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  • peru (82)

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SUBJECT: modele mathematique; cotacao; prix; mathematical models; agricultural products

SUBJECT: meteorological elements; air temperature; facteur climatique; peru; climatic factors

SUBJECT: profitability; programacion lineal; datos de produccion; planification de l'exploitation; cultivos

SUBJECT: profitability; nitrogen fertilizers; abonos nitrogenados; aplicacion de abonos; cultivos

SUBJECT: seguridad alimentaria; subsidios; subvention; agricultural products; productos agricolas

SUBJECT: piura; food crops; engrais npk; npk fertilizers; rendement des cultures

SUBJECT: caracteristicas agronomicas; mosca minadora; potatoes; plante de serre; caractere agronomique

SUBJECT: caracteristicas agronomicas; kidney beans; essai de variete; economic analysis; haricot commun

SUBJECT: ecologie; ecologia; superficie de la explotacion; parterre de coupe; consumer behaviour