Azotobacter is a genus of free-living bacteria that can fix atmospheric nitrogen in the absence of a symbiotic relationship with plants. It is capable of carrying out nitrogen fixation aerobically, meaning it can fix nitrogen in the presence of oxygen.
Which soil requires frequent irrigation?
In soil plaque method of soil fertility assessment developed by Winogradsky, which micro organism is studied?
Pure forest is a type of forest in which composition of one species not less than
Sea tides show variations because of:
Yellow color of cow milk is due to
Cotyledon remains in the soil and plumule grows or is pushed upward by the elongation of epicotyl. This type of germination is called____
Agropyron repens can be grown under ____ conditions and is known as_____:
What characterizes facultative parasites, and how do they differ from obligate parasites?
Cross pollination range of gossypium hirsutum is _________ percent.
It is the tendency of some crops to absorb and accumulate nutrients far in excess of their actual needs if it is present in sufficiently large quantiti...
