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Nitrogen-fixing plants (Alfalfa, Amaranth, Chickpea…) — UPSC Prelims PYQ 2022Jeevan Bisht2022 / Agriculture / Geography / Major Crops / UPSC Prelims PYQsAlfalfa / Chickpea / Leguminous Plants / Nitrogen Fixation / Rhizobium
Sources that add nitrogen to soil — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Biogeochemical Cycling / Environment / UPSC Prelims PYQsNitrogen / Nitrogen Cycle / Nitrogen Fixation / Soil Fertility / Soil Microorganisms
Organisms used as biofertilisers — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Agriculture / Determinants / Geography / UPSC Prelims PYQsBiofertilizers / Cyanobacteria / Microorganisms / Nitrogen Fixation / Nostoc
UPSC Prelims PYQ 2010: Feature of blue-green algae that promotes them as bio-fertilizersPMF IAS2010 / Biotechnology / Science and Technology / UPSC Prelims PYQsAtmospheric Nitrogen / Biofertilizers / Blue-Green Algae / Cyanobacteria / Nitrogen Fixation
UPSC Prelims PYQ 2000: Biofertilizer organisms suitable for rice cropPMF IAS2000 / Agriculture / Determinants / Geography / UPSC Prelims PYQsBiofertilizers / Blue-Green Algae / Cyanobacteria / Nitrogen Fixation / Rice Cultivation
Role of Zinc in Nitrogen FixationPMF IAS CA TeamPrelimsFabaceae / Legumes / Nitrogen Fixation / Rhizobia / Zinc
Plant Nutrition – Photosynthesis | Nitrogen Cycle, FixationPMF IASBiology / General Science StaticMineral Nutrition / Nitrogen Cycle / Nitrogen Fixation / Photosynthesis / Plant Nutrition