In cotton, zn deficiency is known as_________?
In cotton, zn deficiency is known as_________?
A. Fern leaf
B. Mottle leaf
C. Little leaf
D. None of these
Soil Science
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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