RPSC Rajasthan ARO Agronomy 2022 Solved Paper (English) — Agri Master Mind
Darcy's law is valid for - (RJ ARO Agro 2022)
- Only saturated flow
- Only unsaturated flow
- Both saturated and unsaturated flow
- None of the above
By entrapping one tonne of carbon into soil, how much carbon dioxide will be reduced in the atmosphere? (RJ ARO Agro 2022)
- tonnes
- tonnes
- tonnes
- None of the above
The triazine group of herbicides act by - (RJ ARO Agro 2022)
- Inhibiting root growth
- Developing albino leaves
- Inhibiting photosynthesis
- Disrupting leaves
The major source of irrigation in Rajasthan is - (RJ ARO Agro 2022)
- Canals
- Pond
- Wells & Tube-wells
- None of the above
If a crop is to be irrigated at 0.75 IW/CPE ratio with 5 cm depth, it should be irrigated after - (RJ ARO Agro 2022)
- cm CPE
- cm CPE
- cm CPE
- cm CPF
The respective limits for erucic acid and glucosinolates in double zero varieties of mustard are - (RJ ARO Agro 2022)
- <3% and <30ppm
- <2% and <30ppm
- <2% and <40ppm
- <2% and <50ppm
Which nutrients suppressed all diseases in wheat? (RJ ARO Agro 2022)
- Copper
- Chlorine
- Zinc
- Iron
The nation's first organic university named by Gujarat Organic Agriculture University is located at - (RJ ARO Agro 2022)
- Gandhinagar
- Panchmahal
- Navsari
- Vadodara
After pearl millet in Agronomy, the second largest cereal grown in Rajasthan is - (RJ ARO Agro 2022)
- Maize
- Rice
- Wheat
- Sorghum
ICRISAT was established in the year - (RJ ARO Agro 2022)
Which is a C4 plant? (RJ ARO Agro 2022)
- Rice
- Wheat
- Amaranthus
- Pigeon pea
The 'onion leaf' in rice is caused by the damage of - (RJ ARO Agro 2022)
- Stem borer
- Brown plan hopper
- Gall midge
- Rice hispa
The mostly cultivated maize in India is - (RJ ARO Agro 2022)
- Zea Mays Indentata
- Zea Mays Indurata
- Zea Mays Tunicata
- Triticum Aestivum
If the field capacity is 18% and permanent wilting point is 6%. The 50% of the available soil moisture will be - (RJ ARO Agro 2022)
- %
- %
- %
- %
Which one of the following indices is not used to assess the inter-cropping systems? (RJ ARO Agro 2022)
- Relative Yield Total
- Land Equivalent Ratio
- Aggressivity
- Multiple Cropping Index
In push-pull strategy, the Napier grass attracts (pull) the stem borer when the following crop species pushes the pest away - (RJ ARO Agro 2022)
- Zea mays
- Desmodium spp
- Panicum spp
- Lasiurus scindicus
An irrigation water with EC 1.08 ds/m would have total soluble salt concentration (mg/litre or ppm) - (RJ ARO Agro 2022)
Winter maize is cultivated in which agro-climatic zone of Rajasthan? (RJ ARO Agro 2022)
- Sub-humid southern plains
- Humid-southern plains
- Flood prone eastern plain
- Irrigated north western plain
The multiplication of the growing degree days with length of day or night is called as - (RJ ARO Agro 2022)
- Extinction coefficient
- Effective growing degree days
- Cardinal degree days
- Photothermal unit
The plant growth regulator that retards senescence is - (RJ ARO Agro 2022)
- Cytokinin
- ABA
- Ethylene
- IAA
Which type of water is readily available to plants? (RJ ARO Agro 2022)
- Gravitational water
- Capillary water
- Hydroscopic water
- Non-capillary water
The maximum P (Phosphorus) availability in most of the soil is near pH of - (RJ ARO Agro 2022)
- <5.0
The pulse crop having largest acreage in Rajasthan is - (RJ ARO Agro 2022)
- Mungbean
- Mothbean
- Urdbean
- Cowpea
In Rajasthan, what is correct in respect of the southwest monsoon? (RJ ARO Agro 2022)
- Normally it covers whole Rajasthan by the first fortnight of May
- Normally it is withdrawn from whole Rajasthan by the end of August
- Normally it covers whole Rajasthan by the first fortnight of July
- Normally it is withdrawn from whole Rajasthan by the end of November
The carbon, hydrogen and oxygen constitute nearly what percentage of the dry matter of the crop plants? (RJ ARO Agro 2022)
The Bartlett’s Chi-Square test is used in - (RJ ARO Agro 2022)
- Combined or pooled analysis
- Testing normal distribution of data
- Standard deviation estimation
- Regression analysis
The sufficiency range of the iron in plant tissue is (ppm) - (RJ ARO Agro 2022)
The regional research centre of ICAR - Indian Institute of Pulses Research is recently established at - (RJ ARO Agro 2022)
- Jaipur
- Jodhpur
- Bikaner
- Udaipur
Movement of P (Phosphorus) and K (Potassium) from soil to the root surface take place due to - (RJ ARO Agro 2022)
- Mass flow
- Root interception
- Diffusion
- Osmosis
Average size of operational holding (in Hect.) for Rajasthan is - (RJ ARO Agro 2022)
- ha
- ha
- ha
- ha
The sulphur coated urea contains generally- (RJ ARO Agro 2022)
- % N and 8-10% S
- % N and 12-22% S
- % N and 8-10% S
- % N and 12-22% S
It denotes soil moisture and water present in plants and used in photosynthesis - (RJ ARO Agro 2022)
- Blue water
- Grey water
- Green water
- Yellow water
The no-till or conservation agriculture helps under climate change scenario through - (RJ ARO Agro 2022)
- Adaptation
- Mitigation
- Both adaptation and mitigation
- None of the above
Topramezone, a herbicide recommended for maize cultivation in India belongs to - (RJ ARO Agro 2022)
- Pyrazolones
- ,6-dinitroanilines
- Nitrophenyl ethers
- Phenyl urea
Out of these, which is having maximum contribution in global atmospheric temperature? (RJ ARO Agro 2022)
- Water vapour and clouds
- Carbon dioxide
- Methane
- Nitrous oxide
Currently, the estimated consumption of fertilizer in Rajasthan is around - (RJ ARO Agro 2022)
- kg/ha
- kg/ha
- kg/ha
- kg/ha
The optimum range for ploughing the soil is - (RJ ARO Agro 2022)
- to 25% depletion of available soil moisture
- to 50% depletion of available soil moisture
- Contains 50 to 75% of available soil moisture
- to 10% depletion of available soil moisture
A hydrologically delineated area that is drained by a river system - (RJ ARO Agro 2022)
- Water basin
- Hydrological unit
- Command area
- Production unit
The microorganism, constituting the largest share in the total microbial population in soil is - (RJ ARO Agro 2022)
- Nematodes
- Fungi
- Bacteria
- Actinomycetes
Rotational intensity of maize-barley-late potato-mungbean (first year) and rice-potato-wheat-black gram (second year) is - (RJ ARO Agro 2022)
- %
- %
- %
- %
The expanded form of FACE is - (RJ ARO Agro 2022)
- Free Air Carbon Enrichment Technology
- Free Air Carbon monoxide Enrichment Technology
- Free Air Carbon dioxide Enrichment Technology
- Free Air Carbon dioxide Enhancement Technology
Presently the gross irrigated area in Rajasthan is - (RJ ARO Agro 2022)
- million hectares
- million hectares
- million hectares
- million hectares
I = I₀ * e^(-k*LAI), here the K denotes for - (RJ ARO Agro 2022)
- Albedo
- Photosynthetically active radiation
- Extinction coefficient
- Pan coefficient
The hydrogen ion toxicity in crops may occur in soil having pH of - (RJ ARO Agro 2022)
- <4
- <5
- <6
- <7
The hormone helpful in breaking the dormancy in the crop plant is/are - (RJ ARO Agro 2022)
- Auxin
- Cytokinin
- Oxytocin
- IAA
The amount of solar radiation continuously emitted by the sun is - (RJ ARO Agro 2022)
- cal/cm²/min
- cal/min
- cal/cm²/min
- cal/min
Irrigation water is not suitable for irrigation if it contains boron (ppm) greater than - (RJ ARO Agro 2022)
Sesamum belongs to the family - (RJ ARO Agro 2022)
- Papilionaceae
- Pedaliaceae
- Cruciferae
- Chenopodiaceae
Growing of annual crops in between the perennial crop is - (RJ ARO Agro 2022)
- Relay cropping
- Inter-cropping
- Alley cropping
- Multiple cropping
The hormone involved in the germination process by inducing hydrolytic enzymes is - (RJ ARO Agro 2022)
- Auxin
- Cytokinin
- Gibberellin
- IAA
The calcium and sulphur content (%) in single superphosphate is - (RJ ARO Agro 2022)
- and 20
- and 11
- and 20
- and 16
Which of the following gases contributes maximum to global warming? (RJ ARO Agro 2022)
- CFC
- N₂O
- Methane
- CO₂
The air is considered as dry when the vapour pressure deficit, if - (RJ ARO Agro 2022)
- <1.5 kPa
- <2.5 kPa
- >1.5 kPa
- >2.5 kPa
In light soil conditions, the duration of the crop extends equal to the number of days of dry spell minus - (RJ ARO Agro 2022)
- days
- days
- days
- days
The cotyledons are brought out of the soil by curved elongation of - (RJ ARO Agro 2022)
- Epicotyl
- Hypocotyl
- Mesocotyl
- Auricle
The C:N ratio of soil microorganisms is nearly - (RJ ARO Agro 2022)
- :01
- :01
- :01
- :01
An inter-cropping can be beneficial, if it has LER - (RJ ARO Agro 2022)
- <1.0
- >1.0
- Zero
Tembotrione is registered and recommended in India for weed control in - (RJ ARO Agro 2022)
- Rice
- Wheat
- Maize
- Bajra
The continuous circulation of water between the hydrosphere, atmosphere, and lithosphere is called as - (RJ ARO Agro 2022)
- Geohydrological cycle
- Hydrological cycle
- Rainfall cycle
- None of the above
Halosulfuron-methyl is recommended to control mainly - (RJ ARO Agro 2022)
- Broad leaved weeds
- Grassy weeds
- Sedges
- Both broad and grassy weeds
Continuous zero-tillage in the crop field encourages the preponderance of - (RJ ARO Agro 2022)
- Annual weeds
- Biennial weeds
- Perennial weeds
- Parasitic weeds
The iron and zinc fortified variety of wheat is - (RJ ARO Agro 2022)
- HPBW 01
- DBW 187
- HD 3226
- Raj 4077
The optimum temperature range for nitrification in soil is – (RJ ARO Agro 2022)
- °C
- °C
- °C
- °C
NICRA, a network project launched by ICAR in 2011 stands for - (RJ ARO Agro 2022)
- New Innovations in Climate Resilient Agriculture
- New Initiatives in Climate Resilient Agriculture
- National Innovations in Climate Resilient Agriculture
- National Information in Climate Resilient Agriculture
Weed which is reported to act as host for ergot in pearl millet is - (RJ ARO Agro 2022)
- Lasiurus scindicus
- Saccharum spontaneum
- Cenchrus ciliaris
- Cenchrus setigerus
The term IMD stands for - (RJ ARO Agro 2022)
- Indian Meteorological Department
- India Meteorological Department
- Indian Mausam Department
- India Mausam Department
Crop logging has been most widely used for nutrient management in - (RJ ARO Agro 2022)
- Cotton
- Rice
- Sugarcane
- Alfalfa
If grains per cob are 400, test weight 220 g and maize yield is 70 q/ha, the number of cobs per m² will be: (RJ ARO Agro 2022)
A film-forming anti-transpirant used in dryland agriculture is: (RJ ARO Agro 2022)
- Feldspar
- Kaolinite
- Mica
- Silicone oil
Eruca Sativa is a - (RJ ARO Agro 2022)
- Vegetable
- Tuber crop
- Oilseed
- None of these
The herbicide which affects the crops in rotation even after two seasons of its application at normal rates is - (RJ ARO Agro 2022)
- Residual herbicide
- Long duration herbicide
- Notorious herbicide
- Bad herbicide
The piezometer is used to measure: (RJ ARO Agro 2022)
- Ground water table depth
- Water flow rate
- Soil moisture percentage
- Air temperature
The Alligator weed can be controlled by Agasicles hygrophila, which is a - (RJ ARO Agro 2022)
- Fungi
- Flea beetle
- Scale insect
- Bacteria
'Foolish seedling' disease is associated with - (RJ ARO Agro 2022)
- Rice
- Tobacco
- Cauliflower
- Tomato
The amino acid considered to be the precursor of auxin is: (RJ ARO Agro 2022)
- Methionine
- Lysine
- Tryptophan
- Isoleucine
The botanical name of the teak of desert is - (RJ ARO Agro 2022)
- Prosopis cineraria
- Tecomella undulata
- Acacia nilotica
- Azadirachta indica
The Meera cultivar developed by MPUAT is of - (RJ ARO Agro 2022)
- Mustard
- Foxtail millet
- Wheat
- Maize
Replication in experimental design is helpful in: (RJ ARO Agro 2022)
- Local control
- Randomization
- Estimation of experimental error
- None of these
The low availability of following nutrient reduces Ca translocation in the groundnut which causes hollow heart: (RJ ARO Agro 2022)
- Sulphur
- Zinc
- Boron
- Iron
Auricle is present in which crop plant leaf? (RJ ARO Agro 2022)
- Wheat
- Maize
- Sorghum
- Wild oat
The useful limit of most of the tensiometer is up to - (RJ ARO Agro 2022)
- atm
- atm
- atm
- atm
Which of the following is not an irrigation water control device? (RJ ARO Agro 2022)
- Canvas dam
- Siphon tubes
- Gated pipe
- Microjet
The best sowing time for the Lucerne is - (RJ ARO Agro 2022)
- Early October
- Mid of November
- Mid of October
- December
Optimum temperature for better growth of pearl millet crops is - (RJ ARO Agro 2022)
- °C
- °C
- °C
- °C
The stress degree days is most useful in: (RJ ARO Agro 2022)
- Irrigation scheduling
- Crop harvesting
- Recording of crop flowering
- None of the above
Correlation coefficient 'r' lies between: (RJ ARO Agro 2022)
- and 1
- -1 and 1
- -1 and 0
- None of the above
The photosynthetically active radiation is measured with the help of: (RJ ARO Agro 2022)
- Pyranometer
- Quantum sensor
- Precision pyranometer
- Piezometer
Awns contribute how much % of photosynthesis to grain? (RJ ARO Agro 2022)
- %
- %
- %
- %
The application of foreign material to clouds to induce precipitation is called - (RJ ARO Agro 2022)
- Cloud bursting
- Cloud falling
- Cloud seeding
- Cloud forming
Currently conservation agriculture is practiced by farmers in almost 80 countries, on about how much million hectares that makes significant amount of annual cr
The nitrogen content in the nano urea (liquid) commercialized by IFFCO in India is - (RJ ARO Agro 2022)
- %
- %
- %
- %
The seed rate (kg/ha) for sweet corn is - (RJ ARO Agro 2022)
Who is referred to as the father of agrometeorology in India? (RJ ARO Agro 2022)
- Venkataraman
- Ramdas
- Gilbert Walker
- Swaminathan
The critical period of crop-weed competition in sorghum is - (RJ ARO Agro 2022)
- days after sowing
- days after sowing
- days after sowing
- days after sowing
The legumes are tolerant to 2,4-DB and MCPA while non-legumes are susceptible because of differential response to - (RJ ARO Agro 2022)
- α-oxidation process
- β-oxidation process
- Leaf orientation
- Rooting depth
The optimum temperature range for germination of wheat is - (RJ ARO Agro 2022)
- °C
- °C
- °C
- °C
The cause of the great Bengal Famine in 1940s was - (RJ ARO Agro 2022)
- Blast of rice
- Brown spot of rice
- Rust of wheat
- Karnal bunt of wheat
The reflection of solar radiation reaching the earth surface back into space is called? (RJ ARO Agro 2022)
- Lux
- Albedo
- Net radiation
- PAR
The second-largest agro-climatic zone of Rajasthan is? (RJ ARO Agro 2022)
- IA: Arid western plain
- IB: Irrigated north-western plain
- IC: Hyper arid partial irrigated zone
- IIB: Transitional plain of Luni basin
Drought avoidance mechanism is found in-- (RJ ARO Agro 2022)
- Wheat
- Cotton
- Sorghum
- Rice
The error degrees of freedom of an experiment undertaken in a Latin square design with 6 treatments will be-- (RJ ARO Agro 2022)
Grass tetany disease in animals occurs due to deficiency of - (RJ ARO Agro 2022)
- Mg
- Ca
- S
- Cu
The recommended optimum sowing depth of the pearl millet is - (RJ ARO Agro 2022)
- cm
- cm
- cm
- cm
Generally, shelterbelts give protection from desiccating winds in the leeward side to the extent of - (RJ ARO Agro 2022)
- times of its width
- times of its width
- times of its height
- times of its height
The present cropping intensity of Rajasthan is around - (RJ ARO Agro 2022)
- %
- %
- %
- %
In acid soil, toxicity of the following nutrient/s dose not hampers plant growth – (RJ ARO Agro 2022)
- Hydrogen
- Manganese
- Aluminium
- Carbon
The activity of which of the following generally decreases under drought stress? (RJ ARO Agro 2022)
- Abscisic acid
- Ethylene
- Betaine
- Cytokinin
Weeds which are totally weedy in nature and have no use to farmers are - (RJ ARO Agro 2022)
- Troublesome weeds
- Noxious weeds
- Absolute weeds
- Obnoxious weeds
The actual K content (%) of a fertilizer sample having 1% K2O will be - (RJ ARO Agro 2022)
A wet spell is defined as – (RJ ARO Agro 2022)
- Continuous more than two days with rainfall of >2.0 mm per day
- Continuous more than five days with rainfall of >2.0 mm per day
- Continuous more than two days with rainfall of >2.5 mm per day
- Continuous more than five days with rainfall of >2.5 mm per day
The recommended rate of application of Diclofop Methyl in wheat is - (RJ ARO Agro 2022)
- 0.6 kg/ha
- 1.0 kg/ha
- 1.3 kg/ha
- 1.7 kg/ha
The heavy rain occurs when the precipitation intensity is - (RJ ARO Agro 2022)
- >5.6 mm per hour
- >7.6 mm per hour
- >10.6 mm per hour
- >50 mm per hour
The term 'QPM' is associated with - (RJ ARO Agro 2022)
- Mustard
- Millets
- Maize
- Mushroom
The total food grain production in Rajasthan during 2020-21 is- (RJ ARO Agro 2022)
- lakh tonnes
- lakh tonnes
- lakh tonnes
- lakh tonnes
In India, the recommended herbicide for weed control in maize is - (RJ ARO Agro 2022)
- Isoproturon
- Halosulfuron-methyl
- Metsulfuron-methyl
- Cyhalofop-butyl
Economic optimum dose of a nutrient is calculated, if the yield response is - (RJ ARO Agro 2022)
- Quadratic
- Exponential
- Linear
- None of the above