Page 36 - Introduction to Agriculture by: Aqleem Abbas

Introduction to Agriculture Notes prepared by: Aqleem Abbas

Agro meteorology

Meteorology

The word meteorology is derived from lating word metro-atmosphere and logos means science. The
science of atmosphere is called meteorology.

Agro meteorology

It is a science that deals with the atmospheric condition which is significant for agriculture.

Atmosphere
A thin layer of colorless, odorless and tasteless gases hold to the surface of earth.

Percent of gases

Nitrogen =78%

Oxygen =21 %

Argon =.93 %

Carbon dioxide = .03 %

Neon = .0018 %

Helium = .005 % etc.

Weather

Condition of atmosphere at a given place in a given time. Weather is related to smaller area e.g. village,
city, district. It is also related to smaller for short time (day or part of the day), hot day, and cold day, dry
day.

Climate

Climate is the summation of weather condition over a given region or given zone related to years. From
fifty years we know Australia has cooler temperature than Pakistan.

Environment

Environment is the aggregate (total) of all external condition that influence life and development of an
organism.