Salam, Abdul Kadir and Bahri, Herry Syaiful and Yusnaini, Sri and Kimura, Makoto (1999) Soil Enzymatic Activities in Young Cassava Plant Rooting Zones in Lampung, South Sumatra, Indonesia. International Seminar Towards Sustainable Agriculture in Humid Tropics Facing 21st Century. pp. 73-79. ISSN 979-8287-24-X

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Abstract

Activities of soil enzymes in rooting zones of young cassava plants were evaluated in a cassava plantation in Gunung Batin area, Lampung, Indonesia. Soil samples were collected in triplicates at distances of 0, 10, 20, and 30 cm from the cassava plants main stems 2 to 5.5 months after planting. The activity of acid phosphatase in general decreased with the age of cassava plants until 4.5 months while that of alkaline phosphatase showed no significant changes, and as that of acid phosphatase, alkaline phosphatase activity significantly increased at 5.5 month observation. The activity of -glucosidase and arylsulfatase at 2 or 2.5 month observations generally lower than those at later observations. Distances from the main stems showed no effect on the activities of acid and alkaline phosphatases. However, the activity of -glucosidase at 3.5-5.5 month observations decreased and that of arylsulfatase slightly increased with distances from the cassava plants main stems.

Item Type:	Article
Uncontrolled Keywords:	Arylsulfatase, -Glucosidase, Cassava, Phosphatases, Soil Enzymes
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User:	Abdul Kadir Salam
Date Deposited:	26 Apr 2018 03:59
Last Modified:	26 Apr 2018 03:59
URI:	http://repository.lppm.unila.ac.id/id/eprint/6468

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