[Cultivation of potatoes [textbook]]

abonos nitrogenados almacenamiento cosecha cultivation cultivo danemark denmark dinamarca economia economics economie enfermedades de las plantas ensemencement fertilisation fertilizer application fitomejoramiento harvesting insecte nuisible irrigation maladie des plantes malezas mauvaise herbe nitrogen fertilizers papa pathogens pest insects plant breeding plant diseases plant protection pomme de terre potatoes pratique culturale protection des plantes riego siembra soil sol solanum tuberosum sowing stockage storage suelo variedades varieties weeds