Alpha Alpha 4. Nitrolene Select the correct answer from the code given below-

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1, 2 and 3. Azolla, Blue-green algae (cyanobacteria) and Alpha Alpha are used as biofertilizer. Azolla provides natural source nutrients and has tremendous potential to improve soil health and boost yield sustainability. Azolla, a free-floating widely distributed aquatic fern, offers significant potential as an N source in rice production. It can double its biomass very rapidaly. It acts as biofertilizer. They form a symbiotic relationship with the cyanobacterium, which fix atmospheric nitrogen. Sereval types of symbiotic biological nitogen fixing associations are known. The most prominent among them is the legume bacteria relationship. Species of rod shaped Rhizobium has such relationship with the roots of several legumes such as alfalfa (Alpha Alpha), Sweet clover, Sweet pea, Lentils, Garden pea, Broad bean, Clover beans, etc. The most common association on root is as nodules. Blue-green algae, also known as cyanobacteria, are a group of photosynthetic bacteria found in a wide range of water bodies. A number of cyanobacteria such as Anabaena and Nostoc are free-living nitrogen-fixers.

Alpha Alpha 4. Nitrolene Select the correct answer from the code given below-

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