Potential of three microbial bio-effectors to promote maize growth and nutrient acquisition from alternative phosphorous fertilizers in contrasting soils

Chemical and Biological Technologies in Agriculture

Table 3 Bio-effector strains applied

Product	Producer	Abbr.	Species	Type of organism	Formulation	Application rate (cfu g⁻¹ soil)
Control	n.a.	BE0	n.a.	n.a.	n.a.	n.a.
Trianum-P	Koppert, The Netherlands	BE1	Trichoderma harzianum, strain T-22	Fungus	Powder	2.5 × 10⁴
Proradix WP	Sourcon Padena, Germany	BE2	Pseudomonas sp. strain DSMZ 13134	Bacteria	Powder	2 × 10⁶
Rhizovital 42 fl.	ABiTEP, Germany	BE3	Bacillus amyloliquefaciens, strain FZB42	Bacteria	Liquid	2 × 10⁶