Basal fertiliser application method, tuber initiation nitrogen, foliar NPK and the tolerance of potatoes to infection by the potato cyst nematodes Globodera rostochiensis and G. pallida

abonos augmentation de rendement aumento del rendimiento chemical control engrais fertilizers globodera pallida globodera rostochiensis infection lutte chimique nematicides nematocidas nematocide nematodos de las plantas oxamilo oxamyl papa plant nematodes pomme de terre potatoes yield increases