Salam, Abdul Kadir and Desvia, Yessi and Subiyantoro, Riyadi and Susanto, Herry and Utomo, Muhajir (1998) Changes in the Activities of Phosphatase and -Glucosidase by Long-Term Soil Tillage Systems. Pros Seminar Nasional VI Budidaya Pertanian Olah Tanah Konservasi. pp. 417-422. ISSN 02168308

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Abstract

Activities of soil enzymes are known to be associated with soil organic matter and water contents, that are greatly affected by soil tillage systems. This research was done to evaluate the changes in the enzymatic activities in a tropical soil subjected to long-term tillage systems (intensive, minimum, and no tillages) superimposed with different levels of seasonal urea N (0, 100, and 200 kg N ha-1). Analyses showed that the activities of acid phosphatase and -glucosidase in topsoil layers (0-10 cm and 10-20 cm) were higher in the minimum and no tillage soils than those in the intensive tillage soil in relation to the differences in soil organic matter and water contents and soil pH. Addition of urea N generally decreased the activity of acid phosphatase in both soil layers, particularly by decreasing in soil pH due to urea treatment.

Item Type:	Article
Uncontrolled Keywords:	b-Glucosidase, Phosphatases, Soil Enzymes, Soil Tillage, Urea
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User:	Abdul Kadir Salam
Date Deposited:	15 Feb 2018 05:07
Last Modified:	15 Feb 2018 05:07
URI:	http://repository.lppm.unila.ac.id/id/eprint/6391

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