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IV SIMPOSIO INTERNACIONAL DE PASTIZALES<br />

San Luis Po<strong>to</strong>sí, S.L.P. México 22 al 24 de agos<strong>to</strong> de 2007<br />

Artículos in extenso<br />

Área temática: Desertificación<br />

obtuvieron Hahm y Wester (2004) con el zacate navajita donde no se obtuvo un beneficio de los<br />

biosólidos sobre la emergencia de esta especie. El zacate b<strong>and</strong>erilla no germinó en ninguno de<br />

los tratamien<strong>to</strong>s, lo cual pudiera atribuírse en parte a la variedad utilizada.<br />

CONCLUSIONES Y RECOMENDACIONES<br />

Las dosis de 10 a 20 <strong>to</strong>n/ha de biosólidos en ambos mé<strong>to</strong>dos de aplicación tienen potencial<br />

para mejorar el establecimien<strong>to</strong> de zacates nativos como el navajita y gigante. No se<br />

encontraron efec<strong>to</strong>s benéficos de los biosólidos sobre el zacate b<strong>and</strong>erilla. Se recomienda la<br />

aplicación de biosólidos en áreas cercanas a la planta de tratamien<strong>to</strong> de aguas residuales con<br />

el fin de reducir cos<strong>to</strong>s bajos de transporte de biosólidos.<br />

LITERATURA CITADA<br />

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wastewater treatment plants in Mexico: meeting the proposed regulation. In: Specialised<br />

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Association (IWA)-UNAM-UAM. Acapulco, México.54-61.<br />

Ben<strong>to</strong>n, M.W. y D.B. Wester. 1998. Biosolids effects on <strong>to</strong>bosagrass <strong>and</strong> alkali saca<strong>to</strong>n in a Chihuahuan<br />

desert grassl<strong>and</strong>. Journal of Environmental Quality. 27:199-208.<br />

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Day, D.A. y K.L. Ludeke. 1993. Plant nutrients in desert environments. Springer-Verlag. Berlin, Germany.<br />

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Gómez, P.J.M., A. Ruiz de Apodaca, C. Rebollo, J. Azcárate. 2001. European policy on biodegradable<br />

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Hahm, M.J. y D.B. Wester. 2004. Effects of surface-applied biosolids on grass seedling emergence in the<br />

Chihuahuan desert. Journal of Arid Environments. 58:19-42.<br />

Harris-Pierce, R.L., E.F. Redente y K.A. Barbarick. 1995. Sewage-sludge application effects on runoff<br />

water quality in a semi<strong>arid</strong> rangel<strong>and</strong>. Journal of Environmental Quality. 24:112-115.<br />

Hyder DN, Everson AC, Bement RA. 1971. Seedling morphology <strong>and</strong> seeding failures with blue grama. J<br />

Range Manage; 24: 287-292.<br />

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Geográfica del Estado de Chihuahua. Aguascalientes, Ags.<br />

Jurado, P. y D.B. Wester. 2001. Effects of biosolids on <strong>to</strong>bosagrass growth in the Chihuahuan desert.<br />

Journal of Range Management. 54:89-95.<br />

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