Azolla imbricata
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Last Update: 2021-03-13
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Source: Internet
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Author: User
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also known as , red pontoon and so on. Fern door, Manjiang Red Department. Common small aquatic ferns. Spore body floating surface, root-like stems, feather-like branches, raw beard-shaped indeterm roots. Leaf small shape, no handle, mutual birth, clad arrangement, pear-shaped, oblique or egg-shaped, about
1
mm long, full edge, and often split into the upper and lower two pieces, on the piece of meat, green, membrane edge, below there is a symbone cavity, including fishy algae symbone, the algae with alien cells, can fix nitrogen. The lower leaf is usually single-layered, colorless or contains only a small amount of chloroerin and sinks into the water. The green leaves above turn red after autumn. Large, small spores are born on the sinking
1
of each side branch. Large spores are small, long egg-shaped, with
1
large spore sacs and
1large spores; Widely found in ponds or rice fields in the provinces south of the Yangtze River. Can be used as feed. Due to the symbiotic nitrogen-fixing cyanobacteria, nitrogen
compounds
can be increased in water bodies, and rice paddies can increase rice yields or be used as green manure. Can also be medicinal, can sweat, diuretic, cure stubborn and so on.
in
1977, China introduced a kind of fine leaf Manjiang red from Japan and the United States, which has the advantages of strong cold resistance, high yield and good fertilizer efficiency, and has been extended to the Northeast region for cultivation.
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