Nitrogen fertilizers
-
Upload
anousha-ahmed -
Category
Education
-
view
854 -
download
0
description
Transcript of Nitrogen fertilizers
Nitrogen Nitrogen fertilizersfertilizers
Nitrogen fertilizersNitrogen fertilizers• Nitrogen is necessary for strong leaf
growth and good fruit set. Nitrogen is Nitrogen is a macro element, nutrients that a macro element, nutrients that plants require large amounts of. plants require large amounts of. Nitrogen is taken up by the soil in Nitrogen is taken up by the soil in from of nitrate ions. from of nitrate ions. Nitrogen fertilizer is a compound that Nitrogen fertilizer is a compound that is added to plants or lawns to is added to plants or lawns to stimulate growth. stimulate growth.
The nitrogen The nitrogen stimulates stimulates
chloroplasts in chloroplasts in plants, which are plants, which are responsible for the responsible for the process of process of photosynthesis. photosynthesis. Plants that do not Plants that do not have have enough nitrogen will enough nitrogen will turn yellow and turn yellow and eventually perish eventually perish from a lack of food. from a lack of food.
Uses of nitrogen fertilizersUses of nitrogen fertilizers • Nitrogen fertilizers enable farmers to
achieve the high yields that drive modern agriculture. Fertilizers are effective in driving crop yield improvements . Without nitrogen, green plants are weak and smaller than they should be .
Quantity :Quantity :• If it is lacking, plants will be pale
and sickly-looking, and the oldest leaves will look worse than the newer ones. Too much nitrogen can cause plants to put all of their energy into developing greenery, and they will fail to bloom or produce fruit.
Comparison between a healthy and an unhealthy plant lacking nitrogen
A healthy plant Plant lacking nitrogen
Disadvantages Disadvantages
The extra nitrogen fertilizer supplied, leaches into the air, soil and water and pollutes lakes, rivers, aquifers and oceans. When the nitrogen fertilizers goes in the lakes, rivers, oceans many plants start growing which cause the oxygen level to decrease in water and marine life will be highly affected by this .
Dead Fishes due to excess amount of nitrogen
Questions• The lack of nitrogen leads to?• Overuse of nitrogen fertilizers?• How will extra nitrogen cause problems to
marine life?• Why is nitrogen not taken from the air?• How is nitrogen taken up by the plants and
in which form?• What do you mean by macro element?• Is nitrogen a macro element and what do
you mean by that?