Agronomy ICAR JRF Test - 5 — Agri Master Mind
Intermittent on and off system is followed in …… irrigation system
- Check flooding
- Level border
- Flat bed irrigation
- Surge irrigation
In India Sub surface irrigation is followed in
- Jammu and Kashmir
- Kerala
- Both A and B
- West bengal
Application of irrigation water through the furrows made for the inter cultivation is called …….
- Check basin
- Cablegation
- Corrugation
- Surge irrigation
1 MPa equals to ….
- 1 J/Kg
- 10 bars
- 100 psi
- All the above
Vapour movement tends to ….. during day and …… during night
- Upward, Downward
- Downward, Downward
- Downward, Upward
- Upward, Upward,
The first irrigation before sowing of the crop for seed germination and seedling establishment is known as …..
- Palco
- Blind irrigation
- Base irrigation
- Duty of water
Absorption of water by the roots as a result of forces originating in the leaves, such as transpiration pull and does not require energy is called …..
- Active absorption
- Diffusion
- Passive absorption
- Imbibition
Relationship of ETo,Kp and pan evaporation data is ….
- Kp = ETo.Epan
- ETo = Kp.Epan
- Epan = Kp.ETo
- Epan = Kp/ETo
Graphical representation of the relationship between matric suction and moisture content is called as ….
- Hysteresis
- Soil moisture characteristic curves
- Hydraullic conductivity
- None of these
Irrigation agronomy is written by
- V.R K Murthy
- A.M Michael
- S.R Reddy
- D.K.Majumdar
Rate of water absorbtion by plants decreased due to deficiency of
- Boron
- Manganese
- Potassium
- Iron
Major driving force in unsaturated soils is …..
- Pressure potential
- Osmotic potential
- Matric potential
- Both A and B
Percentage of fresh water in total quantity of water?
- 2.5%
- 97%
- 2.6%
- 97.5%
The proportion of total water potential that is attributed to the solid matrix of soil or plant is called ….
- Gravitational potential
- Pressure potential
- Matric potential
- Osmotic potential
shape of SMCC in clay soils ….
- L
- S
- I
- R
Possible error in radiation method is …..
- 10 %
- 15 %
- 25%
- 20%
Best and Most commonly used evaporimeter in India is ….
- Sunken screen evaporimeter
- pan evaporimeter
- Pitche atmometer
- USWB class A open pan evaporimeter
Effective Rainfall (ER) =
- ER= Rainfall-water surplus
- ER= Rainfall+water surplus
- ER= Rainfall×water surplus
- ER= Rainfall/water surplus
Approaches used for scheduling of irrigation are …
- Soil moisture depletion approach
- Combination and critical stage approach
- Climatological approach
- All the above
Visual signs of plant wilting for scheduling of irrigation are ….
- Necrosis of leaves
- Curling of leaves
- Change in foliage colour
- All except A
Flopping is a term related to ….
- Sugarcane
- Potato
- Tobacco
- Banana
Drip irrigation saves ….. % compared to conventional method of irrigation
- 40-70
- 20-30
- 30-50
- 15-45
Most critical stage of irrigation for mustard crop......
- Flowering
- Branching
- Germination
- Pod formation
Plant show physiological drought when......
- Decrease in salt concentration
- Increase in salt concentration
- Both of these
- None
Electrical conductivity of medium saline water
- 100 -250 milli mhos. cm-1
- 250- 750 milli mhos. cm-1
- 750 -2250 milli mhos. cm-1
- 1-100 milli mhos. cm-1
Optimum depth of irrigation in dwarf wheat..............
- 5 – 12 cm
- 1-4 cm
- 4-8 cm
- 6- 8 cm
Field capacity generally comes ..............after irrigation
- 10- 12 hours
- 48- 72 hours
- 12- 24 hours
- 24- 48 hours
What is the cumulative pan evaporation required for scheduling of irrigation at 0.75 IW/CPE ratio, with 5 cm of irrigation is ............
- 10 cm
- 8.33 cm
- 6.66 cm
- 6.25 cm
Article of Indian constitution which deals with parliamentary power incase of inter-state river water disputes (interstate river water disputes act, 1956).........
- Article 262
- Article 92
- Article 252
- Article 300
Earth surface is covered with .............% of water
- 73
- 72
- 71
- 70
With increase in quantity of water applied, the yield of most crops...........
- Increases continuously
- Decreases continuously
- Increases upto certain limit and then Decreases
- Increases upto certain limit and then constant
………. is the disposal of drainage water through well into porous layers of the earth
- Vertical drainage
- Surface drainage
- Subsurface drainage
- Horizontal drainage
In which system of drainage laterals enter the main from both side at an angle of 450 like the bones of a fish.
- Random system
- Interception system
- Herringbone system
- Gridiron and parallel system
……… is the ratio of yield of crop (Y) to the total amount of water used in the field
- Crop Water Use Efficiency
- Field Water Use Efficiency
- Water productivity
- Transpiration ratio
Who said, water is the ELIXER of Life which makes wonders in the earth
- M.S Swaminathan
- Albert howard
- N.E Bourlag
- C.V Raman
Water present between saturation and field capacity is …
- Gravitational water
- Available water
- Capillary water
- Hygroscopic water
Which of the following is film forming type antitranspirat?
- Atrazine
- Kaolin
- Mobileaf
- PMA
Ability of rainfall to cause soil erosion is_______
- Runoff
- Erosivity
- Soil erosion
- Erodability
Which of the following is an ephemeral?
- Cowpea
- Green gram
- Black gram
- All of the above
A year in which rainfall of a particular place is short by more than ____ is known as droughtyear
- Twice the mean deviation
- Twice the standard error
- Twice the standard deviation
- Twice the median
Which herbicide is recommended for maize under dryland conditions______
- Atrazine
- Pendimethalin
- Fluchloralin
- None of the above
If the surface of the soil is loosened, it acts as a mulch for reducing evaporation. This is more practiced in which soils______
- Red soils
- Desert soils
- Black soils
- Alluvial soils
Rajasthan is divided into_____
- 9 Agroclimatic zones
- 10 Agroclimatic zones
- 11 Agroclimatic zones
- 12 Agroclimatic zones
Indian Journal of Dryland Agricultural Research and Development published by______
- Indian Society of DrylandAgriculture
- CRIDA
- CARDA
- ICRISAT
Hydrogel chemical is used as ______
- Fertilizer
- Moisture absorber
- Soil acidity
- None of the above
Drought prone area programme was started in _______
- 1970-71
- 1977-78
- 1986-87
- 1956-57
Rain drop splash and surface flow cause _______
- Splash erosion
- Sheet erosion
- Gully erosion
- Rill erosion
The word drainage basin is a synonym of _______
- a) Watershed
- b) Catchment area
- c) Both a and b
- d) None of the above
National Watershed development Programme for Rainfed Agriculture was started in_____
- 1970-71
- 1990-91
- 1977-78
- 1986-87
Central Arid Zone Research Institute is located at________
- Ludhiana
- Kanpur
- Solapur
- Jodhpur
In dryland areas there would be________
- High root to top ratio
- High root to leaves ratio
- Low root to top ratio
- Low root to leaves ratio
A test method using organism to determine the presence of herbicide effect is
- Herbicide analysis
- Bio assay
- Bio control
- None of these
If 1.35 kg/ha of fluchloralin is to be applied, Basalin 45 SL required is
- 3 litre
- 2 litre
- 1.35 litre
- 2.7 litre
Amount of Topic 10% for 4000 m2 if rate of clodinafop is 60 g/ha.
- 600 g
- 480 g
- 300 g
- 240 g
Amount of 2,4-D amine salt at 10 ppm for a pond measuring 40mx20mx5m
- 0.4 kg
- 400 kg
- 40 kg
- 4 kg
Amount of Alachlor 50% EC for spraying 12 ha maize field (given the dose 1.5 kg ai/ha)
- 36 kg
- 18 kg
- 54 kg
- 12 kg
Number of weed species identified in the world
- 30
- 300
- 3000
- 30000
Most dominant factor influencing weed composition in a field is
- Soil moisture
- Soil type
- Soil texture
- Soil temperature
Reverse metabolism induce the susceptibility to weeds by
- 2,4-D
- MCPA
- Both a and b
- None of these
Assimilatory nitrate reduction is a biochemically process involving reduction of
- NO3 to NO2 or N2O
- NO3 to NO2
- NO3 to NH4
- None of these
A soil produce biomass of 10 t ha-1, if the nitrogen content in the biomass is 1%, then total N removed by this biomass is
- 10 kg ha-1
- 100 kg ha-1
- 1000 kg ha-1
- 1 kg ha-1
The critical C: S ratio in carbonaceous material along which immobilization takes place is
- 30:1
- 40 :1
- 50 :1
- 60:1
Soil plaque technique ( Socket and Stewart ) developed to study mineral nutrient deficiency in soil makes use of
- Aspergillus
- Azotobacter
- Pseudomonas
- Baciliusmegaterium
Nitrification inhibitor reduce the nitrification process by suppressing
- Nitrosomonas activity
- Nitrobacter activity
- Ammonifiers activity
- Both a and b
Who developed the DTPA tests for available soil micronutrient?
- Kurtz LT
- Jackson ML
- Lindsay WL and Norwell
- Larsen
The water that occurs as a continuous film around the soil particles and in the micro pore space and is held tenaciously with a tension of 1/3 to 31 bar, is this water is also available to plants.
- Hygroscopic water
- Capillary water
- Gravitational water
- None of the above
Mechanical analysis of soils separates is done by
- Hydrometric method
- Pycnometer
- International Pipette method
- Both a and c
A soil having porosity of 50% contains volumetric water content of 25%. Its degree of saturation will be
- 25%
- 50%
- 5%
- 2%
The thermal conductivity of soil varies with soil texture in the order of
- Sand > loam > Clay > peat
- Clay > loam > clay > peat
- Loam > clay > sand > peat
- Peat > clay > loams > sand
[Note: Remember this sequence as SLCP]
Variable charge of a soil is present more in
- Organic colloids
- 1:1 type clay minerals
- 2:1 type clay minerals
- Both a and b
Biochemical Oxygen Demand (BO D) is
- The amount of oxygen required for microbial activity or respiration
- The amount of oxygen required for microbial degradation of the organic chemical compound
- Both a and b
- None
The decomposed form of organic matter, which cannot be decomposed further is
- Lignin
- Humus
- Phytin
- None of these
Jarosite (iron containing) and alunite (aluminium containing) are formed by the reaction of with soil minerals
- Ferrous sulphate
- Aluminium sulphate
- Sulphuric acid
- Nitric acid
Which one is not matched?
- Organochlorine – DDT
- Carbamate – Carbofuran
- Pyrethroid – Atrazine
- Organophosphate – Malathion
PGR related to drought tolerance and stress hardness in plants
- Auxins
- Ethylene
- ABA
- Cytokine
The law which expresses the flow of water in a narrow tube i.e, the rate of flow of water in sandy soil is more than that of loam and least in the clay is called as
- Darcy’s Law
- Fick’s Law
- Poiseuille’s Law
- Bayer’s Law
If the gravimetric moisture content of soil is 15% and the bulk density is 1.4 g/cc, the volumetric moisture content is
- 18%
- 24%
- 21%
- 27%
The amount of water retained in a soil expressed as percent by weight, after large capillary spaces have been drained by gravity is called
- Soil capacity
- Saturated water potential
- Field capacity
- Saturated drainage co –efficient
At the same moisture content, the moisture tension will be lowest in
- Sand
- Clay loam
- Clay
- Loam
Statement I – The greenhouse effect is the retention of heat in the lower atmosphere due to absorptions and re radiation by clouds and certain gases. Statement II – The anthropogenic greenhouse gases effect is the result of the accumulation of trace gases in the air from human activities.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – Nickel is essential for the function of urease enzyme Statement II – Nickel helps in breaking down urea into NH3 and CO2
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Cuscuta is the major dodder plant of---?
- Alfalafa
- Onion
- Potato
- All
a- Dodder is best controlled by preventing its introduction into a field by the use of dodder-free seed b- Dodder can be controlled by frequent tillage, flaming, and use of herbicides
- both are correct
- only a is correct
- only b is correct
- both are incorrect
a- Witchweed is a small, pretty plant. It has a bright green, slightly hairy stem and leaves and grows 15 to 30 centimeters high b- A single striga plant may produce from 50,000 to 500,000 seeds
- both are correct
- only b is correct
- both are incorrect
- only a is correct
a- Witchweed is difficult to control. Introduction of witchweed should be avoided by all means b- Catch crops, consisting of host plants, may be planted to force the germination of witchweed seed question
- only a is correct
- only b is correct
- both are correct
- both are incorrect
a- The damage caused by dwarf mistletoes in coniferous forests is extensive b- Trees of any age may be stunted, deformed, or killed c- Dwarf mistletoes occur wherever conifer trees grow
- All are correct
- only b and c is correct
- only a is correct
- All are incorrect
..........meaning high level of water droplets?
- Fog
- Haze
- Mist
- Aerosol
Generally pollution injury first appears as-----?
- Bud injury
- Twigs injury
- Stem injury
- Leaf injury
Ozone injury mainly occurs on------?
- Young leaves
- Older leaves
- Twigs
- None
Glazy bronzing on the underside of leaves of potato is the typical symptom of------?
- PAN
- O3
- SO2
- CO2
Which one affect the lower parts of the plant?
- N
- K
- S
- All of the above
-----Deficiency causes terminal leaves may be rosette & yellowing occurs between the veins of the new leaves?
- Mo
- B
- Zn
- Cu
-----Deficiency causes leaf tips look burnt, followed by older leaves turning a dark green or reddish purple color?
- P
- S
- Cu
- Ni
General yellowing of older leaves (bottom of plant). The rest of the plant is often light green is the symptom of?
- N
- S
- B
- Ca
----Deficiency causes chlorosis of younger leaves and wilting of the plant?
- N
- P
- Cl
- None
-----toxicity in tomato. Plants are stunted; developing leaves become white?
- Mg
- Al
- Si
- Ni
Hollow hearts in peanut caused due to deficiency of---?
- B
- Zn
- Mn
- None
Black hearts in beet caused due to deficiency of---?
- S
- K
- B
- N
-----is not mobile and is not translocated in the plant, so symptoms first appear on the younger leaves and leaf tips
- Cu
- Ni
- Mo
- Ca
P is available to plants as orthophosphate ions
- HPO4 2-
- H2PO4 –
- Both
- None
Which state of India are recognized as potential site for saffron cultivation
- Arunchal pradesh
- Meghalaya
- Both A and B
- Sikkim
Anti mathogenic feed supplement also known as
- Harit krishi
- Harit vandhura
- Harit Dhara
- Harit bhumi
APMC stand for
- Agriculture product market commission
- Agriculture produce market commission
- Agriculture produce market committee
- Agriculture profit manufacturing committee
Fortified rice kernel contains
- Iron
- Vitamin B 12
- Folic acid
- All of the above
SWAMITVA yojana aims
- To employ advanced technology
- To transform property record
- Both A and B
- None of these
Saffron derived from
- Leaves
- Flower
- Dried stigma
- Root
Minimum support price include how many khariff crop
- 6
- 2
- 14
- 19
Minimum support price include how many Rabi crops
- 14
- 8
- 6
- 20
Minimum support price include how many commercial crop
- 16
- 6
- 2
- 8
Rastriya krishi vikas yojana launched in the year
- 2008
- 2009
- 2007
- 2006
Which of the follwong crops is thermos-insensitive ?
- Jowar
- Rice
- Sunflower
- Wheat
In which of the following crops GM varieties are available for cultivation in India :
- Mustard
- Soybean
- Cotton
- All of the above
Dangerous gas for depletion of ozone layer is :
- Methane
- CFC
- Ethane
- Carbon-dioxide
The IARI was established in :
- 1904
- 1905
- 1907
- 1909
IGFRI is located at :
- Jhansi
- Jodhpur
- Jallandhar
- Jorhat
Missing data are calculated by using :
- Missing plot technique
- ANOVA
- Field plot technique
- None of these
Study of soil from the stand point of higher plant is known as :
- Edaphology
- Geo physics
- Pedology
- Physiology
The progeny of breeder seed is :
- Nucleus seed
- True seed
- Formation seed
- Certified seed
The basis of farm budgeting is :
- Farm planning
- Cost – benefit analysis
- Linear programming
- Production function analysis
A market guided by rules and regulation is called :
- Seasonal market
- Terminal market
- Perfect market
- Regulated market