efficient fertilisers use results in
97. The relative proportion of sand, silt and clay in a soil is known
98. What is the content of organic matter in alluvial soil?
99. Good 'Indicator Plant' for N deficiency is
100. A mature and dry plant tissue contain about proteins (%)
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