advantages and disadvantages of using organic manure and chemical fertilizers
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Answer :
Micro-organisms are too small to be seen through naked eyes. However, they are vital to plants and the environment.→ Lactobacillus is used to form curd from milk.
→ Rhizobium present in the roots of pulse plants fix nitrogen from air and supply nitrogen compounds to the pulse plants.
→ Micro-organisms are also used in winemaking, baking, pickling, and other food making processes.
→ Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.
→ Microbes are used to reduce pollution. For example, decomposers such as bacteria and fungi break down dead bodies and excreta to form inorganic compounds, which can be absorbed by plants.
→ Microbes also play an important role in the preparation of medicines. Antibiotics are chemicals produced by micro-organisms to kill bacteria. Penicilin is an antibotic made from Penicilium.
→ Bacteria present in our intestine helps in proper digestion and release Vitmain B which is absorbed by intestine.
→ Many vaccines are prepared from micro-organisms. These vaccines are given to children to protect them from disease.
→ Certain microbes are also used in the biological treatment of sewage and industrial effluents.
→ Yeast is used in making idlis, bhaturas, bread, pastries and cakes.