The tree sends down roots from its branches to the soil is know as:_______?
A. Oak
B. e
C. Banyan
D. Palm
Soil Science
Which mulch reduce soil temperature?
Which mulch reduce soil temperature?A. Polythene
B. White polythene
C. Black polythene
D. Both B&C
B. White polythene
C. Black polythene
D. Both B&C
Humic acid is soluble in____________________?
Humic acid is soluble in____________________?
A. Acid
B. Alkali
C. Both a & b
D. None of the above
In flood rice, snail feed on bacteria called__________________?
In flood rice, snail feed on bacteria called__________________?
A. Helix
B. Limnea
C. Azolla
D. None of the above
Which bacteria convert nitrite to nitrate___________________?
Which bacteria convert nitrite to nitrate___________________?
A. Frankia
B. Nitrobacter
C. Pseudomonas
D. None of the above
Examples of macrobiota are______________________?
Examples of macrobiota are______________________?
A. Enchytrids
B. Fungus
C. Bacteria
D. Plants
Part of soil which is in contact with root surface is called___________________?
Part of soil which is in contact with root surface is called___________________?
A. Rhizoshpere
B. Lithoshpere
C. Atmoshpere
D. None of the above
Point of zero change means____________________?
Point of zero change means____________________?
A. All the covalent bonds
B. Zero charge at surface
C. All are ionic bond
D. None of the above
The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?
The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?
A. Mo
B. Al
C. Fe
D. All the above
The salinity can be reduced by the application of___________________?
The salinity can be reduced by the application of___________________?
A. Lime
B. Sulphuric acid
C. Urea
D. All the above