EExperiments of this study were conducted at the Faculty of Agriculture, Moshtohor, Benha University
Fiber and yarrrn properties were conducted at cotton research institute, Agric. Res. Center, Giza Egypt during
2013 and 2014 seasons The effect of applying biofertilizers with the recommended rates as soil addition With
the plant growth promoting Rizobactria(PGPR)and Biosoal as well as foliar spray with PGPR ,biosoal and
compost tea.were studied Also, the combinations of PGPR+ biosoal; PGPR+ compost tea and PGPR + biosoal+
compost tea. Different applied treatments were added through plant growth at,45,65,85and 105 days after
sowingduring 2013 and 2014 seasons. At 125 days after sowing i.e., 20 days after the last addition and /or spray
vegetative growth,yield, chemical analysis, some yield components and fiber& yarn properties were
estimated.The most important results can be summarized as follows:
Different applied treatments increased growth characteristics i.e., plant height, number and total area of
leaves/ plant, number of vegetative and fruiting branches/plant and total chlorophyll during bothgrowing
seasons. The most effective treatments upon growth characteristics were the combination of PGPR+
Biosoal+Compost Tea. Also, yield and yield components i.e. bolls weight/plant, seed cotton yield (g) /plant and
(kantar)/ feedan, lint weight( g) /plant, lint % and seed yield index as well.In addition,the treatment of mixed
bacteria strains when applied in form of foliar spray PGPR+Biosoal +compost tea increased mineral nutrients
i.e.N, P, K,Ca, Mg, Fe, Zn and Cu contents in Egyptian cotton leaf at 125 days after sowing during 2013 &2014
seasons. Furthermore, fiber physical and mechanical properties of yarn under different applied treatments were
increased |
