List of top Physical Sciences Questions asked in ICAR AIEEA (PG)

Suppose roots, straw, and grain of a wheat crop producing dry matter of 2.5 t/ha, 6 t/ha, and 4 t/ha contain 0.2%, 0.5%, and 1.2% N, respectively. How much total N uptake by wheat?
Highest wind erosion has occurs in
Identify the most critical stage of wheat when irrigation is required
The most important soils for agriculture are
Which crop removes maximum N from the soil?
Which soil order stands for recent alluvial soil?
Erosion-resistance crop is
Thornthwaite's formula is used for the calculation of
Which of the following is an example of a non-edible oilcake is NOT suitable for feeding cattle?
Which of the following crops has maximum water requirement?
Farmers Information and Advisory Centre (FIAC)
Land Capability class I is denoted by which color?
Biological measures for soil erosion is
Water use efficiency in increasing order
Irrigation is likely to be used, where the water supply is ample and the market value of the crop is low
Which of the following manure has the highest content of Nitrogen?
Given below are two statements:
Statement I: Dominance of $\text{Ca}^{2+}$ and $\text{Mg}^{2+}$ on the clay exchange complex decrease the zeta potential that results in the flocculation of clay particles.
Statement II: High $\text{Na}^+$ saturation in the soil increases the zeta potential resulting in dispersion of clay particles.
In light of the above statements, choose the correct answer from the options given below:
Which of the following is NOT a micro-irrigation system?
The cation exchange capacity of clay minerals follows in the order of
Given below are two statements:
Statement I: The permanent charge of silicate clay minerals results from isomorphous substitution within the clay lattice.
Statement II: The pH-dependent charges depend on the dissociation of $\text{H}^+$ ions from the edges of the crystal unit.
In light of the above statements, choose the correct answer from the options given below:
Vesicular Arbuscular Mycorrhiza has an important role in increasing the availability of
Given below are two statements:
Statement I: $\text{Al(OH)}^{2+}$ ion is predominant in soil between pH 4.7 & 6.5
Statement II: $\text{Al}^{3+}$ ion is predominant in soil pH below 4.7
In light of the above statements, choose the correct answer from the options given below:
Match List I with List II
List I (Weathering Reaction):
A. $\text{CaSO}_4 + 2\text{H}_2\text{O} \rightarrow \text{CaSO}_4 \cdot 2\text{H}_2\text{O}$
B. $2\text{Fe}_2\text{O}_3 \rightarrow 4\text{FeO} + \text{O}_2$
C. $\text{KAlSi}_3\text{O}_8 + \text{HOH} \rightarrow \text{HAlSi}_3\text{O}_8 + \text{KOH}$
D. $4\text{FeO} + \text{O}_2 \rightarrow 2\text{Fe}_2\text{O}_3$

List II (Weathering process):
I. Oxidation
II. Hydration
III. Reduction
IV. Hydrolysis

Choose the correct answer from the options given below:
Naturally formed aggregates are known as
Which of the following suborder belongs to the order of Alfisols?