Dr. R. SivasamyProfessor and Head

Remote Sensing and Geographic Information System Department,

Tamil Nadu Agricultural University, India

siva_tnau@yahoo.comrsgis@tnau.ac.in

CoverageIntroduction of RS & GIS in Research and

CurriculumAgro-meteorological AdvisoryAgri-tech PortalMarket IntelligenceRS & GIS Applications in Agriculture

Soil resource InventoryLand Degradation Mapping & Soil Erosion ModelingSpectral LibraryPrecision FarmingSoil Information SystemCrop Planner

Introduction of RS & GISRS Applications in Agriculture – a Unit in SS&AC

Dept. started in 1989Soil Scientists trained in National and

International InstitutionsUsed visual products for mapping Soil ResourcesDelineated gypsum mined areas, water logged

areasModeled soil erosion by waterCarried out varietal discrimination, biomass and

yield estimation in field crops Generated DTM of micro-watershed

Introduction of RS & GISDepartment of RS & GIS from April 2010Multi-disciplinary team of scientistsOffers RS & GIS Courses for UG & PG

ProgrammesGenerates Soil Resource DatabaseRI-SAT Data Application in Soil Moisture

Monitoring HRD-Training on RS & GIS Applications in

Agri.Research on Drought Monitoring using MODIS

dataHyperspectral StudiesStarted PG Program in M.Tech.(Ag.) in Geo-

informatics in 2013

Agro-meteorological AdvisoryAgro-Climatic Research Centre makes

Medium Range Weather ForecastsOffers Farm Advisory on Agricultural

OperationsConducts Climate Change related studies on

Crop Growth using Crop Growth Models and Open Top Growth Chambers

Established AWSs in all Block and collects hourly data on weather parameters and use in downsizing weather forecasts

Agri-tech PortalAn Agritech portal with five lakh and more pages is

built and maintained by eExtension UnitReceived ‘Best e-Governance Award’ for the year

2011-12The portal provides technologies for crop production,

animal husbandryHosts success stories of farmers and farmers’

innovationsInformation on Government schemes, credit facilities

and special technologies for entrepreneurs The portal is updated on daily basis and visited by

thousands of farmers, technologists, administrators and extension personnel every day

The e-Extension Centre has multiple video conferencing facility and connects to all the TNAU College campuses, Agricultural Development Centres

Market IntelligenceDomestic and Export Market Intelligence Cell

offers advisory services on marketingRegistered farmers receive prevailing prices

in different local and export markets for the produces/products of their interest

Forecasts price for agricultural produce and value added products

Collects Cost of Cultivation of Principle CropsMaintains a database on price of agricultural

commodities from the leading markets of Tamil Nadu and neighbouring States

RS & GIS Applications in AgricultureSOIL RESOURCE INVENTORYVisual interpretation of FCC from TM & LISS and

PAN sharpened LISS3 dataDigital classification of LISS3 data and integration

of Physiography, Results of Terrain Analysis of DEMSelection of sample strips and profile examination

and laboratory analysisDigital Soil Database for Tamil Nadu in NRIS of

ISROLand Evaluation and Management Options and Crop

Selection

RS & GIS Applications in Agriculture

LAND DEGRADATION MAPPING Digital classification ofMulti-temporal LISS3 data

for 2005-2006Integration of Land Use Land Cover maps and

results from Terrain analysisMapping Land Degradation Process and DegreeSelection of sample strips and profile

examination and laboratory analysisManagement Options and Conservation MeasuresLand Degradation Map of Tamil Nadu in NRIS

RS & GIS Applications in AgricultureSPECTRAL LIBRARYSpectro-radiometer in 350 t0 1050 nm range

is used Crops and Varieties under different Nutrient

Management and Crop GeometryCrop Damage by Pests and DiseasesSoil Degradation due to erosion and

pollutantsSoil Mineralogical studies

Towards Precision FarmingSpatial Variability Analysis

Spatial Variability and Management ZoningField Field No.No.

N N kg/hakg/ha

SDSD

FarmFarm 120120 11.511.5

11 132.5132.5 3.83.8

22 134.5134.5 2.52.5

33 114.2114.2 9.39.3

44 107.8107.8 4.84.8

55 113.6113.6 8.18.1

66 113.1113.1 6.36.3

77 127.9127.9 4.04.0

Soil Information System

Crop Planner for Cauvery Delta

Farm Level Management System

Thank you very much