Penetrometer are used for measuring__________________?
A. Soil tilth depth
B. Soil moisture
C. Soil compaction
D. Soil seepage
Month: March 2019
2,4-d is synthetic herbicide derived from_______________?
2,4-d is synthetic herbicide derived from_______________?
A. Amino acid
B. Valine
C. Auxins
D. Cytokmins
In wheat total crop P uptake per ton of gram is about;__________________?
In wheat total crop P uptake per ton of gram is about;__________________?
A. 5-20 Kg
B. 2-3Kg
C. 5-7 Kg
D. 20-25 Kg
N mineralization is effected by soil pH_______________?
N mineralization is effected by soil pH_______________?
A. Below 6
B. Above 6
C. Above 10
D. None of the above
Low soil pH is the indication of_______________?
Low soil pH is the indication of_______________?
A. High Mg and Ca
B. High N and S
C. Low N and Ca
D. Moderate Mg and Ca
The K is predominantly in______________?
The K is predominantly in______________?
A. Leaves
B. Straw
C. Grain
D. All the above
In Pakistan the area effected due to water erosion is about_________________?
In Pakistan the area effected due to water erosion is about_________________?
A. 12 million to
B. 13.05 million lia
C. 22 million ha
D. 15 million lva
In Pakistan, the total length of canal system exceeds________________?
In Pakistan, the total length of canal system exceeds________________?
A. 59000 Km
B. 52000 Km
C. 58000 Km
D. 60000 Km
Number of crops grown on the same piece of land in a year and expressed in percentage is known as_______________?
Number of crops grown on the same piece of land in a year and expressed in percentage is known as_______________?
A. Cropg pattern
B. Cropg index
C. Crop rotation
D. Cropg intensity
The transport of a substance across a biological membrane against a concentration gradient is called___________________?
The transport of a substance across a biological membrane against a concentration gradient is called___________________?
A. Passive transport
B. Active transport
C. Absorption
D. Dissolution