11. Munsell colour chart contains about . . . . . . . . different coloured papers or chips
12. Match the following columns:
Column I (Fertilisers)
Column II (N Content %)
a. Anhydrous ammonia
1. 16
b. Ammonium phosphate
2. 82
c. Di-ammonium phosphate
3. 18 - 21
d. Ammonium chloride
4. 25
| Column I (Fertilisers) | Column II (N Content %) |
| a. Anhydrous ammonia | 1. 16 |
| b. Ammonium phosphate | 2. 82 |
| c. Di-ammonium phosphate | 3. 18 - 21 |
| d. Ammonium chloride | 4. 25 |
13. Sub surface drainage is required for following crop
14. The negative charge on 2 : 1 clays is
15. Presence of cambic horizon is a feature of
16. The mineralisation of organic phosphorus has been studied in relation to . . . . . . . . ratio.
17. Most of the plants obtain nitrogen from soil in the form of
18. Zoning is used for differentiating isomorphous minerals, ex.
19. CAN is a/an
20. VAMA is a
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