Due to which of the following organism, yield of rice is increased
Anabena
Bacillus popilliae
Sesbania
Bacillus polymena
Give differences : Chemical fertilizer and Biotic fertilizer
Which of the following is non-symbiotic biofertilizer
A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is
Azolla possesses symbiotic association with
How are microbes useful in biofertilisers ?