A. Kaolinite
B. Montmorillonite
C. Vermiculite
D. Illite
Which one of the following clay mineral has the highest CEC? Read More »
Soil Science A. Fungi
B. Bacteria from atmosphere
C. Plants
D. None of these
Nitrogen fixation is accomplished by:_________? Read More »
Soil Science A. Six sided arrangement
B. Eight sided arrangement
C. Four sided arrangement
D. both A & B
Silica tetrahedron is__________? Read More »
Soil Science A. Mo
B. Al
C. Zn
D. Mg
The dominance of acidity creates toxicity? Read More »
Soil Science A. Winogradsky & R. Morphy
B. Winogradsky & Dokuchaev
C. Bennett & Dokuchaev
D. both A & B
Father of soil conservation and Father of Pedology respectively? Read More »
Soil Science A. Corn
B. Rice
C. Carrot
D. Cotton
Which of the following crops is most tolerant to salty soils? Read More »
Soil Science A. Biopores
B. Diameter
C. Mesopores
D. Microspores
Soil pores created by the animal such as earthworm and plant root are called_________? Read More »
Soil Science A. 259,710 km2
B. 269,810 km2
C. 278,910 km2
D. None of these
Aridisols cover the largest in Pakistan_______? Read More »
Soil Science A. Alluvial soil
B. Aeolian soil
C. Transported soil
D. None of these
A. 1624
B. 1724
C. 1824
D. 1924
International Union of Soil Sciences (IUSS), founded in___________? Read More »
Soil Science