Impact of bio and organic soil amendments on sunflower damping-off and root-rot diseases under reclaimed soil [electronic resource].

Includes references.

Field experiment was carried out at El-Nubaria Province, El-
Behaira Governorate to investigate the effect of some
organic and biofertilization treatments as soil amendments
on suppression Macrophomina phasolina, Sclerotium rolfisii, and
Rhizoctonia solani, the causal pathogens of root-rot and damping-off
of sunflower (Helianthus annuus L.). Organic amendment
treatments increased the sunflower resistance to soil borne diseases
hence enhanced its productivity. The most promising results
obtained from rice straw+EM1+Urea, biochar+compost, rice
straw+EM1 and EM-Bokashi with no significant differences,
compost and animal manure, respectively compared to the control
treatment (without organic amendment). EM-X (EM1+Bacillus
subtilis+mycorrhiza+Azotobacter sp.) was found to be more
effective in reducing M. phaseolina, S. rolfisii, and R. solani
population and root-rot incidence, therefore enhance sunflower
productivity compared to the other examined biofertilization
treatments including the conventional chemical fertilization as the
control treatment. The integration between rice straw+EM1+Urea or
biochar+compost and EM-X was found to be the furthermost
advised agricultural practices for soil borne diseases management as
land degradation neutrality (LDN) technology that enhances land
cover and area unit productivity under these conditions

Summary in Arabic.