Cultivation of Field Crops 1. Paddy (important points)

Agronomy General Agriculture

Cultivation of Field Crops 1. Paddy (important points)

sn
questions
answer
1
The botanical name and family of paddy
Oryza sativa, Poaceae
2
The chromosome number of paddy
 Ans.2n = 24.
3
The cultivated spp. of paddy
O. glaberima
4
PROTEIN % IN PADDY
6-7%
5
Indica rice is grown in
india
6
.Japonica rice is grown in
Japan
7
Javanica rice is grown in
Indonesia
8
.Rice inflorescence is called as
Panicle
9
Optimum temperature for good rice crop growth is
30-320C
10
Sowing of paddy in April-May and harvesting in August-Sept. is called as
Aus/Autumn/Pre kharif paddy
11
.Sowing of paddy in June-July and harvesting in October is called as
Aman/Kharif/Aghani
12
.Sowing of paddy in January-Feb and harvesting in April-May is called as
Boro/Summer/Spring
13
The best system of rice culture is
Transplanting
14
.The tillage implement, most suitable for rice cultivation is
Power tiller
15
Hulling percentage of rice is
70-75%
16
The gene responsible for dwarfness in rice is
Dee-gee-woo-gene
17
First intervarietal cross variety of rice?
Jaya (TN1 = T141)
18
.Normally rice plant is transplanted at
21-25 days after sowing (3-4 leaf stage)
19
Under SRI method, rice plant is transplanted at
.10-12 DAS (Days After Sowing)
20
SRI denotes
System of Rice Intensification
21
In rice ‘Dapog seedlings’ are ready for transplanting
Philippines
22
The nursery area required for providing seedlings for transplanting 1 ha rice field
1000 m2 (1/10 ha)
23
Most prominent cropping pattern of rice in India?
Rice-Wheat
24
Rice prefer nitrogen uptake in
.Ammonical form (NH4).
25
The recommended dose of N, P and K for rice crop
100:60:40 kg ha–1
26
For correction of iron chlorosis in rice, following spray is recommended
1% solution of ferrous sulphate
27
The nitrogen fixing bacterium found on root surface of rice
Azospirillum
28
The most important critical stage of rice for irrigation
Tillering to flowering stage
29
In low land rice, fertilizer is applied in
Reduced zone only
30
.Nitrogen use efficiency in rice is around
30-40%

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