The effect of Nitrate on Nodulated Soybeans

The Effect of Nitrate on Nodulated Soybeans

Soybean (Glycine max ) is an exotic leguminous species in Eastern Asia These annual plant may grow not higher than 20 cm (7 .8 inches ) and can even stiffly erect up to 2 meters (6 .5 feet ) in height . Brown or gray pubescence is present in the pods , stems and even in the leaves Leaves are trifoliate in character that varies in number of leaflets With 6-15 cm long and 2-7 cm broad of leaflets sometimes 5 leaflets in one stem . The flower found axile in the [banner_entry_middle]

stem and seeds matured before it falls . Fruits are the hairy pod that grows in cluster into the stem . Soybeans contain high amount of complete proteins and fats , thus remain important source of proteins to people in the Far East and Southeast Asia , and to the rest of the world . A complete protein source contains essential amount of amino acids which the human body needs Leguminous species contains Rhizobium bacteria like soybeans in their roots that convert gaseous nitrogen to nitrogenous compounds . Since nitrogen is abundant to the atmosphere only specialized species (leguminous plant ) can break nitrogen . And this is the reasons why leguminous species becomes unique and different to there organisms . In addition , they are symbiotic in relationship with plants and other beneficial organisms in nature

Bacterium (Bradyrhizobium japonicum ) is a gram negative , rod-shaped nitrogen-fixing bacterium which develops a symbiosis with the soybean plant the Glycine max . This bacterium belongs to the family of Rhizobiaceae which includes other nitrogen-fixing bacteria that develops symbiosis with the legumes (Wikipedia , 2006 . They live in symbiotic relationship with the legumes . Once they encounter a root of legume they enter the root hairs and travel down a tube to the center of the root hair cell . This species are slower-growing , alkaline producing bacteria which is associated with soybeans . Later on , we will tackle the symbiotic relationship that is present between the soybean and the Bradyrhizobium japonicum

Biologically , lighting gives way for nitrogen fixation to produced ammonia but only small amount can be produced . And lighting is natural method of nature to break nitrogen that present and abundant in the atmosphere . Industrially , the process of Haber-Bosch produced ammonia which uses iron-based catalyst , high pressure , and relatively amount of temperature . Dinitrogen fixation is a process of nitrogen fixation using microorganisms in conversion of nitrogen to ammonia . Nowadays , it is a source of major conversion of nitrogen into ammonia . The arid environment conditions deprived the nitrogen fixation . In arid regions the major source of nitrogen input in agricultural soil is thru the process of biologic nitrogen fixation . Nitrogen has taken from its relatively inert molecular form which is present in the atmosphere , thus converting into nitrogen compounds that are useful for other chemical processes needed in plants (H . Zahran , 1999

N2 8H 8e- 16 ATP 2NH3 H2 16ADP 16 Pi represents the biological equation of nitrogen fixation . From this equation , two moles of ammonia are produced from one mole of nitrogen gas . Ammonia… [banner_entry_footer]