Soil Fertility

IMPORTANT

Soil Fertility: Overview

This topic covers concepts, such as, Soil Profile, Soil Fertilization, Light and CO2 limitations, Soil Depletion & Irrigation Water Effects etc.

Important Questions on Soil Fertility

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 1

Match the following --
List-I
A. Azospirillum
B. Azotobacter
C. VAM
D. Azolla
List-II
1. Helps in phosphorus uptake.
2. Floating aquatic fern.
3. Grows on and inside the roots of graminaceous crops.
4. Free-living nitrogen fixing bacterium.

MEDIUM
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 2

The critical stages of irrigation in cotton are-

HARD
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 3

Which of the following is the main genetic factor that is responsible for poor fruit set in custard apple?

HARD
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 4

The number of essential elements for plant growth is:

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 5

Which micro-organism is present in large quantities in soil?

A. Bacteria
B. Virus
C. Fungi
D. Protozoa

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 6

 Which type of soil is mostly found in India? 

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 7

What is the pH value of Alkaline soil?

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 8

Which of the following is most fertile soil? 

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 9

The term riparian erosion is applied to _____. 

EASY
IMPORTANT
General Awareness>Soil and Soil Conservation>Soil Fertility> Q 10

Dark coloured soils are considered most fertile as they contain _____.