A. Dr.Muhammad Sharif
B. Theodore-saussure
C. Shafiq Baloch at.el
D. Sach and knoop
Soil Science
The instrument used for measuring the photosynthetically active radiations (PAR) is:……..?
A. Pyrheliometer
B. Pyrgeometer
C. Quantom sensor
D. Both A & C
During decomposition of organic matter, inititial decomposition is dominated by:……….?
A. Actinomycetes
B. Bacteria
C. Fungi
D. Both B & C
Which leaf of rice is sampled for tissue nutrient analysis?
A. Mature leaf
B. Lower leaf
C. Both A & B
D. None of these
Rate of entry of water in soil is……….?
A. Infiltration
B. Percolation
C. Leaching
D. Seepage
The credit for identifying the essentality of K, Ca, Mg and P to planta goes to……..?
A. C. Sprengel
B. Theodore Saussure
C. Dr. Muhammad Sharif et al.
D. Shafiq Khalil et al.
The unique soil environment under the influence of plants roots is called rhizosphere and this term was given by……….?
A. Hiltner
B. Aristotle et al.
C. A.Q khan
D. Helium. S. Denial
1 mg of H+ will be equal to………?
A. 20 mg of ca2+
B. 12 mg of Mg2+
C. 9 mg of Al3+
D. All of the above
In cotton, zn deficiency is known as………?
A. Fern leaf
B. Mottle leaf
C. Little leaf
D. None of these
Exposure of the manures to rains causes highest loss of………..?
A. N
B. Cu
C. Cl
D. P