No, it is not a nitrogen fixer.
The nodules contain bacteria which can convert atmospheric nitrogen into ammonia
assimilation
These bacteria, through the plant, receive elemental nitrogen from the air, and use it to produce ammonia (NH3). This process is called nitrogen fixation. The ammonia can then be converted in to oxides of nitrogen and nitrogen salts, such as nitrites and nitrates, which are used by the host plant and others as nutrients.
The greenhouse effect is the name for runaway plant growth because if nitrogen fixation.
Plants need nitrogen to build proteins and nucleic acids.
in the following page: http://www.gardenguides.com/plants/plant.asp?symbol=CASP8 we can see "Nitrogen Fixation: Low". with a low ratio of fixation, Catalpa is not considered a Nitrogen Fixing plant.
Its a biological nitrogen fixer.
No. Plants that belong to the family Leguminosae (legumes) are nitrogen fixers. Peas and beans are examples.
clove
Clove oil is an essential oil from the clove plant. It is a natural antiseptic used primary in dentistry. It can be purchased in the pharmacy as a home remedy.
Toothache pain is abated with clove oil.
The "clove" used as a spice (in pickling, etc.) is the dried flower bud of a tropical tree.
One of the products made out of clove trees is clove oil for pest control. Other products made of this plant are Kretek cigarettes, and acid washer vats.
because the nitrogen helps the plant grow
People put nitrogen in fertilizers because nitrogen in the form of ammonium nitrogen is essential for a plant's growth.
The nitrogen goes into the nodules of the plant.
roots