Due to which of the following organism, yield of rice is increased
Anabena
Bacillus popilliae
Sesbania
Bacillus polymena
It’s obvious.
A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is
Consider the following statements about organic farming
$I.$ Organic farming promotes the use of crop rotations and cover crops and encourages balanced host/predator relationships
$II.$ Integrated pest and weed management and soil conservation systems are valuable tools on an organic farm
$III.$ Organic farming protects the environment, minimize soil degradation and erosion and decrease pollution
Which of the statements given above are correct?
The common nitrogenfixer in paddy fields is
Which one of the following is not used in organic farming?
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