The sever salinity problem has taken lands out of production as___________________?
The sever salinity problem has taken lands out of production as___________________?
A. 50%
B. 10%
C. 45%
D. 30%
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The available form of nitrogen for plants is_________________?
The available form of nitrogen for plants is_________________?A. NO3
B. NH4
C. Both a and b
D. non of theseThe allelochemicals are broadly classified as_______________?
The allelochemicals are broadly classified as_______________?A. Cytokinin and ethylene
B. Phenolics and. terpenoids
C. Trytophan
D. non of thereThe soil are contains__________________?
The soil are contains__________________?A. Less oxygen as compared 10 atmosphere
B. More carbon dioxide as compared to atmosphere
C. Both a & b
D. None of the aboveIn 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 KmDwarf varieties of wheat are more resistance to_______________?
Dwarf varieties of wheat are more resistance to_______________?A. Disease
B. Insect pest
C. Lodging
D. VirusesThe depth of irrigation water required for the full crop period is called_________?
The depth of irrigation water required for the full crop period is called_________?A. Delta of water
B. Water required
C. Crop water required
D. None of these