01338nam a2200277 i 450000100070000000500170000700700030002400800410002702000150006804000230008304100080010604300080011408200160012210000360013824504150017426400550058930000520064433600270069633700330072333800280075649000420078450400280082665000660085465000740092065000660099402766520251030132718.0t|150107s1997    xx##################eng#d  a0891188290  aCO-ViULLerdabspa0 aeng  axxu04a631.8bR4251 aBuresh, Roland J.,eeditor4edt10aReplenishing Soil Fertility in Africa :bProceedings of an International Symposium Cosponsored by Divisons A -6 ( International Agronomy) and S-4 (Soil Fertility and Plant Nutrition) and the International Center for Research in Agroforestry, held at the 88th annual Meetings of America Society of Agronomy and the Soil Science Society of America Indianapolis, Indiana 6 november 1996 /cRoland Buresh. edition. 1aMadison :bSoil Science Society of America,c1997.  axix, 251 páginas :bilustraciones; tbs; graf.  atextobtxt2rdacontent  asin mediaciónbn2rdamedia  avolumenbnc2rdacarrier 0aSSSA Special Publication Number No.51  aIncluye Bibliografía.07aFERTILIDAD DE SUELOS - AFRICA - CONGRESOS, CONFERENCIAS, ETC.07aPRODUCTOS QUIMICOS AGRICOLAS - AFRICA - CONGRESOS, CONFERENCIAS, ETC.07aNUTRICION DE PLANTAS - AFRICA - CONGRESOS, CONFERENCIAS, ETC.