Kinata, Andreani and Dwinardi , Apriyanto and Nadrawati, Nadrawati (2013) KEMELIMPAHAN NEMATODA PATOGEN SERANGGA (NPS) PADA LAHAN PERTANIAN SEMI ORGANIK DAN KONVENSIONAL, DAN EFEKTIFITASNYA DALAM MEMBUNUH LARVA Spodoptera litura F. Masters thesis, Fakultas Pertanian, UNIB.
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Abstract
Insect pathogenic nematodes (NPS) is a group of soil fauna that can be used for management of crop pests in agricultural ecosystems that are environmentally friendly. NPS is widespread in the world and lived in many terrestrial ecosystems. Management system for agricultural crops and environmental differences edafik alleged influence on the existence and life of NPS in the field. Unclear what factors cause such a difference, but the effect of pesticides and / or fertilizers may reduce the abundance of NPS in agricultural ecosystems are managed conventionally managed agricultural ecosystems semiorganik may be able to provide environmental conditions that do not hit, even a combination of organic fertilizer and inorganic food availability may lead to more optimal NPS. The purpose of this research to study the effects of agricultural land management systems in conventional and organic semi against NPS abundance, and to study the effectiveness of NPS in killing insect pests Spodoptera litura, NPS from agricultural ecosystems with conventional management systems and semi-organic. The results showed that agricultural land managed organically semi NPS has a higher abundance compared with farms managed conventionally. Semi-organic farmland has an a verage abundance of NPS 2 times higher than that of conventional land JI 43.66 g-1 , whereas abundance of land NPS conventional JI 15.33 g-1. In testing the effectiveness of Steinernema obtained from semi-organic farms and conventional equally effective in shutting down the test insect Spodoptera litura but tend to be more effective coming from semi-organic land. Therefore, the use of external inputs such as fertilizers and high-energy chemical insecticides should be reduced.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Postgraduate Program > Magister Pengelolaan Sumberdaya Alam & Lingkungan |
| Depositing User: | 011 Syahrul Lubis |
| Date Deposited: | 05 Feb 2014 15:31 |
| Last Modified: | 10 Feb 2014 01:05 |
| URI: | http://repository.unib.ac.id/id/eprint/6426 |
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