Agronomy ICAR JRF Test - 19 — Agri Master Mind
Soil structure is improved by application of–
- Muriate of potash
- Zinc sulphate
- Urea
- Super phosphate
Hydraulic conductivity of soil is very low in case of
- Acid soils
- Saline soils
- Loam soils
- Alkali soils
Tilth is related to–
- Shape of the soil aggregates
- Size distribution of the soil aggregates
- Arrangement of the soil aggregates
- All of these
Seed work board is 'required for–
- Viability test of seed
- Germination test of seed
- Purity test of seed
- Blending of seed
Which of the following contains highest nutrients?
- FYM
- Compost
- Droppings of sheep & goat
- None of these
An annual weed rice field is–
- Anagalliis aruensis
- Echinochloa crusgalli
- Amarautltus Spinosus
- Phalaris mitior
Flow of water in saturated soil is described by–
- Fick's law
- Poiseuille's law
- Darcy's law
- Both (C) and (B)
Which is the most important green manure crop?
- Sunhemp
- Dhaincha
- Pillipesara
- All of these
Which of the following is not a Nitrogenous fertilizer ?
- Ammonium chloride
- Anhydrous ammonia
- Calcium cyanamide
- None of these
NPK Composition of standard fertilizer mixture for potato and Paddy is
- 4,4,4
- 6,24,6
- 6,12,6
- None of these
Zero Tillage system was first used successfully in 1950 in pasture renovation in–
- United Kingdom
- USA
- Japan
- India
Which crop of the following has the double symbiotic relationship with nitrogen fixing bacteria ?
- Phaseolus vulgaris
- Sesbania rostrata
- Cajanus cajan
- Glijcine max
Repetitive growing of same sole crop on the same field is known as
- Sequential Cropping
- Relay Cropping
- Multiple Cropping
- Mono Cropping
Which commercial fertilizer contains Mg & Ca as secondary nutrients?
- Epsum
- Gypsum
- Both Epsum & Gypsum
- None of these
Reduction in weeds causes
- Reduction in land value
- Reduction in crop yield
- Loss in crop quality
- All of these
Seed rate of transplanted basmati rice is–
- 25-30 kg/ha
- 35-40 kg/ha
- 45-60 kg/ha
- 55-70 kg/ha
Which one of the following is not narrow leaved weeds ?
- Cifnodon dactsjlou
- Cyperus rotundus
- Melilotus indica
- Setaria glauca
Application of manures and fertilizers to the established crop within crop duration is termed as
- Basal dressing
- Top dressing
- Both the above
- None of these
First hybrid maize Ganga-l was developed in India in–
- 1957
- 1964
- 1961
- 1965
Which of the followings weed is indicator of poor light soil?
- E. Colonum
- Cymbopogon
- Both the above
- None of these
The earliest maturing variety of pigeonpea is :
- UPAS-120
- Prabhat
- Pusa Ageti
- T-21
The best sowing time for toria is :
- Mid to last week of September
- Mid September to mid October
- Mid October to mid November
- Mid to last week of October
An average mean temperature of--- is best suited for the growth of sugarcane :
- 10-20
- 25-35
- 40-45
- 50-60
The 18 month Adsali crop in southern India especially in Maharashtra and Tamil Nadu usually give---quintals of cane per hectare :
- 500-600
- 700-800
- 1000-1200
- 1800-2000
Which crop belongs to leguminosae family :
- Spianch
- Lettuce
- Fenugreek
- Rubber
Sugarcane crop is most sensitive to soil moisture stress during---phase :
- Germination
- Vegetative
- Formative
- Grand growth
Number of setts needed to plant one hectare of sugarcane is about :
- 25,000-30,000
- 35,000-40,000
- 45,000-50,000
- 55,000-60,000
The term monsoon is derived from---word :
- Latin
- Arabic
- Greek
- Roman
In northern India, autumn cane requires on an average----irrigation :
- 5
- 6
- 7
- 10
The 1,000-grain weight (g) of little seed canay grass (Phalaris minor) is :
- 2
- 4
- 6
- 8
When annual rainfall in an area is 1200 mm, then how much evaporation has to occur to be classified as dry land area :
- 750mm
- 1500mm
- 1000mm
- None of these
The crop raotation having 200% rotational intensity is :
- Rice-wheat
- Rice-wheat-moong
- Jowar-toria-wheat-moong
- Rice-pea-sugarcane
The seed rate (kg/ha) for cumin is :
- 15-20
- 20-25
- 12-15
- 8-10
Most weeds become tolerant to triazine group of herbicides because of :
- Enhanced detoxification
- Altered chlroroplast structure
- Sequestration
- All of the above
Dry land areas are those which receive an average annual rainfall of :
- <500mm
- <800mm
- >800mm
- >1125mm
The total number of irrigations required for rabi maize are :
- 1-2
- 2-3
- 3-4
- 6-7
The most commonly cultivated maize in India is :
- Zea mays everta
- Zea mays indurate
- Zea mays indentata
- Zea mays saccharata
The internode or stem elongation occurs during---stage :
- Tillering
- Jointing
- Booting
- Heading
Which one of the following is a variety of Bengal gram :
- Rachna
- Radhey
- Swarnrekha
- T-63
The popular variety of blackgram (Vigna mungo) is :
- T-9
- Pusa Phalguni
- Pusa Dofasali
- Pusa Rituraj
The internode or stem elongation occurs during---stage :-
- Tillering
- Jointing
- Booting
- Heading
Which one of the following is a variety of Bengal gram :
- Rachna
- Radhey
- Swarnrekha
- T-63
The popular variety of blackgram (Vigna mungo) is :
- T-9
- Pusa Phalguni
- Pusa Dofasali
- Pusa Rituraj
The correct combination of pea varieties is :
- Arkel, Meteor and Aparna
- Aprana, Awarodhi and Rachna
- Aprana, L-116 and Pusa barsati
- All of the above
Under dry land conditions, the Indian mustard is sown at a row spacing of :
- 10-15cm
- 20-25cm
- 25-30cm
- 30-35cm
Which one of the following is not a variety of linseed :
- Hira
- Mukta
- Sangam
- Neelum
One fo the effective mean of adaptation of a plant to dryland conditions is represented by :
- Low root-to-top ratio
- High root-to-top ratio
- Low root-to-leaf ratio
- High root-to-leaf-ratio
The irrigation water applied in furrow method in potato should cover :
- Only base of the ridge
- Only 1/3 height of ridge
- Up to 2/3 height if ridge
- Up to top of the rodge
Cynodon dactylon and Cyperus rotundus are----weeds :
- Annual and monocot
- Perennial and monocot
- Annual and dicot
- Perennial and dicot
On sloppy drylands, the place of pearlmillet in strip cropping will be on :
- Top of the slope
- Middle of the slope
- Bottom of the slope
- Any where
On sloppy drylands, the place of Vigna mungo in strip cropping will be on :
- Top of the slope
- Middle of the slope
- Bottom of the slope
- Any where
Butachlor is applied in direct seeded upland rice at :
- Pre-planting
- Just after planting
- Within 1 week after planting
- 3 weeks after planting
Which one of the following is a weather phenomena :
- Light intensity
- Cyclone
- Wind velocity
- Wind direction
Botanical name of cooklebur weed is :
- Xanthium strumarium L.
- Ployginum convolvulus L.
- Sidalambifolia L.
- Typhalatifolia L.
The optimum range of soil moisture for convenient and effective ploughing is :
- 10-15% depletion of ASM
- 16-20% depletion of ASM
- 21-24% depletion of ASM
- 25-50% depletion of ASM
Irrigation water would be injurious to crops if the boron content is :
- 0-1 ppm
- 1-2 ppm
- 2-3 ppm
- >3 ppm
Tensiometers or Irrometers can be used to measure soil moisture potential upto (bar) :
- 0-0.85
- 0.9-1.0
- 1.1-1.2
- 1.3-1.4
Field capacity (per cent by weight) of a sandy loam soil has been estimated in the range of :
- 5-10
- 10-18
- 24-32
- 19-25
Plant canopy temperature can be measured by :
- Irrometers
- Infra-red thermometers
- Hygro-thermometers
- Psychrometers
One cubic foot per second (cusec) of water discharge is equal to--- cubic meter per second :
- 0.2880
- 0.2870
- 0.0289
- 0.0283
The photosensitive and long duration variety of rice is :
- IR-36
- Jaya
- IR-8
- IR-20
The 2, 4-D was synthesized as a growth regulator by Pokorny of USA in the year :
- 1932
- 1941
- 1942
- 1944
Tillage has considerable influence on soil physical properties through--- bilk density :
- Decreased
- Increased
- Constant
- None of these
The crops with matted foliage and roots close to the soil surface grown to conserve soil from erosion particularly in non-arable areas are known as :
- Sod crops
- Ware crops
- Cleaning crops
- Fouling crops
Which of the following is known as a soil destructive legume :
- Cajanascajan
- Mimosa pudica
- Glycine max
- Vignarodiata
Which is a traditional technique of predicting South-west monsoon :
- Typical behavior of insects, flowers and birds
- Position of planets in the universe
- Wind pattern and cloud colour
- All of the above
The origin of man-made cereal triticale is :
- India
- USA
- Switzerland
- Sweden
The agro-climatic zone IIA (Transitional plain of Inland drainage) of Rajasthan is in :
- Western Rajasthan
- Eastern Rajasthan
- Southern Rajasthan
- Northern Rajasthan
The major industrial use of guar (clusterbean) in india is in the production of :
- Plastics
- Protein
- Cake
- Gum
Which of the following varieties of bajra (pearlmillet) was developed in Rajasthan by the Swami Keshwanand RAU, Bikaner :
- MH-179
- MH-169
- RCB-2
- WCC-75
Which of the following oilseed crops has the largest area and production in Rajasthan :
- Sesamum
- Rapeseed and mustard
- Castor
- Groundnut
Which of the following herbicides is most suited for wed control in irrigated gram :
- 2, 4-D
- Simazine
- Diuron
- Fluchloralin
The high RSC irrigation water is unfit for crop production because :
- Its carbonates are harmful to the crop roots
- It adds lot of Na to soil
- It precipitates native Ca and Mg
- It solubilizes native Na
Which of the following parasitic weeds attack mustard crop in Rajasthan :
- Striga
- Orobanche
- Cuscuta
- Loranthus
Which of the following varieties of groundnut is a bunch type :
- M-13
- RSB-87
- AK-12-24
- MA-10
Agro-climatically India is divided in how many agro-climatic zones :
- 5
- 10
- 15
- 20
Rjasthan is a part of :
- Central zone
- North-Western Plain zone
- North-Eastern Plain zone
- Northern Hills zone
Main crops of Rajasthan :
- Rice and jute
- Wheat and barley
- Vegetables and sugarcane
- Oil seeds and pulses
In Rajasthan most soils need :
- Zero tillage
- Reduced tillage
- More tillage
- Heavy tillage
Sandy or sandy loam soil need artificial :
- Deep drainage
- Medium drainage
- Shallow drainage
- No drainage
Chemically Olsen’s reagent is
- NaHCO3
- NaHPO4
- Na2CO3
- NaCl
Addition of electrolytes, ______ zeta potential thereby favours flocculation
- Decreases
- First decreases and Increases
- Increase
- no reaction
The reference electrode in pH meter is ____
- Calomel
- cloth
- Glass
- quartz electrode
Knowledge of buffering capacity of soils will help to facilitate the amount of ____ to the soil
- Lime
- gypsum
- both a and b
- none of the above
The term pH is derived from French word___
- Puissance de hydrogen
- Hydrogènenégatif
- Niveaud'hydrogène
- All
Which silicate minerals are made up of individual silicon tetrahedron?
- Quartz
- Olivines
- Pyroxenes
- Amphiboles
If molecular weight of substance in grams is dissolved in the distilled water, the resultant solution is
- Molal solution
- Molar solution
- Normal solution
- Neutral solution
‘Partial pressure of a solution component is directly proportional to its mole fraction’ this statement is known as
- Henry’s law
- Rault’s law
- Distribution law
- Ostwald’s dilution law
The pH meter works on the basis of
- Laplaces equation
- Bohr’s equation
- Henrys equation
- Nernst equation
J set-3 and Pusachari are :
- Grain sorghum type
- Pop sorghum type
- Sorghum type
- Fodder type
NB-21, BH-18 and CO-1 are :
- Varieties
- Fodder and grain cultivars
- Bajra varieties
- None of these
Knock weed is the trade name of :
- 2, 4-D ethylene
- 2, 4 D salt
- 2, 4-D
- None of these
Broomrape is an example of :
- Obligate root parasite
- Obligate stem parasite
- Partial root parasite
- partial stem parasite
The soybean was introduced into India in :
- 1000 A D
- 1100 A D
- 1200 A D
- 1300 A D
Leaf reddening in cotton is primarily due to :
- High sunshine and low moisture
- Nutrient uptake due to low temperature
- Genetic
- None of these
An acid formed from gren leaves of chickpea prescribed for intestinal disorder is :
- Citric acid
- Sulphuric acid
- Prussic acid
- Oxalic acid
Optimum brix reading for harvesting of sugarcane is :
- 14-16
- 18-21
- 23-25
- None of these
ICMR recommednded how many g of pulses per capita per day :
- 65
- 95
- 75
- 85
2, 4-D is most effective herbicide if used against :
- Broad leaved weeds
- Grasses
- Sedges
- None of the above
The mode of action of bipyridiium group of herbicides is mainly due to inhibition of :
- Hill reaction
- Electron transfer
- CO2 inhibition
- None of the above
Plant growth regulator used for sucker control in Tobacco is
- IAA
- ABA
- MH
- GA
Indian Journal of Agriculture Sciences is published by
- IARI
- Dept. of Agriculture
- ICAR
- NABARD
Jhum cultivation mostly found in --- part of India ?
- Central
- North
- Eastern
- Western
Lunishree is variety of ---
- Golden rice
- Hybrid rice
- Super rice
- Aromatic rice
Area irrigated by one cusec discharge of water is called as
- Delta
- Discharge
- Duty
- None of these
Over the years the contribution of agriculture to Indian GDP is ---
- Decreasing
- Constant
- Increasing
- None of these
Sugarcane + Potato is example of ---
- Parallel cropping
- Multistoried cropping
- Synergetic cropping
- None of these
Process of removal of air from the cans is known as
- Brining
- Lye peeling
- Exhausting
- Blanching
Benzoic acid is most effective against
- Fungi
- Bacteria
- Yeast
- None of these
Fat % in double tonned milk is ---
- 0.5
- 1
- 1.5
- 3
Lantena camera is ---- weed
- Seasonal
- Annual
- Perennial
- Biennial
Nosema disease of honey bee caused due to
- Bacteria
- Virus
- Protozoa
- Fungi
Sugarcane pyrilla belongs to family
- Diptera
- Lepidoptera
- Hemiptera
- Cociidae
In Sugarcane rootless yellowish dried cane is symptom of -- pest
- Sugarcane pyrilla
- Shoot borer
- White grub
- None of these
Scientific name of Mustard saw fly is
- Agromyzidae
- Acherantia styx
- Athalia lugens proxima
- Achoea janata
In Mango ---- pest adult feed on pulp.
- Mango fruit fly
- Mealy bug
- Mango stone weevil
- Scale insect
In Pomegranate mrig bahar is avoided to control -- pest
- Scale insect
- Whitefly
- Anar caterpillar
- Mealy bug
Who proposed pure line theory of selection ?
- Shull
- Fairchild
- Johanssen
- Hull
Covered smut of barely is -- borne
- Internally seed borne
- Soil borne
- Externally seed borne
- Air borne
Stratification is essentially a
- Storing
- Heating
- Hilling treatment
- Aging