EFFECT OF (CLAY & SILT) FRACTIONS AND CARBONATES MINERALS ON PEDOGENIC DISTRIBUTION OF  MANGANESE EXTRACTED BY  DIFFERENT METHODS

Mawlood Salih, Adel; Tahir Said Khalil, Mohammed

doi:10.33899/magrj.2013.76025

	EFFECT OF (CLAY & SILT) FRACTIONS AND CARBONATES MINERALS ON PEDOGENIC DISTRIBUTION OF MANGANESE EXTRACTED BY DIFFERENT METHODS
Mesopotamia Journal of Agriculture
Article 1, Volume 41, Issue 1, 2013, Pages 134-144 PDF (0 K)
DOI: 10.33899/magrj.2013.76025
Authors
Adel Mawlood Salih; Mohammed Tahir Said Khalil
Abstract
Eight soil profiles were chosen, representing three locations in Nineveh governorate (Al-Fadhlia, Kara-Tapa, and Al-Hamdania). The study was aimed for better understanding the effect of (caly & silt) fraction and carbonates minerals on distribution of manganese extracted by three selective dissolution methods [DTPA , Glacial acetic acid (GAc.) and DCB] . The results indicated that the DTPA extractable manganese showed a similar behavior in the pedogenic distribution with the highest concentration in surface horizons between 2.5 -5.6 mg. kg-1, but concentrations decreased with depth . However GAc. extractable manganese ranged 25.6-72.2 mg. kg-1 , while DCB extracted between 10-58 mg. kg-1. Statistical analysis showed a significant relation between (clay & silt) fraction of soil and DTPA extractable manganese in two locations (Al-Fadhlia and Al-Hamdania), while GAc and DCB extractable manganese has a significant relationship with (clay & silt) fraction in Kara-Tapa and Al-Hamdania Locations respectively. Carbonateminerals has a significant effect on distribution of extractable manganese only in Al-Hamdania area regardless of the extracting method
Keywords
pedogenic distribution; carbonates minerals; DTPA; GAC; DCB

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