Swibawa, I Gede and Fitryana, Diny and Septiani, Lisa and Suharjo, Radix and Prasetyo, Joko IMPACT OF APPLICATION FUNGICIDE AS CORN SEED TREATMENT ON SOIL NEMATODES AND ARTHROPODS ABUNDANCE. In: UNSPECIFIED. (Unpublished)

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Abstract

Seed treatment of corn with fungicide is very common to control corn downy mildew disease in Lampung. The application of fungicide may have negative side effect to the activities of soil organism, but not yet more information available. The objectives of this research were to study the effect of application of fungicide as a seed treatment of corn on soil nematodes and arthropods. The fungicide test as seed treatment with dosage of 5 g in 1kg of corn seed under plastic house experiment was conducted from January until June 2016 in Natar, South Lampung. Four corns that were planted in polybag with capacity 5 kg of soil were set as experimental unit, and they were arrange in randomize block experimental designed with 3 block as replications. The treatments of this experiment were four fungicides with different active ingredient namely fenamidone, metalaxsil, propiconazole, and dimethomorph and one check with no fungicide. Disturb soil samples for nematode extraction and undisturb soil in ring soil sampler for arthropod extraction were taken from the polybag when corn was 40 days old after planting. Nematodes were extracted by sieving and centrifugation with sugar solution methods, while arthropods were extracted by Berlese funnel extractor under one week incubation. Nematode was grouped into feeding groups and arthropod into order taxonomyc groups. The analysis of variance procedure was applied to the data of nematodes and arthropods abundance and their mean difference was test by Least Significant Difference (LSD) with 5% of significantly level. The results showed that the effect of fungicide application as a seed treatment of corn was varied. Application of metalaxil and propiconazole tend to suppress the abundance of plant parasitic nematodes, but not for the free living groups, while the other fungicides test was not significantly affected to both of plant parasitic and free living nematodes groups. All of test fungicides were significantly suppress the abundance of Acarina, but not for Collembola and others arthropods abundance. We sugested the application of fungicide as a seed treatment of corn not seriously affected of soil organism activities. ----------------------------------------------- Key words: seed treatment, corn, soil organism

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Proteksi Tanaman
Depositing User:	I GEDE SWI I Gede Swibawa
Date Deposited:	12 Oct 2017 02:00
Last Modified:	28 May 2018 03:29
URI:	http://repository.lppm.unila.ac.id/id/eprint/4033

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