Find the wrong number in given number series.

The EC of Sodic soil is __mmho/cm at 25 ℃ .

What term is used to describe the process when the parent material is moved or transported primarily by the force of gravity?

………………………….. is designed to break up hard layers or pans without bringing them to the surface.

The study of soil from the stand point of higher plants is known as……………………….

Which of the following nutrients is categorised under macro nutrients under the mineral and nutrition classification?

The disorder of carrot that occurs due to undecomposed manure and hard soil pan

Which of the following primary tillage operation is used to invert the soil partially or completely?

Soil structural units having horizontal axis much longer than vertical axis. Such type of soil structure is known as

Element involved in nitrogen fixation

Which organic component, constituting approximately 10-30% in plant tissues, is often categorized as "very slowly decomposed"?