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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/10005

Title: Status and Avilability of Fe and Mn in Some Soils of Saudi Arabia.
Authors: A. S. Mashhady
A. I. Metwally
Issue Date: 1979
Abstract: The investigated soils were generally low in total Fe (1.02-3.57% Fe203),total Mn(100-36Oppm Mn), and available Fe and Mn estimated by different chemical extractants. Fe extracted by different extractants showed different patterns. Only DTPA extracted Fe gave significant correlation with Fe uptake (r=0.816) and Fe concentration in barely (r=0.58). Only DTPA and EDTA extracted Mn was significantly correlated with Mn uptake (r=0.818 and 0.639 respectively). Soils that responded to FeSO4 (10ppm Fe) either had less than 2 ppm DTPA extractable Fe or had relatively high content of available Mn. Only soil application of Fe EDTA significantly increased dry matter, Fe uptake, and Fe concentration in barely. Soil application of MnSO4 (10 ppm Mn appreciably increased dry matter, Mn uptake and Mn concentration in barely in most soils. MnSO4 (19 ppm Mn) was superior to MnSO4 (5 ppm Mn) + 2% O.M and Mn EDTA (5 ppm Mn ) treatments in this respect.
URI: http://hdl.handle.net/123456789/10005
Appears in Collections:College of Foods And Agricultural Science

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