PENGHAMBATAN OKSIDASI PIRIT OLEH PUPUK FOSFAT PADA BERBAGAI KONDISI AIR TANAH

ANGGRAINI, LIA and Marsi, Marsi and Sabaruddin, Sabaruddin (2022) PENGHAMBATAN OKSIDASI PIRIT OLEH PUPUK FOSFAT PADA BERBAGAI KONDISI AIR TANAH. Undergraduate thesis, Sriwijaya University.

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Abstract

Acid sulfate soils are characterized by high content of pyrite and low pH. Under an aerobic condition, pyrite does not present any risk. However, when it is exposed to direct contact with oxygen, it will be oxidized and produce sulfuric acid. Land amelioration is an effort to provide materials to the soil with the aim of improving physical, chemical and biological soil properties. Current research aimed to study the effect of phosphorus (P) fertilizer application and water conditions on inhibiting pyrite oxidation. The experiment was laid out in a Factorial Completely Randomized Design (CRD) with 2 factors, namely P fertilizer and groundwater conditions. The results showed that the application of P fertilizer at 1,73 g P2O5 kg-1 combined with maintaining the groundwater table at 5 cm above soil surface was able to inhibit pyrite oxidation better than any other treatments. Although soil pH did not change at the end of the experiment (4,92 to 4.93), both dissolved SO42- and Fe2+ decreasedsignificantly from 149,70 ppm to 6.62 ppm and from 57.50 ppm to 0.33 ppm, consecutively. Keywords: Pyrite Oxidation, Phosphate Fertilizer, Soil Water Condition.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Oksidasi Pirit, Pupuk Fosfat, Kondisi Air Tanah
Subjects:	S Agriculture > S Agriculture (General) > S590-599.9 Soils. Soil science. Including soil surveys, soil chemistry, soil structure, soil-plant relationships
Divisions:	05-Faculty of Agriculture > 54294-Soil Science (S1)
Depositing User:	Lia Anggraini
Date Deposited:	28 Sep 2022 06:12
Last Modified:	28 Sep 2022 06:12
URI:	http://repository.unsri.ac.id/id/eprint/80115

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