The counterplan of soil sickness caused by continuous cropping

agentes nocivos animal animal nuisible animales animales nocivos animals aschelminthes chemicophysical properties chemistry chimie chimie du sol continuous cropping control de plagas cropping systems cultivo continuo culture continue diseases facteur nuisible fertilidad del suelo helminthe helminths helmintos injurious factors invertebrados invertebrates losses nematode nematodes nematodos nematodos de las plantas noxious animals organisme nuisible perte pest control pests plagas plant nematodes profitability rentabilidad sistemas de cultivo soil chemistry soil fertility soil physicochemical properties