List of top Questions asked in ICAR AIEEA (PG)

Methemoglobinemia disease is caused due to toxic concentration of
Mineral having maximum cation exchange capacity is
Ammonium sulphate fertilizer is advisable for
The use of Stokes' law for measurement of the size of soil particle depends on certain simplifying assumptions. These are:
A. Particles must be spherical, smooth and rigid
B. Fall must be unhindered
C. Particles must be of uniform density
D. Size of particles must be small compared to the size of molecules of liquid
Choose the correct answer from the options given below:
A typical mineral soil, on volume basis, contains:
The bulk density is expressed as:
A. g/$\text{cm}^3$
B. Mg/$\text{m}^3$
C. kg/$\text{m}^3$
D. g/$\text{m}^3$
Choose the correct answer from the options given below:
The most abundant minerals and mineral groups in sand and silt of soils throughout the world is:
The sulphur (S) containing mineral is:
Following are the statements with respect to economization of irrigation water in rice
A. Rice should be cultivated on heavy soils with percolation above 5 mm per day
B. Subsoil loosening to enhance water flux to soil.
C. Rice should be grown in small isolated blocks to reduce seepage
D. Application of tank silt to light soils
E. Puddling to reduce soil permeability
Choose the correct answer from the options given below
Read the statements with respect to water management in maize
A. Most critical stage for irrigation is flowering period including tasseling, silking and pollination
B. Water deficit at flowering stage causes heaviest yield loss mainly due to reduction in grain size
C. Under the conditions of adequate irrigation water, irrigations should be applied at 25 % depletion of available soil moisture
D. Under the conditions of adequate irrigation water, irrigations should be applied at IW/CPE of 0.6 or 0.8 throughout growth period of crop
E. As maize is mostly grown in rainy season, applying irrigation is wasteful
Choose the correct answer from the options given below:
If irrigation water is NOT limited, groundnut grown in a sandy loam soil should be irrigated throughout crop period using which of the following schedule
An area of 0.6 ha each of wheat and maize is irrigated daily with a discharge of 2000 litre per minute for a period of 15 hours. Each crop receives 8 cm of water. Determine efficiency (%) of irrigation system
Irrigation requirement of 90 days duration maize variety is 50 cm. How much area can be irrigated with a flow rate of 20 litre per second for 8 hours in a day.
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Sulphuric acid can be used to amend water quality and can be applied directly to soil or in the irrigation water
Reason R: Sulphuric acid rapidly neutralizes the Na constituents of water or reacts with lime in the soil to produce soluble Ca
In light of the above statements, choose the most appropriate answer from the options given below:
Drainage of one ha-cm in 24 hours equals to drainage of how much water
Dew can also be a water resource; accumulation of dew in north and north-east India during 6 months from October to March is
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Ratio between the area of crop irrigated and quantity of water applied to the crop is called as delta
Reason R: Any crop management practice aimed at economy in irrigation water application increases delta
In light of the above statements, choose the most appropriate answer from the options given below
Correct order of irrigation terminologies with respect to amount of water involved during a given event of irrigation (WR stands for water requirement, IR for irrigation requirement, NIR for net irrigation requirement and E for evaporation)
A 5 ha wheat crop field was supplied with 6 cm depth of irrigation, compute how many liters of water has gone into the field.
Match List I with List II
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Choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: When the water moving downward through a fine textured soil encounters a layer of course sand, the downward movement is temporarily increased until the soil suction in wetting front is sufficiently reduced
Reason R: Presence of large macrospores in the coarse sand are too large to take in water from the unsaturated microspores of the soil rapidly.
In light of the above statements, choose the most appropriate answer from the options given below
Match List I with List II
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Choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The probe of a neutron moisture meter is inserted into an access tube fixed vertically in the soil
Reason R: The probe of a neutron moisture meter contains a source of fast protons and a detector of slow electrons and helps in estimating soil moisture content
In light of the above statements, choose the most appropriate answer from the options given below
A herbicide for the control of Lantana camara
Imperata cylindrica is propagated by means of