List of top Questions asked in Indian Council of Agricultural Research All India Entrance Examination for Admission

Microorganisms that oxidise ammonia to nitrite
(A) Nitrosomonas
(B) Thiobacillus
(C) Nitrobacter
(D) Nitrosolobus
Choose the correct answer from the options given below:
According to Bray’s Nutrient Mobility concept, which among following element is mobile in plants but immobile in soil?
The term oligotrophic refers to

Match List-I with List-II:

Arrange the following in decreasing order of Basal Spacing:
(A) Kaolinite
(B) Montmorillonite
(C) Illite
(D) Vermiculite
Choose the correct answer from the options given below:
Which of the following is/are the example of nitrifying bacteria?
Mottle leaf of citrus is caused by the deficiency of
Dolomite is a source of
(A) Calcium
(B) Magnesium
(C) Iron
(D) Sulphur
Choose the correct answer from the options given below:
The parameters of N use efficiency are
(A) Apparent N. recovery
(B) Agronomic efficiency
(C) Production efficiency
(D) Physiological N efficiency
Choose the correct answer from the options given below:
Elements associated with nitrogenase enzyme in biological nitrogen fixation
(A) Molybdenum
(B) Iron
(C) Copper
(D) Nickel
Choose the correct answer from the options given below:
The steady-state soil infiltration rate is
Assertion (A): Equilibrium water content in soil at a certain matric potential is higher when the soil is under the drying process (desorption) compared to when the soil is under the wetting process (sorption).
Reason (R): The contact angle between water and the soil solid phase is greater during the imbibition of water than during drainage.
Which of the following nutrient is related with deficiency symptoms like discoloration of leaf buds, breaking and dropping of buds?
Organic nutrients in water bodies promote
Statement (I): Single superphosphate, double superphosphate, triple superphosphate are mono-calcium phosphate.
Statement (II): Mono calcium phosphates are water soluble and thus have high leaching losses.
The amount of organic matter in a soil with 'Value 0' according to Munsell colour system is--
The organic certificate of an organic farm is valid for
Assertion (A): Gypsum is commonly used for the reclamation of sodic soil.
Reason (R): Reclamation process involves reduction in exchangeable sodium with calcium and its removal from soil solution through leaching.
Laterite soil is rich in
Arrange the following in decreasing order according to the number of linkages among silicon tetrahedra of soil particles:
(A) Nesosilicates
(B) Phyllosilicates
(C) Tectosilicates
(D) Inosilicates
Choose the correct answer from the options given below:
Model is an example of
A stem nodulating plant:
Choose the correct sequence:
The Indian Remote Sensing Satellite (IRS):
(A) Look over a fixed point at the same local time
(B) Are at a low altitude ($<$1000 km)
(C) Are used for weathering forecasting?
(D) Have large agricultural and natural resources application
(E) Provide service to telecommunications
The pF range of soft or friable consistency of soil is: