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International Journal of Zoology and Applied Biosciences Research Article

Impact of organic and conventional (chemical) fertilization on soil quality and its seasonal variation

Kamaraj Yoganathan, Punamalai Ganesh, Vairakannu Tamizhazhagan

Year : 2017 | Volume: 2 | Issue: 6 | Pages: 348-355

doi: https://doi.org/10.5281/zenodo.1312703

Received on: 11/07/2017

Revised on: 11/20/2017

Accepted on: 11/22/2017

Published on: 12/09/2017

  • Kamaraj Yoganathan, Punamalai Ganesh, Vairakannu Tamizhazhagan( 2017).

    Impact of organic and conventional (chemical) fertilization on soil quality and its seasonal variation

    . International Journal of Zoology and Applied Biosciences, 2( 6), 348-355.

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Abstract

This study was carried out to explore the seasonal variations in physico-chemical and microbiological characteristics of soil samples collected from different types of agricultural fields in confluence point of Vellar and Manimuthar river basin in Peruvarappur village, Cuddalore district, Tamilnadu. The fields were selected based on the fertilization type (Organic Fertilization [OF], Chemical Fertilization [CF]) over the past three years. Results showed that seasonally the pH is not varied in both fields, however; the seasonal average is slightly higher in CF field. The total nitrogen concentration showed a higher average in OF field (3.83±.73 g kg-1) than CF field (2.70±0.51 g kg-1). However, available K and P showed the average concentration is higher in CF field (64.35±4.04 and 77.15±2.07) than OF field (44.06±1.40 g kg-1 and 64.0±9.7 g kg-1). The higher seasonal average of Total Nitrogen (TC) and ammonium was found in OF field (29.95±2.48 and 3.63±0.29) than CF field (28.8±3.06 and 1.56±.38) Moreover, the seasonal average of Nitrate concentration was higher in CF field (24.61±2.28) than OF field (13.96±1.04). All the physico-chemical properties of both fields soil are increased every first monsoon season. Zinc and Manganese are the major metal components found in OF field (189.52±8.31 µg g-1) and CF field (197.17±11.67 µg g-1) respectively. Chemical fertilization increases the fungal population, however; it reduced the bacterial and actinomycetes population in CF field. The Non-linear incasement of analyzed soil parameters and the microbial population were observed in this study. The factors that control soil fertility are good in OF field than the CF field.

Keywords

Peruvarappur, Organic fertilization, Chemical fertilization, Heavy metal, Soil fertility.

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