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Composting of pineapple residues using chemical pre-treatment and various commercial activators / by Gina Grace M. Dimapilis.

By:

Dimapilis, Gina Grace M [author]

Contributor(s):

Guinto, Danilo F [adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : 2005. Cavite State University- Main Campus,Description: xv, 64 pages : 28 cm. illustrations ; Content type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

634.774 D59 2005

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

College of Agriculture, Food, Environment and Natural Resources (CAFENR)

Abstract: DIMAPILIS, GINA GRACE M. Composting of Pineapple Residues Using Chemical Pre-treatment and Various Activators. Bachelor of Science in Environmental Science, Cavite State University, Indang, Cavite. April 2005. Adviser: Dr. Danilo F. Guinto A laboratory composting experiment involving pineapple residues regarded by farmers as difficult to decompose was conducted for eight weeks to asses the effects of chemical pre-treatment with sodium hydroxide (soaking pineapple residues in 0.1 M NaOH for five days and ten days before composting) and application of various commercial activators namely: Happy Soil, Effective Microorganisms, Ecozyme and Microzyme on the rate of decomposition. Specifically, the study aimed to: test sodium hydroxide as chemical pre-treatment; measure the different compost decomposition parameters such as weight loss, moisture content and temperature; measure the nitrogen release/mineralization rates of the decomposing residues; and recommend appropriate compost activators that can hasten the decomposition process. The results showed that pre-soaking pineapple residues for ten days significantly hastened the decomposition of compost materials (pineapple residues and chicken manure) compared with pre-soaking for five days. All activators significantly hastened the decomposition of compost materials compared with the control. Microzyme, Ecozyme and Effective Microorganisms were equally effective in enhancing decomposition relative to Happy Soil. The five days and ten days pre-soaking pineapple residues in NaOH released mineral nitrogen (NH4-N) was within one week after composting. While the mineral nitrogen (NO3-N) and (NH4-N and NO3-N) released was within one week after composting in the ten days pre-soaking while it was within two weeks after composting in the five days pre-soaking. Treatment with activators resulted in release of mineral N which peaked within one to two weeks after composting.

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Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	634.774 D59 2005 (Browse shelf(Opens below))		Link to resource	Room use only	T-3166		00017522

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Previous	634.774 D56 1997 Supply analysis of pineapple in the Philippines /	634.774 D56 1997 Suppy analysis of pineapple in the Philippines /	634.774 D59 2005 Composting of pineapple residues using chemical pre-treatment and various commercial activators /	634.774 D59 2005 Composting of pineapple residues using chemical pre-treatment and various commercial activators /	634.774 D71 2019 Resource productivity estimates of pineapple farms in upland Cavite /	634.774 Em3 1987 Economic analysis of pineapple production as first crop and ratoon crop in Silang, Cavite /	634.774 F41 1982 Pineapple growing in Limbon /	Next

Thesis (BS Environmental Science) Cavite State University

Includes bibliographical references.

College of Agriculture, Food, Environment and Natural Resources (CAFENR)

DIMAPILIS, GINA GRACE M. Composting of Pineapple Residues Using Chemical Pre-treatment and Various Activators. Bachelor of Science in Environmental Science, Cavite State University, Indang, Cavite. April 2005. Adviser: Dr. Danilo F. Guinto

A laboratory composting experiment involving pineapple residues regarded by farmers as difficult to decompose was conducted for eight weeks to asses the effects of chemical pre-treatment with sodium hydroxide (soaking pineapple residues in 0.1 M NaOH for five days and ten days before composting) and application of various commercial activators namely: Happy Soil, Effective Microorganisms, Ecozyme and Microzyme on the rate of decomposition. Specifically, the study aimed to: test sodium hydroxide as chemical pre-treatment; measure the different compost decomposition parameters such as weight loss, moisture content and temperature; measure the nitrogen release/mineralization rates of the decomposing residues; and recommend appropriate compost activators that can hasten the decomposition process.

The results showed that pre-soaking pineapple residues for ten days significantly hastened the decomposition of compost materials (pineapple residues and chicken manure) compared with pre-soaking for five days. All activators significantly hastened the decomposition of compost materials compared with the control. Microzyme, Ecozyme and Effective Microorganisms were equally effective in enhancing decomposition relative to Happy Soil. The five days and ten days pre-soaking pineapple residues in NaOH released mineral nitrogen (NH4-N) was within one week after composting. While the mineral nitrogen (NO3-N) and (NH4-N and NO3-N) released was within one week after composting in the ten days pre-soaking while it was within two weeks after composting in the five days pre-soaking. Treatment with activators resulted in release of mineral N which peaked within one to two weeks after composting.

Submitted copy to the University Library. 05/23/2005 T-3166