Swibawa, I Gede (2010) KOMUNITAS NEMATODA TANAH PADA LAHAN JAGUNG SETELAH 25 TAHUN PENERAPAN SISTEM BUDIDAYA TANPA OLAH TANAH SECARA TERUS MENELUS. In: National Seminar on Below-ground Biodiversity-I UNIVERSITAS LAMPUNG, 29-30 Juni 2010, BANDAR LAMPUNG-INDONESIA.

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Abstract

Conservation tillage technology such as no-tillage has been introduced in Indonesia since year of 1980. The cultivation system is reported capable to conserved soil biodiversity. The research was conducted to study the effect of long-term no-tillage system on soil nematode community. Soil sample was collected on corn field after 23 years continuously treated by no-tillage combined with nitrogen cultivation system. The result show that the nematode abundance was around 300-400 individual per 300 cc of soil,the tillage system is not affected the abundance of nematode. There are 76 genera of nematode that consisted of feeding habit i.e. plant parasitic, bacterial feeders, fungal feeders, predators, omnivores, and algal feeders, are inhabited the corn field. The community of nematode is dominated by plant parasitic groups; > 75% of plant parasitic individual composed the community on no-tillage system, with corn leaf mulch, while around < 65% composed the community on conventional tillage systems. The genera of plant parasitic nematode i.e. Antarchtylus, Hemicriconemoides and Pratylenchus were more dominant than others. The tillage system affected predator nematode abundance, but did not affected to other feeding groups. No-tillage system with corn litter mulch system with predator nematode abundance of 9 ndivcidual/ 300 ml of soil was significantly higher than 2 individual per 300 ml of soil abundance on no-tillage systems with corn+green bean litters mulch. Tillage system affected diversity of nematode; Shannon diversity index 2.38 on tillage with corn mulch system was significantly higher than that index 1.79 on no-tillage with corn + green bean litters mulch system. The maturity indices for both of free-living and plant parasitic are not effected by tillage systems. Keyword. Nematode community, corn, no-tillage

Item Type:	Conference or Workshop Item (Speech)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Proteksi Tanaman
Depositing User:	I GEDE SWI I Gede Swibawa
Date Deposited:	01 Nov 2016 04:12
Last Modified:	01 Nov 2016 04:12
URI:	http://repository.lppm.unila.ac.id/id/eprint/1021

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