Paper Mill Sludge as Soil Ameliorant to Enhance Land Rehabilitation inIndonesia: Prospects and Limitation

ABSTRACT

A strategy for land rehabilitation is amelioration by improving soil organic matter (SOM) content. To provide SOM required in recovering land of millions hectares in Indonesia, paper mills sludge (PMS) can be a possible source. As a ninth largest world pulp and paper exporter, Indonesia, produce PMS more than one million ton/year. This paper reviewed the utilization of both PMS and it compost to ameliorate soil fertility. The result showed that PMS in 25% dosage (v/v) improved Corg, N, P and K of ex-coal mining soil; 280%, 3,150%, 4,534% and 395%, respectively, 15 days after incubation. Application of PMS on peat soil, on the other hand, was the best in developing P availability both in 25% dosage (528%) and 50% (628%) 10 days of incubation, compared to the control. Whereas, composted PMS in 50% dosage improved N by
453%, P by 558% and K by 666 % better than the control. In addition, when it was applied in
25% dosage, it increased N, P, K availability by 440%, 372% and 381%, respectively, compared to the control. In short, PMS can be further developed as a soil ameliorant to enhance land rehabilitation.


Keywords: ameliorant, land rehabilitation, paper mills sludge

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Informasi Detil

Judul Seri

Prosiding INAFOR (International Conference of Indonesia Forestry Reseacher) 2011

No. Panggil

//

Penerbit

: ., 2012

Deskripsi Fisik

3-8

Bahasa

English

ISBN/ISSN

978-979-8452-45-1

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