September 15, 2017

Agronomy Questions


Important Questions of agriculture exam’s
S.N
Question’s
Answer’s
1.  
Which of the crop has the highest cultivated area in the world ?
Wheat
2.  
Rice is originated in ?
India & Burma
3.  
India has the largest area in rice cultivation in the world, which is about ?
45 mha
4.  
Productivity if rice is highest in ?
Punjab
5.  
The genus Oryza includes
24 species
6.  
The varities which belong to species Oryza glaberrima are found in ?
Africa
7.  
The rice varities grown in India belongs to ?
Indica
8.  
Rica grown in Indonesia belongs to ?
O. sativa javanica
9.  
Non traditional area of rice cultivation include ?
Punjab & Haryana
10.                        
The rice inflorescence is know as ?
Panic
11.                        
The dehulled rice grain is known as ?
Brown rice
12.                        
For ripening of rice, temprature should lie between ?
20 - 25°C
13.                        
Photoperiodically, rice is type of plant ?
Short day plant
14.                        
The sowing time if aus rice is ?
May  - June
15.                        
The sowing time of boro or dalua rice is ?
Nov - Dec
16.                        
The optimum pH of soil for rice cultivtion varies in range ?
4 – 6 pH
17.                        
IR-8 varitety of rice is introduced in India from ?
Philippines
18.                        
The seed rate of rice cultivation in broadcasting and drilling method, respectively should be ?
100,60kg/ha
19.                        
For transplanting one hectare area of rice how much area is sufficient for nursery raising ?
1000 m2
20.                        
In wet bed method of raising nursery of rice, seedling would be ready for transplanting at an age of ?
20-25 days
21.                        
In rice Dapog seedling would be ready fr transplantng in ?
11-17 days
22.                        
Propanil (Stamp F-34) herbicides should be applied in rice after transplanting  ?
6-8 days
23.                        
The Kresek occurs in early stage of plant growth of rice in ?
BLB
24.                        
Tungro virus of rice is transmitted by ?
Green leaf hopper
25.                        
Dead heart and white head damage to rice is caused by ?
Stem borer
26.                        
Silvery shoot or onion leaf symptom of rice tillers is caused by ?
Gall midge
27.                        
Grassy stunt virus disease of rice is transmitted by ?
Brown plant hopper
28.                        
Gundhi bug insect attack on rice during ?
Milking stage
29.                        
Test weight of basmati rice is  ?
21 gm
30.                        
Oryza sativa is a diploid spacies having ……..chromosomes ?
24
31.                        
Gene responsible for dwarfing characters in rice is  ?
Dee-gee-wo-gen
32.                        
Golden rice is a source of ?
Vitamin  A
33.                        
Idea of super rice was given by  ?
GS Khush
34.                        
Government of India started subsidy on fertilizers with effect from  ?
Nov. 1, 1997
35.                        
The scientific name of common bread wheat is ?
Triticum aestivum
36.                        
Indian dwarf wheat belongs to ?
T. spherococcum
37.                        
Wheat is originated in ?
Central Asia (Turkey)
38.                        
Dwarf wheat (Maxican) is introduced in India by ?
Dr. NE Borlaug
39.                        
Maximum area under wheat is in ?
China
40.                        
The first wheat variety having short plant height, lodging resestence and higher grain yield was ?
Norin-10
41.                        
Temprature requirement for proper grain filling of wheat is ?
23-25°C
42.                        
The inflorescence of wheat is known as ?
Ear
43.                        
The normal seed rate of wheat is ?
100 kg/ha
44.                        
Wheat crop yielding 50 quintals of grain per hectare removes N,P2O5 and K2O kg/ha, respectively ?
100-150,70-80 and 125-150
45.                        
The recommended dose of  N,P2O5 and K2O kg/ha for wheat are ?
120-40-00
46.                        
N,P2O5 and K2O contents of DAP are ?
18-46-00
47.                        
Tritical is a cross between ?
Wheat × rye
48.                        
Phalaris minor belong to the family ?
Gramineae
49.                        
The nitrogen losses in rice can be reduced by placing NH4 fertilizer in ?
Reduced zone
50.                        
Green revolution has been most succesful in ?
Wheat & rice
51.                        
Record roduction of food grain was ensured in ?
2001 – 2002
52.                        
‘Akiochi’ disease in rice is due to the toxicity caused by ?
(Hydrogen sulphide)
53.                        
At pH 4.0, the predominant ionic from of phosphorus present is ?
H2PO4⁻
54.                        
First irrigation to the wheat crop should be given at ?
CRI stage
55.                        
Phalaris minor in wheat can be controlled by using ?
Isoproturon
56.                        
Test weight of phalaris minor’s seed is ?
2 gm
57.                        
Directorate of wheat research (DWR) is located at ?
Karnal
58.                       t
The scientific name of noble cane is ?
(Saccharum officinarum)
59.                        
Which state has the highest productivity of sugercane ?
Tamil Nadu
60.                        
Which state has the largest acreage and highest production of sugercane in country ?
U.P
61.                        
The inflorescence of sugercane is known as ?
Arrow
62.                        
The suited temprature for growth of sugercane lies between ?
26 -32°C
63.                        
AICRP on sugercane was started in ?
1970 – 1971
64.                        
The top portion of sugercane should be selected for seed purposes because bud tissues are rich in ?
Glucose
65.                        
Which element is essential for sugercane ?
K
66.                        
Which growth stage of sugercane is critical for irrigation ?
Formative stage
67.                        
Most serios disease of sugercane is ?
Red rot
68.                        
Which of the crop is most sensitive to both excess moisture and drought ?
Maize
69.                        
The capacity of a soil to resist appreciable change in pH value is called ?
Buffering capacity
70.                        
The largest producer of mothbean in India ?
Rajasthan
71.                        
The seed rate for sesamum (till) ?
3-4 kg/ha
72.                        
The highest production of mustard in India is in the state ?
Rajasthan
73.                        
The fruit rapeseed and mustard is known as ?
Siliqua
74.                        
Potato is a ………………… .
Modified stem
75.                        
The depth of sowing of bajra is ….
1-2 cm
76.                        
Biuret content in urea should not exceed ……….. according to fertilizer control order,1957.
1.5%
77.                        
The seed rate of hybrid maize.
20-25 kg/ha
78.                        
The most serious pest of bengalgram is ……….?
Pod borer
79.                        
The oil and protein content of groundnut are ?
45% & 26%
80.                        
Which is the leading state in production of groundnut ?
Gujarat
81.                        
Sunflower act as an indicator plant to diagnose the deficiency of ?
Boron
82.                        
Which of the elements is not cosidered as fertilizer nutrient ?
C
83.                        
Bacteria responsible for N fixation in soybean is …………. .
R. japonicum
84.                        
The insect bollworm is commonly found on ?
Cotton
85.                        
Stomata closing can be induced by ………………….. .
PMA (Phenylmercuric  acetate)
86.                        
The most critical stage of maize from irrigation point of view is ………
Tesseling stage
87.                        
Botanical name of sewan grass is ?
Lasiurus sindicus
88.                        
The quantity of SSP (16% P2O5) required for application to one acre of rice-field at a dose of 60 kg  P2O5 ha¯1 is …………
150 kg
89.                        
If on a 20 acre farm, crops are raised on 15 acres in rabi, 15 acres in kharif and 20 acres zaid in a year, what is the cropping intensity ?
250%
90.                        
Parthenium hysterophorus (Congress grass) controlled by ?
Zygogramma bicolarata
91.                        
Application of organic materials with C:N ratio wider than 20 to 30:1 leads to………… of soil N
Immobilization
92.                        
The origin place of potato is
South America
93.                        
Soybean is originated in
China
94.                        
A fertilizer which supplies three essential plant nutrients is …………….. .
SSP(single super phosphate)
95.                        
Crop logging is used in
Sugarcane
96.                        
The process of formation of nitrogen and nitrous oxide gases from ammonical fertilizers in soil is known as
Denitrification
97.                        
Salt is the xylem duct of the root are carried upward with
Transpiration stream
98.                        
Which form of nitrogen is available in urea?
Amide
99.                        
At pH value, phosphate availability is the highest in the soil?
6.5 pH
100.                
Bunchy top in sugarcane is caused by
Top shoot borer
101.                
Bacterial diseases are controlled by use of …………… chemicals
Antibiotics
102.                
‘relay cropping’ means
Growing of four crops on the same land in a year in such a manner that the following crop is sown before the harvest of preceding crop.
103.                
‘Awarodhi’ variety of gram is resistant to 
Wilt
104.                
Which vegetable oil is good for heart patient ?
Sunflower oil
105.                
UPAS 120 is a variety of ….. .
Pigeonpea (arahar)
106.                
The rotation intensity of maize - wheat + gram – moong is
300%
107.                
An example of companion cropping is
Sugarcane + potato
108.                
Decomposition of organic matter in submerged soil is carried out by ………… .
Bacteria
109.                
Plant food manufactured by the process of photosynthesis in the presence of a nutrient in chlorophyll is ……..
Mg
110.                
‘Aruna’ is a mutant variety of
Castor
111.                
During germination radical and plumule develop from
Embryo
112.                
Which of the plants does not show photorespiration ?
Maize
113.                
The recently developed terminator technology has been used in
Cotton
114.                
PDM 11 is a variety of
Moong
115.                
LEISA is related to ?
Organic farming
116.                
Khaira disease in rice is caused due to
Zinc deficiency
117.                
Soil structure is improved by application of
Super phosphate
118.                
Percent content of sulphur in single super phosphate is
16
119.                
Nitrogen fixation in soil by Rhizobium is increased by
P
120.                
‘Chipsona’ is a variety of
Potato
121.                
Which country is the place of origin of sunflower ?
Southern United State and Mexico
122.                
How many agroclimatic zones are categorized in India ?
15









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