List of top Agronomy Questions

The process of converting atmospheric nitrogen into a form usable by plants is called:
Which weed is known as 'Congress grass'?
Which cropping system involves growing two or more crops simultaneously on the same field?
The 'Law of the Minimum' was proposed by:
Which nutrient is classified as a secondary macronutrient?
The term 'Allelopathy' refers to:
Which of the following is a C$_4$ plant?
The critical stage for irrigation in wheat is:
Which of the following crops is most sensitive to waterlogging conditions?
Mungbean seed required for the sowing one hectare land at 30cm x 10cm spacing with 92 per cent germination, 85 per cent purity and 36g weight of 1000 seed will be .
Essential micronutrient required for the biosynthesis of auxin is .
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A): A series of cellulolytic enzymes are employed in the wood degradation process by brown rot fungi.

Reason (R): Lignin is not degraded by these fungi, therefore, it has typical brown colour wood remains.

In light of the above statements, choose the most appropriate answer from the options given below.
Arrange the following spores of black rust fungi in their I to IV spore stages.

(A) Basidiospore
(B) Uredospore
(C) Aeciospore
(D) Teliospore

Choose the correct answer from the options given below:
Given below are two statements:

Statement (I): According to response of length of day and night on the flowering of plants, they are classified as long day or short day plants.

Statement (II): Wheat and oat are long day plants.

In light of the above statements, choose the most appropriate answer from the options given below.
The causal organism of downy mildew of grapevine is .
Match Chemicals with their Use.
ChemicalUsed as
(A) Thiophanate-methyl(I) Weedicide
(B) Atrazine(II) Insecticide
(C) Fenamiphos(III) Fungicide
(D) Afidopyropen(IV) Nematicide

Choose the correct answer from the options given below: