Murthy, K.V.S. and Sahrawat, K.L. and Pardhasaradhi, G. (2000) Plant nutrient contribution by rainfall in the highly industrialized and polluted Patancheru area in Andhra Pradesh. Journal of the Indian Sociely of Soii Science, 48 (4). pp. 803-808.
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Abstract
Rainwater contains nutrients and can, in a low-input situation, constitute an important nutrient source for crop production. During 1981-90, rainwater was collected using standardized collection procedures at tbree different locations at ICRISAT, Patancheru, Andhra Pradesh. Samples were analysed for N, P, K, S, Ca, Mg and Na. Ion concentrations were low and varied from year to year. The mean pH was 7.05. Because the locations were close to each other, there was no significant. variation in tbe composition of rainwater among tbe locations. There were negative correlations between the amount of rainfall and the chemical parameters. Phosphorus was positively correlated witb N, K, S, Ca, Mg and Na. Patancheru is highly industrialized and its atmosphere will have a bearing on the composition of rainwater. Sulphur fertilizer response experiments should not be carried out at tbis location. On an average, rainfall at this location contributes, per hectare, 5.8 kg N, 0.4 kg P, 4.8 kg S, 1.7 kg Ca, 1.7 kg Mg and 10.5 kg Na. The increase in N, P and S contribution was higher during 1986-90 than in 1981-85.
| Item Type: | Article |
|---|---|
| Author Affiliation: | International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Andhra Pradesh, India |
| Subjects: | Soil Science and Microbiology > Soil Sciences Plant Physiology and Biochemistry > Biochemistry |
| Divisions: | Other Crops |
| Depositing User: | Sandhya Gir |
| Date Deposited: | 16 Jan 2011 21:05 |
| Last Modified: | 16 Jan 2011 21:05 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/1380 |
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