Site effects on root characteristics and soil protection capability of two cover crops grown in South Bulgaria

Title:

Site effects on root characteristics and soil protection capability of two cover crops grown in South Bulgaria

Creator:

Himmelbauer, Margarita L., Vateva, Violeta, Lozanova, Ljudmila, Loiskandl, Willibald, and Rousseva, Svetla

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:927efaec-e154-42f3-8c4b-815fc3ef7a2e
uuid:927efaec-e154-42f3-8c4b-815fc3ef7a2e
doi:10.2478/johh-2013-0005

Subject:

rangeland, cover crops, fertilization, root characteristics, and slope protection

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Water erosion has been recognized as a major soil degradation process worldwide. This is of special relevance in the semi-arid areas of South Bulgaria with long periods of drought along with severe rainfall events. The main objective of this study was to evaluate the applicability of Bromus innermis L. and Lotus corniculatus L. for soil protection purposes under different site conditions. The site parameters considered were slope, fertilization and a range of soil physical parameters. The plant parameters were canopy cover, biomass, and root morphological characteristics. The experiment includes plots without and with eleven rates of NPK fertilization on gentle (6o ) and steep slopes (12o ). It was observed that the effect of fertilization on shoot and root growth was stronger on the gentle than on the steep slopes. The biomass accumulation was more sensitive to N than the PK fertilizer applications. The increase of the root density with increasing fertilization rates was more pronounced for the mass than for length or surface area. A significant effect on root diameter was found only for the variants with the highest N application. Treatments with the highest root mass density on both slopes showed the greatest potential for reducing erosion.

Language:

Slovak

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

30-38

Source:

Journal of hydrology and hydromechanics | 2013 Volume:61 | Number:1

Harvested from:

CDK

Metadata only:

false