The indicator used for estimation of the soil available boron is_______?
A. Mixed indicator
B. Phenolpthalein
C. Diphenyle
D. Azomethine-H
Agriculture Mcqs
Source of negative charges on silicate clays is/ are________?
Source of negative charges on silicate clays is/ are________?
A. Exposed crystal edges
B. Isomorphous substitution
C. Anion exchange
D. All of these
Soil order characterized by excess of weathering with dominant iron and aluminium oxide clays, common in tropics is_________?
Soil order characterized by excess of weathering with dominant iron and aluminium oxide clays, common in tropics is_________?
A. Alfisols
B. Mollisols
C. Entisols
D. Oxisols
1 bar is equal to_________?
1 bar is equal to_________?
A. 0.9869 atm
B. Wt. Of a 1020 cm water column
C. 75.01 cm high mercury column
D. All of these
Select the water soluble phosphatic fertilizer from the following__________?
Select the water soluble phosphatic fertilizer from the following__________?
A. DSP
B. TSP
C. SSP
D. All of these
Journal ‘Plant and Soil’ is published from__________?
Journal ‘Plant and Soil’ is published from__________?
A. USA
B. Japan
C. The Neterlands
D. Pakistan
Most out standing green manure crop is__________?
Most out standing green manure crop is__________?
A. Sun hemp
B. Dhaincha
C. Both of the above
D. None of the above
Walkley and blacks method of organic matter determination allows recovery of ______ ℅ organic carbon content:
Walkley and blacks method of organic matter determination allows recovery of ______ ℅ organic carbon content:
A. 44 ℅
B. 45 ℅
C. 33℅
D. None of the above
One ha cm of water is equal to__________?
One ha cm of water is equal to__________?
A. 100 tonnes of water
B. 100000 litres of water
C. Both A & B
D. 10 tonnes of water
In cation exchange, 18 mg of Ammonium ion can be exchanged for__________?
In cation exchange, 18 mg of Ammonium ion can be exchanged for__________?
A. 40 mg of Ca
B. 46 mg of Na
C. 6 mg of Al
D. 12 mg of mg