Root System Production and Aboveground Biomass Production of Chosen Cover Crops

Authors: M. Hajzler, J. Klimesova, T. Streda, K. Vejrazka, V. Marecek, T. Cholastova

Abstract:

The most planted cover crops in the Czech Republic are mustard (Sinapis alba) and phacelia (Phacelia tanacetifolia Benth.). A field trial was executed to evaluate root system size (RSS) in eight varieties of mustard and five varieties of phacelia on two locations, in three BBCH phases and in two years. The relationship between RSS and aboveground biomass was inquired. The root system was assessed by measuring its electric capacity. Aboveground mass and root samples to be evaluated by means of a digital image analysis were recovered in the BBCH phase 70. The yield of aboveground biomass of mustard was always statistically significantly higher than that of phacelia. Mustard showed a statistically significant negative correlation between root length density (RLD) within 10 cm and aboveground biomass weight (r = - 0.46*). Phacelia featured a statistically significant correlation between aboveground biomass production and nitrate nitrogen content in soil (r=0.782**).

Keywords: Aboveground Biomass, Cover crop, Nitrogen content, Root system size

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1072706

References:

[1] A. Meerkerk, Rainfed orchards in semi-arid environments: retaining the water and the soil. Dissertation, Université Catholique de Louvain. 2008.
[2] T. B. Parkin, T. C. Kaspar,J. W. Singer, "Cover crop effects on the fate of N following soil application of swine manure," Plant and Soil, vol. 289, pp. 141-152, 2006.
[3] O. Chloupek, "Evaluation of size of a plant's root system using its electrical capacitance," Plant and Soil, vol. 48, pp. 525-532, 1977.
[4] M. L. Himmelbauer, W. Loiskandl, F. Kastanek, "Estimating length, average diameter and surface area of roots using two different Image analyses systems," Plant and Soil, vol. 260, pp.111-120, 2004.
[5] P. J. Gregory, Plant roots, growth, activity and interaction with soils. Oxford: Blackwell Publishing, 2006, p. 318.
[6] O. Chloupek, Agricultural Research. Prague: Academia, 1996.
[7] V. Brant, et al., Cover crops. ─îeské Bud─øjovice: Kurent, 2008, p. 86.
[8] MESAM (Measures against Erosion and Sensibilisation of farmers for the protection of the environMent) project report on cover crops, European Interreg III project, 2007, p. 7.
[9] S. De Baets, J. Poesen, J. Meersmans, L. Serlet, "Cover crops and their erosion-reducing effects during concentrated flow erosion," Catena, vol. 85, pp. 237-244, 2011.
[10] D. C. Reicosky, F. Forcella, "Cover crops and soil quality interactions in agroecosystems," Journal of Soil and Water Conservation, vol. 53, pp. 224-229, 1998.
[11] J. M. Herrera, M. Liedgens, "Leaching and utilization of nitrogen during a spring wheat catch crop succession," Journal of Environmental Quality, vol. 38, pp. 1410-1419. 2009.
[12] J. B. Wilson, "A review of evidence on the control of shoot:root ratio, in relation to models," Annals of Botany, vol. 61, pp. 433-449, 1998.