A. Quartz
B. Plasma
C. Carbon
D. None of these
Soil Science
What is Vesicular Arbuscular Mycorrhiza (VAM)?
A. Bacteria
B. Fungi
C. both A & B
D. None of the above
Association of two microorganisms in which one is benefited while other remains unaffected is known as:……..?
A. Competetion
B. Ammensalism
C. Commensalism
D. This statement is wrong
Organic (O) horizon is absent in………?
A. Mollisols
B. Histosols
C. Arable soils
D. Non-arable soils
Integrated Nutrient Management (INM) is a well-accepted approach for the sustainable management of……..?
A. Soil Productivity
B. Increased crop production
C. both a and B
D. None of these
The appropriate method to apply phosphatic fertilizers is……….?
A. Top dressing
B. Broad casting
C. both A and B
D. Basal placement
The soil samples are dried at ……………, for gravimetric soil analysis?
A. 110 0C
B. 120 0C
C. both A and B
D. 105 0C
Walkley and Blacks method of organic matter determination allows recovery of …..% organic carbon content:
A. 74 %
B. 54 %
C. 62.5 %
D. 34%
Process of mixing of soils is known as………?
A. Gleization
B. Lessivage
C. Laterization
D. The correct option is not present above
Who will decompose organic matter first:
A. Actinomycetes
B. Bacteria
C. Basidiomycetes
D. Fungi imperfecti