MCQ’S ON MANURES AND FERTILIZERS
1. Green manure plants are
(a) Poaceae
(b) Solanaceae
(c) Leguminosae
(d) Compositae
Answer: (c)
2. This chemical fertilizer is essential for better rhizobial nitrogen fixation
(a) calcium
(b) potassium
(c) sodium
(d) phosphorus
Answer: (d)
3. Azolla is used as a biofertilizer as it possesses
(a) humus in large quantities
(b) rhizobium
(c) mycorrhiza
(d) cyanobacteria
Answer: (d)
4. Pyrethrin is obtained from
(a) Chrysanthemum cinerariifolium
(b) Azadirachta indica
(c) Urtica dioica
(d) Tagetes erecta
Answer: (a)
5. This is not included in organic farming
(a) crop rotation
(b) chemical fertilizer
(c) green manures
(d) compost and farmyard manures
Answer: (b)
6. Appropriate use of cow dung is made in
(a) medicine
(b) fuel
(c) manure
(d) building/construction material
Answer: (c)
7. In children, this disease is caused due to excess nitrate fertilizers usage
(a) mumps
(b) jaundice
(c) septicemia
(d) methaemoglobinaemia
Answer: (d)
8. For paddy, the best fertilizer is
(a) Bacillus polymyxa
(b) Bacillus megaterium
(c) Azolla pinnata
(d) Rhizobium meliloti
Answer: (c)
9. Composted manure is formed from
(a) farm and household refuse
(b) animal refuse and rotten vegetables
(c) organic wastes from where biogas extraction takes place
(d) green and farmyard manure
Answer: (b)
10. Green manure is
(a) Maize
(b) Rice
(c) Sorghum
(d) Sesbania
Answer: (d)
