List of top Questions asked in ICAR AIEEA (PG)- 2021

Match List I with List II
Choose the correct answer from the options given below:
In which of the following Azolla symbiotically associates to fix atmospheric nitrogen?
The organisms involved in the process of conversion of nitrate to nitrogen gas is
Phosphorous is taken up by the plant from the soil in the form of
Die-back symptoms in citrus are observed due to the deficiency of
Which of the following is the concentrated organic manure
Which of the following methods CANNOT be used to prevent N loss through denitrification?
Soil pH is measured from the soil water suspension in the ratio of
The structural formula of phyllosilicates is
The organisms Cyanobacteria were formerly known as
Which of the following biofertilizer is used to fix Nitrogen from the atmosphere nonsymbiotically
Which of the following element is the latest inclusion as the essential nutrient element
The oxygen diffusion rate (ODR) is measured by the method of
Which of the following is NOT related to anion exchange capacity?
Rate of flow of water through a porous medium under unit hydraulic gradients is known as
Stoke's law suggests that the velocity of fall of particles is directly proportional to
Match List I with List II
Choose the correct answer from the options given below:
Which of the following structure is most desirable for agricultural operations
Given below are two statements
Statement I: Higher exchangeable sodium ($>$15%) makes the soil dispersed and favours soil crustation
Statement II: Exchangeable calcium in soil helps in forming stable soil aggregates by its effect of flocculation
In light of the above statements, choose the correct answer from the options given below
In which of the indices of soil structure, the logarithm of mean diameter is used
In the irrigation water quality classification, high salinity class represents EC (dS/m) in the range of-
Which one of the following is the active formers in soil development
Match List I with List II
Choose the correct answer from the options given below:
Given below are two statements
Statement I: The epipedon which is light in colour and contains $<$1% organic matter is known as Ochric epipedon
Statement II: Dark coloured epipedon having $>$50% base saturation and organic matter of $>$1% is known as Histic epipedon
In light of the above statements, choose the correct answer from the options given below
Which of the following relationship is correct