In cotton, zn deficiency is known as_________?
A. Fern leaf
B. Mottle leaf
C. Little leaf
D. None of these
Soil Science
1 mg of H+ will be equal to_________?
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
The unique soil environment under the influence of plants roots is called rhizosphere and this term was given by__________?
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
The credit for identifying the essentality of K, Ca, Mg and P to planta goes to________?
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.
Rate of entry of water in soil is__________?
Rate of entry of water in soil is__________?
A. Infiltration
B. Percolation
C. Leaching
D. Seepage
Which leaf of rice is sampled for tissue nutrient analysis?
Which leaf of rice is sampled for tissue nutrient analysis?
A. Mature leaf
B. Lower leaf
C. Both A & B
D. None of these
During decomposition of organic matter, inititial decomposition is dominated by:__________?
During decomposition of organic matter, inititial decomposition is dominated by:__________?
A. Actinomycetes
B. Bacteria
C. Fungi
D. Both B & C
The instrument used for measuring the photosynthetically active radiations (PAR) is:________?
The instrument used for measuring the photosynthetically active radiations (PAR) is:________?
A. Pyrheliometer
B. Pyrgeometer
C. Quantom sensor
D. Both A & C
The credit for identifying the essentality of nitrogen to plants goes to________?
The credit for identifying the essentality of nitrogen to plants goes to________?
A. Dr.Muhammad Sharif
B. Theodore-saussure
C. Shafiq Baloch at.el
D. Sach and knoop
What kind of nitrogenous (N) fertilizers should not be used for flooded soil:
What kind of nitrogenous (N) fertilizers should not be used for flooded soil:
A. Ammonical
B. Nitrate
C. Ammonical-nitrate
D. Both B & C