Precision farming : soil fertility and productivity aspects

176 Pages·2013·2.328 MB·English

by  K R Krishna

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wwww.wapwp.alepapclaedaecamdicepmreicspsr.ecsosm.com 97891972861982965484945444 Apple Academic Press
www.appleacademicpress.com 9781926895444
Apple Academic Press
Apple Academic Press
www.appleacademicpress.com 9781926895444
PRECISION FARMING
Soil Fertility and Productivity Aspects
TThhiiss ppaaggee iinntteennttiioonnaallllyy lleefftt bbllaannkk
PRECISION FARMING
Soil Fertility and Productivity Aspects
K. R. Krishna, PhD
Apple Academic Press
TORONTO NEW JERSEY
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About the Author
K. R. Krishna, PhD
K. R. Krishna received his PhD in agriculture from the University of Agricultural Sciences in
Bangalore. He has been a cereals scientist in India and a visiting professor and research scholar
at the Soil and Water Science Department at the University of Florida, Gainesville, USA. Dr.
Krishna is a member of several professional organizations, including the International Society
for Precision Agriculture, the American Society of Agronomony, the Soil Science Society of
America, the Ecological Society of America, and the Indian Society of Agronomy.
TThhiiss ppaaggee iinntteennttiioonnaallllyy lleefftt bbllaannkk
Contents
List of Abbreviations ...........................................................................................ix
Preface ................................................................................................................xi
Acknowledgements ...........................................................................................xiii
1. Introduction .........................................................................................................1
2. Precision Farming: Methodology ......................................................................29
3. Precision Farming, Soil Nutrient Dynamics, and Crop Productivity ................75
4. Geographic and Economic Aspects of Precision Farming ..............................119
5. Precision Farming: Summary and Future Course ...........................................157
Index ........................................................................................................................161
TThhiiss ppaaggee iinntteennttiioonnaallllyy lleefftt bbllaannkk
List of Abbreviations
AE Agronomic efficiency of fertilizer-N
N
BMP Best management practice
CEC Cation exchange capacity
DGPS Differential global positioning system
EONR Economically optimum rates of N
EC Electrical conductivity
EMI Electromagnetic induction
FYM Farmyard manure
GIS Geographic information system
GPS Global positioning systems
INM Integrated nutrient management
LED Light emitting diode
NIR Near -infrared
NDVI Normalized difference vegetative index
NMR Nuclear magnetic resonance
PF Precision farming
RVI Reflectance vegetation index
SAR State agency recommendation
SSNM Site-specific nutrient management
SOC Soil organic carbon
SOM Soil organic matter
SPAD Soil plant analysis development
STCR Soil test crop response
VRT Variable rate technology
WFM Whole farm management