Review on Interaction among Boundary Planted Eucalyptus Globules with Soil and Crop

Abstract

In recent year single rows of E. globules tree planted along field boards have become a dominant feature of central highlands of Ethiopia. Different journals showed that different extracts of E. globulus leaf had varying degrees of inhibition on germination and seedling growth of S. nigrum weed and more inhibition was seen with higher concentrations. In present study, methanol and ethyl acetate extracts had the strongest inhibitory effects. Therefore, it is possible to use these two extracts as a component for production of bio-herbicides. Eucalyptus species caused drawbacks rather than improving the performance of the undergrowth vegetation unlike the mentioned multipurpose trees. Plant secondary metabolites (PSMs) offer plants chemical defences against herbivores and are known to influence intake and diet choice in both insect and mammalian herbivores. That is why eucalyptus leaf palatability to sheep and goat is reduced.

Aspect and root trench effect of Eucalyptus globulus boundary plantation on barley yield and soil physicochemical properties in the Gumer district, Central highlands of Ethiopia

“…However, the implanting of Eucalyptus globules along farm boundaries, homesteads, and roadsides with various spatial patterns considered to have ecological effects (Aklilu et al, 2019;Kidanu et al, 2005;Zegeye, 2010;Zerga, 2016;Zewdie, 2008). For example, compared to other tree species, Eucalyptus globules desiccates watercourses (Alemie, 2009;Bauhus et al, 2000;Kidanu et al, 2005) and suppresses germination of understory plants through its allele-chemicals (Akbar et al, 1990;Asmare, 2020;Lisanework & Michelsen, 1993). The evergreen canopy and high lateral root density nature (António Fabião et al, 1990) makes it to be competitive tree than the native once (Armel Thongo M' Bou et al, 2008;Fabiao et al, 1994;Jaleta et al, 2017) To manage and reduce these ecological impacts, and maximize the productivities of the practices, alternative options like above and belowground tree and soil management (A Fabião et al, 2002;Khan et al, 2020;Zewdie, 2008), inter and intra spacing as well as alignment management of plantation (Kidanu et al, 2005;Prasad et al, 2010) becoming mandatory.…”

Aspect and root trench effect of Eucalyptus globules boundary plantation on barley yield and soil physicochemical properties in the Gummer district, Central highlands of Ethiopia

“…However, the implanting of Eucalyptus globules along farm boundaries, homesteads, and roadsides with various spatial patterns considered to have ecological effects (Aklilu et al, 2019;Kidanu et al, 2005;Zegeye, 2010;Zerga, 2016;Zewdie, 2008). For example, compared to other tree species, Eucalyptus globules desiccates watercourses (Alemie, 2009;Bauhus et al, 2000;Kidanu et al, 2005) and suppresses germination of understory plants through its allele-chemicals (Akbar et al, 1990;Asmare, 2020;Lisanework & Michelsen, 1993). The evergreen canopy and high lateral root density nature (António Fabião et al, 1990) makes it to be competitive tree than the native once (Armel Thongo M' Bou et al, 2008;Fabiao et al, 1994;Jaleta et al, 2017) To manage and reduce these ecological impacts, and maximize the productivities of the practices, alternative options like above and belowground tree and soil management (A Fabião et al, 2002; Khan et al, 2020; Zewdie, 2008), inter and intra spacing as well as alignment management of plantation (Kidanu et al, 2005;Prasad et al, 2010) becoming mandatory.…”