Field experiment was carried out at Research Station of the Faculty of Agriculture,
Muthanna University, Iraq, during 2014/2015 season, to study the effect of adding
NPK, biofertilizers Bacillus Subtilis and Glomus Mosseae on the growth and
yield
of maize (Zea may L.). The treatments were i.e control (zero: no vaccine),
biofertilizers Bacillus subtilis treatments, Glomus mosseae, both biofertilizers (F0,
F1, F2 and F3), respectively, Three levels of NPK liquid fertilizer i.e. 0, 5000, 7500
mg )C0, C1, and C2 respectively). The experiment design was RCBD with three
replications arranged according to split plot.
Effect of organic and bio fertilizers (Azotobacter and phosphate solubilizing
bacteria) on production of potatoes and some soil properties was studied in
Tartous.
The experiment consisted of 4 treatments (control soil, soil+manure, soil+
bioferti
lizer and soil+manure+biofertilizer) each replicated four time, for 2004
and 2005 seasons.
Total N, available P, available K, and organic matter in soil were
determined.
Significant increases were observed in most of the inoculated and organic
fertilized treatments compared with the control. However, the treatment
(soil+manure+biofertilizer) was the best and showed significant increases in
potato yield compared with other treatments especially in the next season.
However, the second season was better in yield increase in all treatments
than the first seacon.
