Bio-preparates support the productivity of potato plants grown under desert farming conditions of north Sinai: Five years of field trials

摘要: Organic agriculture as well good agricultural practices (GAPs) intrigues the concern of both consumers and producers commodities. Bio-preparates various rhizospheric microorganisms (RMOs) are potential sources biological inputs supporting plant nutrition health. The response open-field potatoes to application RMO bio-preparates, biofertilizer “Biofertile” bioagent “Biocontrol”, were experimented over 5 successive years under N-hunger north Sinai desert soils. Both vegetative tuber yields a number tested cultivars significantly improved due rhizobacterial treatments. In majority cases, did successfully supply ca. 50% N requirements, yield full N-fertilized plants was comparable those received simultaneously with bio-preparates treatment. magnitude inoculation cultivar-dependent; cvs. Valor Oceania among most responsive ones. Bio-preparate introduction plant–soil system successful via soaking tubers and/or spraying canopy. “Biocontrol” formulation supportive in controlling pathogens increased fruit yields. cumulative effect resulted increases 25% control.