Human & modern agriculture

Human & Modern Agriculture 1

Human & Modern AgricultureBy : T.Narmathan. 2012/FM/069

Human & Modern Agriculture

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Where do we get our supply of food and vegetables, fruits, flowers?

Did you know?!

Do they cultivate and maintain in good manner?


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Use of pesticide good or bad..?!


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Soybeans38%

Grains18%

Tobacco8% Fruit

18%

Vegitables11%

Other7%

Pesticide active ingredients used inSri Lanka..


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Advantages of modern Agriculture..

Irrigation technologies.

Use of synthetic fertilizers.

Genetic manipulation.

Chemical pest control.

Intensive tillage.


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Disadvantages of modern Agriculture..

The excessive use of chemical fertilizers have decreased the fertility of soil.

The money spent for agriculture have increased.

The pesticides that we use for killing pests kills the efficient insects too.

The water holding capacity of the soil will be decreased.


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Organic Farming:

It produces quality food without using any chemical fertilizer or pesticides, helps reduce diseases, and lowers the environmental impact.

What are the Alternatives..


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Hydroponics: In this method, plants are grown not in the soil but in water containing dissolved nutrients in greenhouses.



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Biological Control:

Using a predator intentionally to fix the pest population size is known as biological control. This technique demands utmost caution and thorough study, as it could go all wrong, if not managed properly.


Human & Modern Agriculture 10

Pure Agriculture..Pure Life..

HUMAN & MODERN AGRICULTURE 11

THANK YOU..

Human & modern agriculture

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