Organic solid wastes from urban environment as iron sources for sorghum

Parsa, A.A. and Wallace, A. (1979) Organic solid wastes from urban environment as iron sources for sorghum. Plant and Soil, 53 (4). pp. 455-461.

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Sorghum which is susceptible to Fe deficiency was grown in 2 different soils in a glasshouse with 2 different organic urban wastes (sewage sludge and dog manure) to ascertain their ability to supply Fe and other trace elements to plants. One soil was calcareous with a history of Fe deficiency. Sewage sludge and dog manure at an application rate of 15 000 mu g/g to this soil effectively supplied Fe to plants. This effect was not present when the ash rather than the OM was used. FeSO4 and Fe-EDDHA likewise were not effective. Infrared spectra revealed differences in the fulvic acid for the 2 sources of solid wastes. The results imply that some sources of organic wastes may be useful in prevention or correction of Fe deficiency in calcareous soils

Item Type: Article
Author Affiliation: Department of Soil and Environmental Sciences, California University, Riverside, CA 92502, USA
Subjects: Plant Production
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 13 Dec 2012 09:25
Last Modified: 13 Dec 2012 09:25

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