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Studies on soil physico-chemical and biological properties and evaluation of nutrient index for soil fertility along rural-urban interface of southern transect of Bengaluru

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Title Studies on soil physico-chemical and biological properties and evaluation of nutrient index for soil fertility along rural-urban interface of southern transect of Bengaluru
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Creator Altaf Kuntoji, Subbarayappa, C.T, Chamegowda, T. C, Sathish, A, Ramamurthy, V and Mallesha, B.C
 
Subject Soil Physcio-chemical
biological
rural-urban interface
nutrient index
soil fertility map
 
Description Not Available
The expansion of urbanization and industrialization has an adverse effect on the physical, chemical, and
biological properties of soils with this our objective was to study the soil quality and evaluation of
nutrient index for soil properties along rural-urban interface of southern transect of Bengaluru. The
results of the analysis of variance with unequal number of observations showed that rural soils were
recorded significantly higher mean values of SOC (0.70%), N (323.01 kg/ha), P2O5 (28.98 kg/ha), K2O
(246.16 kg/ha), S (19.32 kg/ha), Zn (0.73 ppm), B (0.84 ppm) and DHA activity (14.59 µg TPF/g soil/24 h) whereas, urban soils were characterized by higher mean values of soil pH (7.93), EC (1.33 dS/m), exchangeable Ca (12.03 c mol (p+ )/kg) and Mg (7.70 c mol (p+ )/kg) and heavy metals such as Cd
(0.088 ppm), Cr (0.086 ppm), Pb (0.065 ppm) and Ni (0.056 ppm).The results of nutrient index revealed
that available nitrogen (1.61 and 1.42) and zinc (1.65 and 1.57) were belongs to low category of nutrient
index in rural and peri-urban, respectively. Urban soils were characterized by low nutrient index category
w.r.t. SOC (1.44), available N (1.25), P2O5 (1.52), K2O (1.50), S (1.56), Fe (1.50), Mn (1.40), Zn (1.25)
and B (1.42). Conclusively, rural soils were recorded higher available nutrients and microbial activity,
followed by peri-urban and lowest were recorded in urban soils, this clearly suggests that the process of
urbanization has adversely affected the soil quality along rural-urban interface.
Not Available
 
Date 2021-08-13T09:26:41Z
2021-08-13T09:26:41Z
2020-11-09
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/56299
 
Language English
 
Relation Not Available;
 
Publisher Not Available