Home
About Us
Contact Us
Privacy Policy
Search
Home
→
Soil Science
→
The dominance of acidity creates toxicity?
Related MCQs
Father of soil conservation and Father of Pedology respectively?
Which of the following crops is most tolerant to salty soils?
Soil pores created by the animal such as earthworm and plant root are called_________?
Aridisols cover the largest in Pakistan_______?
The soils in which the weathered material is taken away to other place by several agents are called__________?
International Union of Soil Sciences (IUSS), founded in__________?
Nitrosomonas and nitrobacter are together as called__________?
Which of the following soil has the highest water holding capacity_________?
Element responsible pollen grain of plant__________?
Specific heat of organic matter is______?
What is a soil horizon?
Accumulation of soluble salts in soil________?
The largest soil order in Pakistan?
The marble is a__________?
Which type of soil is found near the canal banks:
A and B horizon is called as_________?
Who consider the various properties of soil in relation to plant production?
The process by which nutrients chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil:
Available water is held between?
Which of the following is not a metamorphic rock?
Which nutrients are immobile in plants?
Which element is found highest in earth crust?
Specific heat is higher in:
BGA was discovered as a nitrogen fixer in paddy field by ?
Decomposition of the organic matter in submerged soil is carried out by?
Which element is known as chemical police man of plant?
Which of the following nutrient elements are regarded as energy exchangers:
A mineral horizon that is either too thin, too light in colour, too low in organic matter:
Soil Organic Matter (SOM) which consists of about _______ % organic carbon plays a vital role by providing macro & micro nutrients:
Each layer of phyllosilicates is composed of two types of sheets:
The internal & external surfaces of soil colloids are positively and or negatively charged. Mostly __________ is dominant:
Which of the following is not the soil order prevail in Pakistan?
Which of the following is wrong?
The availability of essential nutrients from soil to the plants is controlled by the ________ properties of soil:
Conservation agriculture improves the water use efficiency of dryland systems. It has components:
The planned development, distribution and use water resources:
Water is the major constituent of all living creatures. Biomass of plants is composed of ________% water:
Based on their diameters, soil pores are divided into:_________?
Depending on the percentage of sand, silt, clay, soils are divided into _______ textural classes:
__________ particles range in diameter between 0.02 to 0.002 mm:
Systematic examination of soil in the field and laboratories, their description and grouping according to classification system:
swelling clay soils, develop cracks due to greater proportion of swelling type clays:
There are twelve soil orders found in the world of which six soil orders have been recognized at various locations are________?
_________is probably the most important growth limiting factor in acid soils especially those having pH below 5.0-5.5?
The removal of excess water from the ground surface is called:________?
What is the effect of application of P2O5 fertilizer to a green manure leguminous crop in the availability of phosphorus to the succeeding crop?
Ground water refers to the________?
The percentage of calcium content in single superphosphate?
The tension of the water at the upper plastic limit is equivalent to pF value:
Clay and humus particles are referred to as colloids and are less than 0.002mm. Due to their small size, colloids have __________ surface area which provides surface for adsorption, catalysis, precipitation and microbial colonization:
Soil samples are collected:
The dominance of acidity creates toxicity?
A. Mo
B. Al
C. Zn
D. Mg
Submitted by:
Mir Mehrbiyar
Correct Answer:
Al
✔
Last Updated:
January 02, 2021