01523naa a2200289 a 450000100080000000500110000800800410001910000190006024500870007926000090016630000150017550001850019052005160037565000110089165000140090265000200091665000120093665000190094865000140096765000120098165000100099365300210100370000200102470000170104470000230106177301490108415519281996-10-14       1995    bl uuuu     u00u1 u    #d1 aRITCHEY, K. D.  aImproved water and nutrient uptake from subsurface layers of gypsum-amended soils.  c1995  ap.157-181.  aProceedings of a Symposium sponsored by Division S-6 and S-7 of the Soil Science Society of America and A-5 of the American Society of Agronomy in Cincinnati, Ohio, 7-12 Nov. 1993.  aThe availability of by-product gypsum from the electric power generating industry and ways in which gypsum can mitigate subsurface soil acidity and enhance deeper plant rooting. Data from preliminary experiments on Appalachian Region soils and from long-term experiments on tropical soils of Brazil are used to illustrate potential benefits and problems from gypsum use. Recent efforts at diagnosing which soils will benefit from gypsum application and approaches to recommending application rates are reviewed.  agypsum  alimestone  asoil amendments  asoil pH  aAcidez do Solo  aCalcário  aCerrado  aGesso  aCorrecao do solo1 aFELDHAKE, C. M.1 aCLARK, R. B.1 aSOUSA, D. M. G. de  tIn: KARLEN, D.L.; WRIGHT, R.J.; KEMPER, W.O., ed. Agriculture utilization of urban and industrial by-products. Madison: ASA / CSSA / SSSA, 1995.