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*1001 $aPhiri, Samuel$0(NO-TrBIB)1025689$_24086200
*24510$aOrganic matter and phosphorus dynamics under selected cropping systems in the South American tropics$cSamuel Phiri
*260  $aÅs$bDepartment of Soil and Water Sciences, Agricultural University of Norway$c2000
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*4901 $aDoctor scientiarum thesis / Agricultural University of Norway$v2000:23
*500  $aSammendrag på norsk
*502  $aAvhandling (dr. scient.) - Norges landbrukshøgskole, Ås, 2000
*533  $aElektronisk reproduksjon$b[Norge]$cNasjonalbiblioteket Digital$d2011-02-09
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*650 7$aCrop rotation$2agrovoc$_189051600
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*650 7$aGreen manures$2agrovoc$_188275800
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*650 7$aNutrient availability$2agrovoc$_186946600
*650 7$aSoil fertility$2agrovoc$_186533000
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