List of top Agronomy Questions

Jasmonate is synthesized in plant from

Which of the following dyes is used for testing the viability of seeds?

Oat has a protein composition of 80 percent

The halophytes which can resist a wider range of salt concentrations are known as:

The first country which adopted an agroforestry policy:

The flagship scheme "Swachh Bharat Mission" was launched by Government of India in _____.

In which of the Indian States, shifting cultivation is practiced

The sulphur content (%) in the following fertilizers are:
(A). Single superphosphate (SSP) contains 9-12% S.
(B). Ammonium sulphate contains 16% S.
(C). Potassium sulphate contains 18% S.
(D). Ammonium phosphate sulphate contains 15%.
Choose the correct answer from the options given below:

The physical process of soil degradation:

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): NBPT (N-(n-butyl) thiophosphoric triamide) (commercial name Agrotain\textregistered) is a widely used urease inhibitor.
Reason (R): It competes for active sites on the urease enzyme and ties up activity for about 25 days.
In light of the above statements, choose the correct answer from the options given below:

Given below are two statements:
Statement (I): In strongly acidic soils, \(\text{H}_2\text{PO}_4^-\) form dominates, while in alkaline soils, P is largely present as \(\text{HPO}_4^{2-}\) form.
Statement (II): Plant takes both the form of \(\text{H}_2\text{PO}_4^-\) and \(\text{HPO}_4^{2-}\) in equal amounts for their growth and development.
In light of the above statements, choose the most appropriate answer from the options given below:

Read the following statements about silicon:
(A). Silicon has the beneficial role in rice and sugarcane crops.
(B). It contributes to rigidity and strengthening of the cell wall.
(C). It enhances the physiological availability of zinc in plants and counteracts zinc-deficiency-induced phosphorus toxicity.
(D). Nearly, 60% of the mineral matter of most of the soils consists of the combined oxides of silicon, aluminium and iron.
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): The principles of conservation agriculture are minimum soil disturbance, permanent soil cover and mixing and rotating crops.
Statement (II): The three factors important for the success of CA are timely operations, precise operations and efficient use of inputs.
In light of the above statements, choose the most appropriate answer from the options given below:

According to IMD, a day is called as rainy day if the minimum amount of rainfall during a period of 24 hours is:

Critical limit of HCN in sorghum (dry wt. basis) is:

For applying 100 kg N/ha, how much urea would be required

The most suitable group of crops for dryland agriculture is:

Which crop among the following is relatively most tolerant to salinity:

What will be the WUE (kg/ha/mm), if wheat crop used 40 cm of water during whole period and yielded 4.0 t/ha of grains

Accumulation of soluble salts in soil is called as:

Brays No. 1 reagent consists of mixture of

Read the following statements carefully regarding fertilizer amendments:
(A). 2-Chloro-6-trichloromethyl pyridine
(B). 2 Amino-4-chloro-6-methyl pyrimidine
(C). Phenyl phosphoro diamidate
(D). Dicyandiamide
Choose the correct answer from the options given below:

Available water for plant indicates water held between:

The major mechanism of reducing heat from the crop canopy is: