List of top Agronomy Questions on Soil Nutrient asked in ICAR AIEEA (PG)

Given below are two statements:
Statement I: Conservation agriculture involves no-tillage or drastically reduced tillage, but biological tillage is allowed.
Statement II: During the initial years of conservation agriculture, there is a heavy infestation of weeds but it decreases with passing years.
In light of the above statements, choose the most appropriate answer from the options given below:

The fertilizer phosphorus use efficiency under optimum condition is

Moisture availability index of 0.34 to 0.67 indicates which of the following class?

NIASM is located at

Arrange the following major events in dryland agriculture research in chronological order of their establishment:
A. ICRISAT
B. AICRP-DA
C. ORPs
D. KVK
E. CRIDA
Choose the correct answer from the options given below:

Which of the following indicates a situation of hidden hunger in plants?

The concentration of macronutrients in dry plant tissues is

In soil plaque method of soil fertility assessment developed by Winogradsky, which microorganism is studied?

Which of the following is not a 1:1 type clay mineral?

What amount of Urea, SSP, and MOP is required for application in the wheat crop at the rate of 120, 64, 30 kg N, P₂O₅ and K₂O ha⁻¹?

Given below are two statements:
Statement I: Organic manures contain a low amount of nutrients and are applied in large quantities.
Statement II: Nutrient fractions in organic manures are in organic nature only.
In light of the above statements, choose the most appropriate answer from the options given below:

A solution contains 1/10000 moles/l of H⁺ ions. What is the concentration of hydroxyl ions in this solution?

Given below are two statements:
Statement I: Ammonium sulphate can supply nitrogen, calcium and sulphur to crops.
Statement II: Ammonium sulphate is the most suited nitrogen fertilizer for acidic soils.
In light of the above statements, choose the most appropriate answer from the options given below:

Nutrient index approach of soil fertility evaluation was proposed by

Given below are two statements:
Statement I: Single superphosphate, double superphosphate, and triple superphosphate are monocalcium phosphates.
Statement II: Monocalcium phosphates are water-soluble and thus have high leaching losses.
In light of the above statements, choose the most appropriate answer from the options given below:

Benzoquinones and quinones are

The important event in the early history of agriculture started in 4400 BC:
A. Domestication of sheep
B. Wheat and Barley cultivation
C. Maize cultivation
D. Potato cultivation
E. Rice cultivation
Choose the correct answer from the options given below:

ICAR - Central Research Institute for Dryland Agriculture is located at

An amino acid induced during moisture stress condition and also known as stress indicator is

The point at which CO2 uptake exactly balances CO2 release is called

Plastids that contain high concentrations of carotenoid pigments rather than chlorophyll pigments are