Page 14 - Genius Kidz Prudence Learning Sc-8

(b) Storage containers : Storage containers NITROGEN CYCLE
must be firm and appropriate to provide Nitrogen is needed for formation of proteins,
protection. For example, gunny bags or amino acids and nucleic acids, etc. It is

earthern pots can be used. especially important to plant life.
(c) Chemical treatment : Fumigation of the The cyclical process of nitrogen being fixed
store room helps to prevent undesirable used by plants and animals and later returned
insects and pest attack. to the atmosphere is referred to as the

INCREASING CROP PRODUCTION nitrogen cycle. It involves the following steps

India is one of the countries where agriculture · Nitrogen fixation

is the primary occupation. There is vast · Nitrogen assimilation
agricultural land that is capable of producing a · Ammonification

variety of crops, fruits and vegetables. But to · Nitrification

feed the ever increasing population it is · Denitrification

required to constantly increase the food grain Fixation involves conversion of free nitrogen
production. For a continuous and substantial
gas into nitrogen compounds. Assimilation
increase in the agricultural produce it is
involves conversion of inorganic nitrogen
necessary to keep certain basic things in mind.
compounds into organic compounds that
Such as:
become part of living organisms.
· Adopt latest farming techniques and use Ammonification involves conversion of

latest agricultural equipments. complex organic compounds into proteins like
· Use high quality seeds for better ammonia. The process of conversion of
productivity. ammonia into nitrates is called nitrification.

· Crops which give higher yield and are more These nitrates are acted upon by denitrifying
resistant to diseases should be cultivated. bacteria and converted to free nitrogen gas.
This is called denitrification.
· Add appropriate quantity of fertilizers to
the soil and keep replenishing the soil with ATMOSPHERIC
NITROGEN
its nutrients.
Lightning
· Apply proper methods of irrigation and fixes
nitrogen
maintain adequate quantity of moisture in
the field. Nitrogen fixing
bacteria and
blue green algae Uptake Animals Bacteria turn
· Ensure that weeding is done at regular fix atmospheric by eat compounds
nitrogen plants plants of nitrogen
intervals. into gaseous
nitrogen
NITROGEN FIXATION

Nitrogen fixation is a process by which Bacteria in turn, Nitrogenous
waste
fix nitrogen into from excretion
nitrogen (N ) of the atmosphere is converted
2 nitrogenous and death
into ammonia (NH ) so that it can be used as a compounds
3
nutrient by plants, crops and animals. Compounds of
Nitrogen in the soil

Nitrogen cycle
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