[A program for nematode control by use of horseradish and mustard [Beta vulgaris L. var. saccharifera; Emilia-Romagna]]

abonos nitrogenados agronomic characters armoracia rusticana beta vulgaris biological control características agronómicas caractère agronomique caratteri agronomici coltivazioni associate companion crops concimi azotati control biológico control de nematodos controllo biologico controllo dei nematodi cultivos asociados date de semis emergence emergencia emergenza emilia romagna engrais azoté epoca di semina erpicatura experimentación en campo expérimentation au champ falciatura fauchage fecha de siembra field experimentation fioritura floración floraison flowering harrowing hersage heterodera schachtii labranza mínima larvae larvas larve levée lutte antinématode lutte biologique minima lavorazione minimum tillage mowing nematode control nitrogen fertilizers parassiti delle piante pests of plants plagas de plantas plante de culture associée rastreo ravageur des plantes siega sinapis alba sinapsis alba sowing date sperimentazione in campo travail du sol minimal émilie romagne