Reference
- Hesse, P. R. 1972. A Textbook of Soil Chemical Analysis. Published by Chemical Publishing Company Ltd., New York. pp. 556.
- Piper, C. S. 1942. Soil and Plant Analysis, Inter Science Publishers, Inc., New York
- Jackson, M.L. 1973. Soil Chemical Analysis. Prentice Hall of India. New Delhi. pp. 498
- http://www.epa.gov/oust/cat/mason.pdf
- http://eusoils.jrc.ec.europa.eu/soil_sampling/index.html
- http://www.sci.sdsu.edu/SERG/techniques/mfps.html
- http://www.spectrumanalytic.com/services/analysis/plantguide.pdf
- Agriculture Handbook 60. U.S. Dept. of Agriculture. Washington D.C.
- Soil Science Education Home Page - http://soil.gsfc.nasa.gov
- Soil Education - http://soils.usda.gov/education/index.html
|
Last modified: Monday, 9 April 2012, 6:50 AM