Daily Dosage -Paddy - Part 2 - Agronomy Important Q & A for all Competitive Exams

Paddy-Part 2 - Agronomy  Important  Q & A for all Competitive Exams

1.          Seed rate of rice-

• In Broad casting: 100 kg/ha.
• In Drilling method: 60 kg/ha.
• Dapog method: 1.5-3.0 kg/m2.
• SRI / Medagasker method: 6-7 kg/ ha.
• Hybrid rice: 15 kg/ha.

2.          Spacing for rice planting-

• Transplanting : 20 x 10 cm
• Hybrid : 20 x 15 cm
• SRI/ medagasker : 8 x 8 inch / 25 x 25 cm

3.          Nursery area for rice planting:

• Wet method: 1:10 m2
• SRI method:     1: 100 m2
•  Dapog method:  1:250 m2

4.      Seedlings become ready to transplant:

• Kharif : 20-25 day after sowing
• Rabi : 30-35 day after sowing
• Depog : 12-14 day after sowing
• SRI method : 10-12 day after sowing

5.      Depog method is a soil less method which is introduced from Manila ,                     Philippine
6.     SRI method from Madagascar, Developed by hennary di leley in 1980, Firstly adopted by TNAU in India.
7.     Hulling: removal of hull.
8.     Puddling: it is a process of destruction of soil aggregates by mechanical force in soil with excessive moisture  content  and  reduced the percolation loss.
9.     Milling : polishing of rice ( thus loss of Vit-B)
10.    Parboiling : hydrothermal process (treated by hot water) for conservation of Vit-B12
11.      Bushing: Ploughing on field after direct sowing for getting suitable no. of plants.
12.      NPK ratio for rice – 120:60:60
13.      Rice uptake nitrogen in both from- Ammonia and Nitrate.
14.      NH4- Methane gas released from paddy field.
15.      Respiration in rice plant by aeren chyma cell.
16.      Nitrogen use efficiency in rice 30-40%.
17.      Nitrogen fixation by BGA in rice field 20-25 kg/ha.

18.      Hybrid rice Developed by Y.L. Ping in 1970 at china.

19.      Hybrid rice introduced in india-1994
21.      Lunishree variety is known as super rice.
20.      Super rice Developed by G.S. Khush.
22.      Khaira disease in rice caused by Zn deficiency.
23.      Zn Deficiency first reported by Y.L. Nene in 1966 at pantnagar.
24.     Zn deficiency Managed by Znso4 0.5%
25.      Khaira disease also called iron rust.
26.      Browning in rice caused by iron toxicity.
27.      Phalguna variety of rice is tolerance to iron toxicity.
28.      White eye disease in rice caused by iron deficiency.