Azolla pinnata is a small, free-floating aquatic fern in the family Salviniaceae that forms dense, carpet-like mats on the surface of still or slow-moving fresh water. The plant consists of a short, branched floating stem bearing two-lobed scale-like leaves that overlap in alternating rows, and fine roots that hang into the water. Leaf colour ranges from bright green to deep rusty red under high light or cooler conditions. Individual plants measure 1.5-2.5 cm across. Azolla is remarkable for its symbiotic relationship with the nitrogen-fixing cyanobacterium Anabaena azollae (Nostoc azollae), which lives in cavities in the dorsal leaf lobes and converts atmospheric nitrogen into plant-available ammonia. Under optimal conditions (20-28C, pH 5.5-7, partial shade), biomass doubles in as little as 2-5 days. Azolla is cultivated globally as a biofertilizer in rice paddy systems (fixing 40-60 kg N/ha/season), as a high-protein livestock and fish feed supplement (25-30% crude protein dry we...

Optimal growing conditions including temperature, humidity, light intensity (DLI), photoperiod for controlled environments.

Hydroponic system compatibility analysis for DWC, NFT, drip, ebb & flow, Kratky, aeroponics, including soil and soilless growing media options.

Troubleshooting guide covering 9 common issues including Iron Deficiency (Phosphorus-Induced Chlorosis), Heat Stress and Frond Scorching, Phosphorus Deficiency and 6 more. Each with symptoms, causes, solutions, and prevention strategies.

14 research-backed growing guide sections covering temperature, humidity, light, airflow, nutrition, propagation, harvesting, calendar, environments, systemCompat, growingMedia, containerSpecs, trainingSupport, commonIssues. Backed by 20 peer-reviewed citations.

Propagation methods and techniques for Azolla.

Harvesting guide with timing and best practices.

Recommended growing media and substrate options.

Container specifications and sizing recommendations.

Plant training and support techniques.