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Soil and Root Attributes in Pastures Managed under Different Stocking Rates and Nitrogen Fertilization Levels

Soil and Root Attributes in Pastures Managed under Different Stocking Rates and Nitrogen... AbbreviationsADair‐dried aggregratesASaggregate stabilityASIaggregate stability indexAUanimal unitAWaggregates in waterBDbulk densityCECcation exchange capacityIPAAgronomic Institute of PernambucoLlinearLF‐SOMlight fraction of soil organic matterPDparticle densityQquadraticRLDroot length densitySOMsoil organic matterSRstocking rateTPtotal porosityWIRwater infiltration rateGrasslands account for 25% of earth land surface (Schimel, 1995). To reach long‐term grassland ecosystem sustainability, understanding soil, plant, and animal relationship is essential (da Silva et al., 2015). For example, some negative aspects associated with grazing, such as soil compaction, might have their negative effects reduced by adding other management practices such as adjustment of grazing pressure and N fertilization. The relationship between grazing management practices and N fertilization and their effects on soil properties have not been well studied (Bell et al., 2011). Several human activities degrade pasture ecosystems. Stocking rate (and grazing pressure) greater than the optimum is perhaps the single most important factor, because it affects plant community, soil, hydrology conditions (Ibáñez et al., 2007), as well as changes the balance of nutrients (Kurz et al., 2006). Nevertheless, when pastures are well managed, the negative effect on soil properties caused by the animals is minimized, maintaining the productivity and the stability of the environment (Zhao et al., 2007; Ferreira et al., 2010).Changes in bulk density, soil porosity, soil http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Agrosystems, Geosciences & Environment" Wiley

Soil and Root Attributes in Pastures Managed under Different Stocking Rates and Nitrogen Fertilization Levels

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References (70)

Publisher
Wiley
Copyright
© American Society of Agronomy
eISSN
2639-6696
DOI
10.2134/age2018.08.0031
Publisher site
See Article on Publisher Site

Abstract

AbbreviationsADair‐dried aggregratesASaggregate stabilityASIaggregate stability indexAUanimal unitAWaggregates in waterBDbulk densityCECcation exchange capacityIPAAgronomic Institute of PernambucoLlinearLF‐SOMlight fraction of soil organic matterPDparticle densityQquadraticRLDroot length densitySOMsoil organic matterSRstocking rateTPtotal porosityWIRwater infiltration rateGrasslands account for 25% of earth land surface (Schimel, 1995). To reach long‐term grassland ecosystem sustainability, understanding soil, plant, and animal relationship is essential (da Silva et al., 2015). For example, some negative aspects associated with grazing, such as soil compaction, might have their negative effects reduced by adding other management practices such as adjustment of grazing pressure and N fertilization. The relationship between grazing management practices and N fertilization and their effects on soil properties have not been well studied (Bell et al., 2011). Several human activities degrade pasture ecosystems. Stocking rate (and grazing pressure) greater than the optimum is perhaps the single most important factor, because it affects plant community, soil, hydrology conditions (Ibáñez et al., 2007), as well as changes the balance of nutrients (Kurz et al., 2006). Nevertheless, when pastures are well managed, the negative effect on soil properties caused by the animals is minimized, maintaining the productivity and the stability of the environment (Zhao et al., 2007; Ferreira et al., 2010).Changes in bulk density, soil porosity, soil

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"Agrosystems, Geosciences & Environment" – Wiley

Published: Jan 1, 2019

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