1. The C : N ratio of saw dust is
2. The nutrient with a key role in biological N-fixation is
3. Which of the following elements is not major nutrient element?
4. Which photosynthetic bacteria possess both PS I and PS II?
5. The most striking symptom of false smut of rice (Claviceps oryzae-sativae) is/are
6. Margosa is a highly effective product in reducing root-knot population belongs to
7. Richest source of nitrogen is
8. A photosynthetic organism which does not release oxygen is
9. Match the following columns:
Column I (Rhizobium sp.)
Column II (Crops)
a. R. lupini
1. Lupine group
b. R. trifoli
2. Clover group
c. R. japonicum
3. Soybean
d. R. mcliloti
4. Alfa-alfa
| Column I (Rhizobium sp.) | Column II (Crops) |
| a. R. lupini | 1. Lupine group |
| b. R. trifoli | 2. Clover group |
| c. R. japonicum | 3. Soybean |
| d. R. mcliloti | 4. Alfa-alfa |
10. Interveinal chlorosis occurs due to deficiency of
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