agronomy agricultural physics agricultural meteorology soil science
agronomy agricultural physics agricultural meteorology soil science
agronomy agricultural physics agricultural meteorology soil science
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cal relationships; Surface chemistry and nutrient dynamics; Chemical and electrochemical<br />
properties of submerged <strong>soil</strong>s; Chemistry of acid and salt affected <strong>soil</strong>s and<br />
their reclamation.<br />
Practical<br />
Analysis of equilibrium <strong>soil</strong> solution for Eh, pH, EC and partial pressure of COr<br />
Determination of ion activity. Common ion effects on solubility. Exchange reactions<br />
of Na, K, Ca, Mg in <strong>soil</strong>s. Characterization of acid and salt affected <strong>soil</strong>s. Lime and<br />
gypsum requirement.<br />
Suggested Readings<br />
Bear, RE. 1964. Chemistry of Soil. Oxford and IBH Pub. Co., New Delhi, pp.515.<br />
Fried, M. and Broeshart, H. 1967. Soil Plant System, Academic Press, New York,<br />
pp.358.<br />
Greenland, D.J. and Hayes, M.H.B. 1978. Chemistry of Soil Constituents. John Wiley<br />
and Sons, pp.714.<br />
Stevenson, F.J. 1982. Humus Chemistry. John Wiley, New York, pp.443.<br />
Van Olphan, H. 1977. Introduction to clay colloid chemistry. John Wiley and Sons,<br />
New York, pp.318.<br />
3. Soil biology and biochemistry (2+1)<br />
Soil biota, <strong>soil</strong> microbial ecology- types of organisms in different <strong>soil</strong>s, <strong>soil</strong> microbial<br />
biomass; Microbial interactions; Microbiology and Biochemistry of root <strong>soil</strong><br />
interface; Phyllosphere; Biofertilizers; Soil enzymes- activities and importance; Microbial<br />
transformations of nitrogen, phosphorus, sulphur, iron and manganese in the<br />
<strong>soil</strong>; Biochemical composition and biodegradation of <strong>soil</strong> organic matter and crop<br />
residues; Organic wastes and their use for production of biogas and manures; Biotic<br />
factors in <strong>soil</strong> development.<br />
Practical<br />
Determination of microbial population; Microbial biomass; Activities of different<br />
enzymes in <strong>soil</strong>; Biochemical constituents of organic residues- cellulose,<br />
hemicellulose, lignin and C:N ratio; Estimation of decomposition rates of different<br />
organic residues; Mineralization and immobilization turn-over of nitrogen.<br />
Suggested Readings<br />
Alexander, M. 1977. Introduction to Soil Microbiology. John Wiley, Ne,w York, pp.467.<br />
Surges, A. and Raw, F. 1967. Soil Biology. Academic Press, New York, pp.532.
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