Description : Define biofertilizers? -Science
Last Answer : answer:
Description : The state which has recently overtaken Karnataka for the top rank in the production of biofertilizers is : (1) Tamil Nadu (2) Gujarat (3) Maharashtra (4) Punjab
Last Answer : (1) Tamil Nadu Explanation: Tamil Nadu overtook Karnataka. In 2009-10, Tamil Nadu produced 3733 tonnes of bio-fertilizers followed by Karnataka, 3696 tonnes. The other major producers of biofertilizers were Kerala (1937 tonnes), Maharashtra (1861 tonnes) and Madhya Pradesh (1588 tonnes).
Description : Biofertilizers convert nitrogen to (1) nitrates (2) ammonia (3) nitrogenase (4) amino acids
Last Answer : (2) ammonia Explanation: Bio-fertilizers are microorganisms which bring about nutrient enrichment of soil by enhancing the availability of nutrients to crops. The micro-organisms which act as bio ... bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.
Description : Bacillus thuringiensis (Bt) strains have been used for designing novel (a) biofertilizers (b) bio-metallurgical techniques (c) bio-mineralization processes (d) bioinsecticidal plants.
Last Answer : (d) bioinsecticidal plants.
Description : The biofertilizers are (a) Anabaena and Azolla (b) cow dung, manure and farmyard waste (c) quick growing crop ploughed under soil (d) none of these.
Last Answer : (a) Anabaena and Azolla
Description : Which of the following is the pair of biofertilizers? (a) Azolla and BGA (b) Nostoc and legume (c) Rhizobium and grasses (d) Salmonella and E.coli
Last Answer : (a) Azolla and BGA
Description : Biofertilizers are – 1) Organic manures 2) Green manure 3) Culture of micro-organism 4) None of these
Last Answer : 3) Culture of micro-organism
Description : Biofertilizers convert nitrogen to _______ . (1) nitrates (2) ammonia (3) nitrogenase (4) amino acids
Last Answer : ammonia