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

Laterisation involves the following:
Water erosion follows the sequence:
(A) Ravine
(B) Sheet
(C) Splash
(D) Rill
(E) Gully

Match List-I with List-II:

Following are four stages of group development. Arrange them in order:
(A) Healing stage
(B) Development stage
(C) Stabilisation stage
(D) Formation stage
Assertion (A): Liming should not be done along with ammoniacal fertilizer application.
Reason (R): Liming leads to volatilisation loss of ammonia.
A personnel who because of special interest and fitness is selected to serve as a leader in advancing some phase of local extension programme is called
Assertion (A): Intense weathering of soil shifts its Zero Point Charge towards higher pH owing to greater accumulation of iron and aluminium oxides.
Reason (R): The application of organic matter in soil also pushes the soil Zero Point Charge towards higher pH.
Assertion (A): Free silica occurs in soil's quartz and opal.
Reason (R): Quartz consists of a continuous framework of silica tetrahedra.
Element associated with urease activity
Given below are two statements:
Statement (I): Acid sulfate soils can release harmful concentrations of heavy metals such as aluminum, iron, and manganese into the environment under acidic conditions.
Statement (II): Acid sulfate soils are typically characterized by their high organic matter content, which contributes to their fertility and ability to support diverse plant life.
Who first observed that legumes can utilize atmospheric nitrogen?
Assertion (A): Manganese deficiency in plants primarily affects the photosynthetic process.
Reason (R): Manganese is a cofactor for several enzymes involved in the photosynthetic electron transport chain, facilitating electron transfer reactions within chloroplasts.

Match List-I with List-II:

Arrange the following in increasing the amount of nitrogen in the fertilizers:
(A) Ammonium sulphate
(B) Ammonium nitrate
(C) Ammonium chloride
(D) Calcium ammonium nitrate

The most dominant exchangeable cation in the earth's crust

Which of the following statement(s) is/are true for tensiometer?
(A) It measures soil water potential.
(B) It is simple in operation and very useful for scheduling irrigation.
(C) It can also be used for measuring soil water flux.
(D) Although limited to &lt: 1 bar matric potential, this range can be increased by increasing the permeability of its porous cup.

Which sugar is present in DNA?
The soil hydraulic head is expressed by
Father of Modern Organic Agriculture is
The characteristic of Saline-Alkali soil are
Assertion (A): Cover cropping is a common practice in organic farming systems.
Reason (R): Cover crops help to improve soil health, suppress weeds, and enhance biodiversity, aligning with the principles of organic agriculture.
Which one of the following is not a monosaccharide?
Given below are two statements:
Statement (I): 2:1 layer silicates consist of two tetrahedral sheets bound to either side of an octahedral sheet
Statement (II): Two tetrahedral sheets of 2:1 layer silicates is bound to one side of an octahedral sheet in 2:1 layer silicates

Match List-I with List-II:

When rainfall is inadequate to meet the evapotranspiration losses, usually occurring in humid regions, it is called