Which disease is caused in children due to excessive use of nitrate fertilizers
Septicemia
Jaundice
Methaemoglobinaemia
Mumps
It’s obvious.
Azolla is used as a biofertiliser because it
Which of the following is free living aerobic and nonphotosynthetic nitrogen fixing bacterium
Give differences : Chemical fertilizer and Biotic fertilizer
The common nitrogenfixer in paddy fields is
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