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010 _a21678
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090 _aFolleto 8141
100 0 0 _aBouldin, David.
_914755
245 1 4 _aThe influence of subsoil acidity on crop yield potencial
260 _aIthaca :
_bNew York State College of Agriculture and Life Sciences,
_c1979
300 _a17 h.
_b; gráfs.
490 0 _aCornell International Agriculture Bulletin
_v; 34
500 _aFotocopia
590 _aBATCH-UPD
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590 _aCONVERSION
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650 1 4 _aCultivos
_xRendimiento.
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650 1 4 _aSuelos
_xAcidez.
_9110192
830 0 _aCornell International Agriculture Bulletin
_v; 34
901 _aBK
942 _cFOLL
949 _aFolleto 8141
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949 _aFolleto 8141
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999 _c21678
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