The major soil fertility problems in Pakistani soils deficiencies of N, P and Zn. Deficiencies K, Fe, and B also occur in specific crop genotypes or soil types, while deficiencies of S, Cu, and Mn are negligible. however, the common nutrient deficiencies are_________________: and some micronutrients including Mo?

A. N, P, K
B. Ca, Mg, S
C. both A & B
D. The above statement is wrong

Submitted by: Shafiq Rehman

Related Mcqs:

The diagnostic techniques used in evaluating soil nutrient status and determining fertilizer requirements of the crop include:
A. Nutrient deficiency symptoms & field experimentation
B. Greenhouse pot experimentation & soil testing
C. Plant analysis
D. All of the above
Submitted by: Shafiq Rehman
Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:
A. Mull
B. Mulch
C. Mycorrhizae
D. Muck
Submitted by: Shafiq Rehman
According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?
A. Drought stress
B. Accelerated erosion & salinization
C. Depletion of soil fertility and SOM
D. All of the above
Submitted by: Shafiq Rehman
Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?
A. Peat soil
B. solonchalk soil
C. Muck soil
D. Both a and c
Submitted by: Shafiq Rehman
Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?
A. Alkaline
B. Very much acidic
C. Calcareous
D. both A & C
Submitted by: Shafiq Rehman
Immobile nutrient in soil is:_________?
A. P
B. N
C. Mg
D. None of the above
Submitted by: Shafiq Rehman
Phosphorus (P) is the second major nutrient essential for plant growth. With the exception of Nitrogen (N) and Potassium (K), Phosphorus is required by plants in_________?
A. Lesser quantities
B. Greater quantities
C. Not required
D. The above statement is wrong
Submitted by: Shafiq Rehman
Organic Soils are classified as ____________ and are also known as ____________ soils:
A. Alfisols. fine & coarse textured
B. Histosols, peat & muck
C. Ultisols, Fe & Al rich
D. None of the above
Submitted by: Shafiq Rehman
Organic matter decomposes rapidly in Pakistani soils because of ____________ conditions, that is why our soils generally have < 1% organic matter:
A. High temperature
B. Alkaline
C. Both a & b
D. None of a & b
Submitted by: Shafiq Rehman
The forest soils have lower bulk density than agricultural soils because of their ______ content.
A. High organic matter
B. Low organic matter
C. Both a & b
D. None of these
Submitted by: Adnan