Forms of iron and manganese and their availability in the salt-affected soils of the Guhiya catchment of the Upper Luni Basin of Rajasthan.
1988
Joshi D.C. | Singh N. | Kolarkar A.S.
There were few differences in HCl-soluble and free-Fe content in highly saline to normal soils in soils from Upper Luni Basin of Rajasthan. Exchangeable Fe ranged between 2-8 ppm and 2-10 ppm in salt-affected and normal soils. DTPA-soluble Fe showed wide variation both in saline soils (2.6-16 ppm) and normal soils (5.2-12.2 ppm). HCl-soluble and free-Mn in different horizons of the salt-affected and normal soils varied widely between 128-460 ppm and 12.5-218 ppm respectively. Reducible Mn content was also highly variable in salt-affected soils (4.9-149.8 ppm) and normal soils (14.9-124.9 ppm). The texture of the soil determined the amount of exchangeable and DTPA-soluble Mn found in normal and saline soils.
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