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|a Universidad Nacional Agraria
|b spa
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|a P33
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| 908 |
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|a P34
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| 909 |
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|a F04
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| 911 |
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|a AM
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| 978 |
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|a RS
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| 979 |
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|a 04-06-2001
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| 991 |
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|a TEXTO
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| 991 |
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|a ROMAY
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| 020 |
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|a ISBN 0-89118-796-0
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| 035 |
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|a 013144
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|a spa
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| 092 |
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|a F04 F667
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| 100 |
1 |
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|a Smith, S.=700 1
|a Caáel, D.K.
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| 245 |
1 |
0 |
|a Estimating nitrate leaching in soil materials
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| 773 |
0 |
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|t Managing nitrogen for groundwater quality and farm profitability: Proceedings of a Symposium sponsored by Divisin A-5 of the American Society of Agronomy; S-1, S-3, S-4, S-6, and S-8 of the Soil Science Society of America; and Division C-3 and C-5 of the Crop Science Society of America, Anaheim, CA, 1988
|d Wisconsin (EUA) , 1991
|x ISBN 0-89118-796-0
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| 300 |
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|a p. 165-188
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| 500 |
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|a Ilus.; 19 ref.
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| 650 |
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7 |
|a NITRATOS
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| 650 |
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7 |
|a ABONOS NITROGENADOS
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| 650 |
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7 |
|a CULTIVOS
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| 650 |
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7 |
|a MATERIA ORGANICA
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| 650 |
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7 |
|a ESTIMACION
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| 650 |
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7 |
|a PROPIEDADES FISICO-QUIMICAS SUELO
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| 650 |
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7 |
|a PERMEABILIDAD
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| 942 |
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|c BK
|2 agris
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| 952 |
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|a 01
|b 01
|8 CG
|c CG
|y BK
|p L0568/00
|o F04 F667
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