02867nam a2200685 a 450000100080000000500110000800800410001910000230006024500520008326000390013530000320017449000420020652011640024865000150141265000120142765000110143965000150145065000270146565000110149265000250150365000130152865000090154165000190155065000130156965000190158265000110160165000190161265000150163165000120164665000120165865000140167065000160168465000240170065000270172465000290175165000280178065000160180865000180182465000110184265000090185365000090186265300220187165300140189365300110190765300130191865300120193165300230194365300150196665300140198165300150199565300090201065300300201965300190204965300260206865300230209465300120211765300250212965300120215470000150216615516842014-03-13       1996    bl uuuu     u0uu1 u    #d1 aSOUSA, D. M. G. de  aCorrecao do solo e adubacao da cultura da soja.  aPlanaltina, DF: EMBRAPA-CPACc1996  a30p.c4 figuras, 5 tabelas.  a(EMBRAPA-CPAC. Circular Tecnica, 33).  aIn order to grow soybeans in cerrado soils it is necessary a previous, reduction of soil acidity and to build up the soil fertility. It is recommended the application of limestone to raise the soil pH up to the range between 5,5 and 6,0 or to increase base saturation up to 50%. The chemical constraints for root growth in the subsurface soil layers, such as the high aluminum saturation and/or calcium defficiency, can be overcome by the addition of gypsum. The recomended levels of gypsum vary from 700 kg/ha for sandy soils to 3200 kg/ha for heavy clayey soils. Fertilizers to supply phosphorus and potassium are recommended according to their availability in the soil determined by chemical analysis. Critical levels for those nutrients as well as the fertilizers recommendations are presented and vary with soil clay content. Alternatives for these aplications are offered. As for the micronutrients, the fertilizers recommendations are based on their availability detected either by plant or soil analysis. The most common deficiency is related to zinc. There are, also, some indications for boron and copper defficiencies after a few years of cropping.  aacid soils  aacidity  aBrazil  aFerralsols  afertilizer application  aliming  anitrogen fertilizers  asavannas  asoil  asoil fertility  asoybeans  atrace elements  aAcidez  aAcidez do Solo  aAdubação  aCalagem  aCerrado  aCorretivo  aFertilidade  aFertilidade do Solo  aFertilizante Fosfatado  aFertilizante Nitrogenado  aFertilizante Potássico  aGlycine Max  aMicroelemento  aOxisol  aSoja  aSolo  aAspecto economico  aAvaliacao  aBrasil  aCorrecao  aCultivo  aEconomic situation  aEvaluation  aFertility  aFertilizer  aLime  aMicronutrient fertilizers  aMicronutriente  aPhosphate fertilizers  aPotash fertilizers  aSavanna  aSolo: Acidez do solo  aSoybean1 aLOBATO, E.