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|a Sistema Bibliotecario Universidad de El Salvador
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|a Química
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|a Mazariego, Ana Gloria,
|e autor
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|a Estudio del efecto desarrollado por diferentes productos químicos sobre la mineralización de rastrojos de cosecha incorporados al suelo /
|c presentado por, Ana Gloria Mazariego.
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|a San Salvador :
|b U.E.S.,
|c 1990.
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|a 101 h. :
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|a Tesis (Licenciatura en Ciencias Químicas)--Universidad de El Salvador, San Salvador, 1990.
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| 505 |
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|a Micro-flora del suelo y descomposición de la materia orgánica -- Descomposición de la materia orgánica cruda y aportación de nitrógeno al suelo -- Factores relacionados con la pérdidas de nitrógeno en el suelo
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