A. Macro pores
B. Meso pores & Micro pores
C. Both A & B
D. The above statement is wrong
A. 12
B. 13
C. 14
D. 09
A. Sand
B. Silt
C. Clay
D. None of the above
A. Reconnaissance survey
B. Detailed soil survey
C. Soel survay
D. The answer of statement is not in options
A. Alfisols
B. Ultisols
C. Vertisols
D. None of the above
A. Andisols, Gelisols, Histosols, Spodosols, Oxisols, Ultisols
B. Entisols, Inceptisols, Aridisols, Alfisols, Mollisols, Vertisols
C. Andisols, Aridisols, Histosols, Vertisols, Regosols, Libosols
D. The above statement is wrong
A. Nitrogen
B. Potassium
C. Aluminium
D. Calcium
A. Sub-surface drainage
B. Surface operations
C. Drainage
D. All of the above
A. Green manure increases the availability in organic from to the next crop
B. It does not affect the availability of phosphorous to succeeding crop
C. Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter
D. It fixes the P2O5 through humus and reduces the availability..
A. Water quality determination
B. Aquifer location
C. Water regulation
D. Installation of wells