Basic compost properties as affected by variation in raw materials and rates of ash

Date

4-1979

Degree

Bachelor of Science in Agriculture

Major Course

Major in Horticulture

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Maria Malixi M. Paje

Abstract

Three composting materials (rice straw, Lawn trimmings and ipil-ipil) and four levels of ash (0, 20, 40 sad 60 kg ash/1000 kg raw materials) were studied in a split plot design to determine their effects on the temperature, the highest being recorded from ipil-ipil files and the lowest from lawn trimmings. The peak of the composting process took place during the second week as indicated by the highest temperature recorded at that time.

Highly significant interaction between the raw material and the rate of each used was observed with regards to the changes in the file of the compost piles. This suggests that absolute pile values may not serve as a good guide in determining the extent of decomposition a raw material gas undergone.

Based on the quality rating, the raw material used had a light significant effect on the rate of decomposition of the compost piles. Ipil-ipil attained full decomposition on the eight week followed by the rice straw on the tenth week. Lawn trimmings were still half decomposed after twelve weeks. All levels of ash had no effect on the quality rating of the compost piles despite significant increases in pH with increasing amounts of ash added to the compost piles. This supports the above conclusion.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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