🎴 Flashcard Mode
Crop Rotation and Agricultural Practices for Class V
Card1 / 36
Mastered0
Review0
QuestionClick to flip
A nitrogen fixing microbe associated with the fern Azolla in rice fields is:
AnswerClick to flip back
A
Anabaena
💡 Explanation:
Anabaena azollae, a cyanobacterium that lives in symbiotic association with the free-floating water fern Azolla. Anabaena azollae can grow Photo-autotrophically and fixes atmospheric nitrogen. The inoculation of cyanobacteria in rice crops significantly influences the growth of rice crop by secretion of ammonia in floodwater.