Evizal, Rusdi and Prijambada, Irfan D and Widada, Jaka and Widianto, Donny and Tohari, Tohari (2013) Diversity of legume nodulating bacteria as key variable of coffee agro-ecosystem productivity. International Research Journal of Agricultural Science and Soil Science, 3 (4). pp. 141-146. ISSN 2251-0044


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The high diversity of Legume Nodulating Bacteria (LNB) was found in soil of agro-ecosystem of legume trees that has been established for long time. Incorporating legume trees as shading in coffee agro-ecosystems would conserve LNB diversity and provide ecosystem services such as N fixation, dinamic shading, and nutrient cycling. The aim of the experiment was to determine of wether legume shaded coffee agro-ecosystems have higher LNB diversity and higher coffee productivity than those of non-legume or sun (no shade) coffee agro-ecosystem. The experiment was conducted in West Lampung District, Indonesia, through out survey and experimental plot of coffee agro-ecosystems consisted of 4-5 years old coffee plot and a quassy experiment plot of 15-16 years old coffee. Types of coffee agroecosystems to be examined were Coffea canephora with shading of legume trees of Gliricidia sepium and Erythrina sububrams, non-legume shade trees of Michelia champaca, and sun coffee (without shade tree). The results showed that coffee agro-ecosystems shaded by legume trees had higher LNB diversity than those of coffee agro-ecosystems shaded by nonlegume trees (Michelia champaca) and coffee agro-ecosystem without shade trees. Diversity of legume nodulating bacteria in the soil may indicate productivity of coffee agro-ecosystems. Keywords: LNB diversity, Legume tree, Coffee agro-ecosystem, Productivity.

Item Type: Article
Subjects: S Agriculture > SB Plant culture
Divisions: Fakultas Pertanian (FP) > Prodi Agroteknolgi
Depositing User: RUSDI EVIZ
Date Deposited: 23 Nov 2021 01:35
Last Modified: 23 Nov 2021 01:35
URI: http://repository.lppm.unila.ac.id/id/eprint/37059

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