Table 2: Determination of iron in surface soil.

SampleSource of the sampleAmount of iron (mg Kg−1) ± SD*

S1Groundnut cultivation soil
Akuthotapalli, Anantapur
40.98 ± 0.45
S2Cotton cultivation soil,
Singanamala, Anantapur district,
27.48 ± 0.36
S3Sweet lemon cultivation soil,
Garladinne, Anantapur distrcct
44.88 ± 0.24
S4Paddycultivation soil
Garladinne, Anantapur district
20.86 ± 0.37

*Average of five determinations.