Sri, Yusnaini and Niswati, Ainin and Arif, Mas Achmad Syamsul and Yeti, Komalasari and Kaneko, Nobuhiro EARTHWORM POPULATION UNDER DIFFERENT SOIL TILLAGE AND HERBICIDE APPLICATION AT INTEGRATED FIELD LABORATORY AGRICULTURE FACULTY, UNIVERSITY OF LAMPUNG. In: International Conference on Organic Agriculture in the Tropics: State-of-the-Art, Challenges and Opportunities, 20-24 Agustus 2017, Universitas Gajah Mada, Yogyakarta. (Submitted)

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Abstract

EARTHWORM POPULATION UNDER DIFFERENT SOIL TILLAGE AND HERBICIDE APPLICATION AT INTEGRATED FIELD LABORATORY AGRICULTURE FACULTY, UNIVERSITY OF LAMPUNG S. Yusnaini1, A. Niswati1, M.A. SyamsulArif1, Y. Komalasari1, N. Kaneko 2 1Faculty of Agriculture, University of Lampung, Jl. Prof. SumantriBrojonegoro No.1 Bandar Lampung 35145, Lampung, Indonesia. e-mail: sri.yusnaini@fp.unila.ac.id 2 Soil Ecology Research Group, Graduate School of Environment and Information Sciences, YNU , 79-7 Toki wadai,Yokohama 240-8501, Japan. e-mail: kanekono@ynu.ac.jp ABSTRACT Earthworm is a soil macro fauna that presence in the soil is very important for decomposed organic matter, improved soil physics as soil engineer and increase the soil fertility by earthworm cast production. Usually, land preparation for cultivation is done by intensive tillage and weeds are controlled by using chemical herbicides for effective, time, labor and cost. Based on this condition, its necessary to study the effect of soil tillage and chemical herbicide application on the existence of earthworm in cassava cultivation. This study were aimed to determine the effect of soil tillage and herbicide application on earthworms population in cassava cultivation. The experiment was designed by using completely randomize block design (RCBD) with two factors, i.e. ; soil tillage systems consists of full tillage (T1) and minimum tillage (T0) and herbicide application (H) consists of herbicide (H1) and non herbicide (H0). The Herbicides with isopropylamine glyphosate + 2.4D active ingredient was application as treatment at level dosage 160 mL per tank ( 16 L of water). Soil sampling by using monolith and earthworm were collect by hand sorting methods. The data were analyzed by ANOVA and LSD test. The results showed that the soil tillage has no effect on the population and biomass of earthworms, but application of herbicide affected on earthworm population at 1 day after herbicide application. Earthworm population were higher in plot with no herbicide application (86 ind m-2) than that plot with herbicide application (33 ind. m-2). However, at all combination treatment, earthworm population were increase followed by cassava growth. Population and biomass of earthworms found to be higher in the soil layer 0-10 cm than that 10-20 cm and 20-30 cm soil layers. Furthermore, soil water content had correlation with earthworm population. Keywords: Cassava, earthworm, herbicide, and tillage.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Agroteknolgi
Depositing User:	Prof. Dr. Sri Yusnaini
Date Deposited:	14 Nov 2017 02:29
Last Modified:	14 Nov 2017 02:29
URI:	http://repository.lppm.unila.ac.id/id/eprint/4741

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