Salam, Abdul Kadir and Suyatno, Saja and Handoko, Saja and Wiharso, Didin and Harahap, J. Tagor (2000) Chemical Availabilities of Phosphorus, Manganese and Iron in Limin LC Treated Tropical Soils. Journal of Tropical Soils, 5 (1). pp. 137-145. ISSN 0852-257X

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Abstract

Several industrial wastes show appreciable amounts of essential element but their uses in agriculture are sometimes restricted by their heavy metal contents. This research was to evaluate the availabilities of P, Mn, and Fe in four tropical soils (two of them showed higher CEC values than the others) treated with a thoroughly mixed calcite, cassava-leaf compost, and industrial waste high in Cu and Zn called Limin LC as a fertilizer formulated to lower heavy metal availabilities but increase macronutrient availabilities in soils. After a four week incubation at 40% moisture content and room temperature, available P (Bray extractable) consistently decreased with increasing levels of Limin LC formulations containing no cassava-leaf compost. The presence of increasing amount of cassava-leaf compost in Limin LC formulations enhanced the available P, particularly in low CEC soils, higher than those in the control units. The related decreases in available Mn and Fe (DTPA extractable) suggest that the decrease in available P was partly due to the formation of Fe-P and Mn-P precipitates, that probably occurred at elevated pH caused by lime and/or waste components of Limin LC.

Item Type: Article
Uncontrolled Keywords: Industrial Wastes, Iron, Limin LC, Manganese, Phosphorus, Tropical Soils
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User: Abdul Kadir Salam
Date Deposited: 26 Apr 2018 04:01
Last Modified: 26 Apr 2018 04:01
URI: http://repository.lppm.unila.ac.id/id/eprint/6425

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