000 00786nab a22002897a 4500
001 G967
003 MX-TxCIM
008 121211b |||p||p||||||| |z||| |
040 _aMX-TxCIM
041 0 _aEn
072 0 _aP36
090 _aREP-3446
100 1 _aPierce, F.J.
245 0 0 _aSoil productivity in the corn belt:
_b An assessment of erosion's long-term effects.
260 _c1984
340 _aPrinted
546 _aEnglish
595 _aRPC
650 1 0 _aErosion
_91961
650 1 0 _91314
_aZea mays
_gAGROVOC
650 1 0 _91952
_aSoil fertility
_gAGROVOC
700 1 _aDowny , R.H.,
_ecoaut.
700 1 _aGraham, W.A.P.,
_ecoaut.
700 1 _aLarson, W.E.,
_ecoaut.
773 0 _tJournal of Soil and Water Conservation
_n601811
_gv. 39, no. 2, p. 131-138
942 _cJA
999 _c10785
_d10785