agronomy agricultural physics agricultural meteorology soil science

mates. Agroclimatic indices, agroclimatic zones; different agroecological zones for
India. Climatology of India: Monsoons, length of day, temperature, rainfall and its
variability, atmospheric and soil drought. Arid and semi-arid regions. Frequencies of
disastrous weather events in the different regions, Climatological factors and their
effect on crop growth and yield. Climatic change and its causes, global warming,
Bioclimatology: Heat balance of animals, body temperature, inputs.
Suggested Readings
Haurwitz, B. and Austin, J.M. 1944. Climatology. McGraw Hill, Inc., New York,
pp.410.
ICRISAT Climatic classification - A consultants meeting. 1980. ICRISAT-
Hyderabad, India, p. 153.
Lai, D.S., 1989. Climatology. Chaitanya Publishing Home, Allahabad, p.420.
Petterson, S., 1958. Introduction to meteorology. McGraw Hill. Inc. New York,
pp.327.
Trewartha, Glenn T. 1954. An Introduction of Climate. McGraw Hill, New York,
pp.395.
3. Micrometeorology (2+1)
Properties of atmosphere near the earth's surface. Molecular and eddy transport of
heat, water vapour and momentum, frictional effects, eddy diffusion, mixing. Temperature
instability, air pollution. Microclimate near the bare ground, unstable and
inversion layers, variations in microclimate under irrigated and rainfed conditions,
soil moisture and temperature variation with depth. Micrometeorology of plant canopies:
Distribution of temperature, humidity, vapour pressure, wind and carbon dioxide.
Modification of microclimate due to cultural practices, intercropping. Radiation
distribution and utilization by plant communities—leaf temperature and its biological
effects. Heat transfer near and within the ground. Influence of topography on
microclimate. Shelter belts and wind breaks, micro climate in low plant area of meadows
and grain fields, microclimate within forests, glass house and plastic house climates.
Instruments and measuring techniques in micrometeorology. Effects of ambient
weather conditions on growth, development and yield of crops. Crop-weather
relations, statistical regression equations and crop growth models.
Practical
Measurement of global radiation and diffuse radiation; Measurement of albedo over
natural surfaces and cropped surfaces; Net radiation measurement at different levels;
PAR distribution in plant canopoes and interception; Wind, temperature and humidity
profiles in (a)short crops and (b) tall crops; Energy balance over crops and LAI
and biomass estimation.