Two years field study were carried out in El-Noubaria and Sakha research station, Cotton ResearchInstitute, Agricultural Research Center at Giza, Egypt, during 2018 and 2019 seasons. The aim of this studywas to study the effects of inoculating some Egyptian cotton genotypes (Giza 97 and Giza 96) grown onclay and calcareous soils with different bio-fertilizers (Bacillus Polymxa, Bacillus megaterium, Bacilluscirculans, Azotobacter and Azospirillum) on yield components and ginned cotton characteristics. Resultsshowed that when added the bacterial strains to the soil three times at 65, 85 and 105 days after sowingthrough the irrigation water of cotton plants, the bio treatments improved the absorption and available ofNPK leading to reproductive organ, exhibited the result higher significant values due all the treatments withusing low amount of mineral fertilizers. There was a significant increase in Sakha region with clay soil formost traits compared to Noubaria region with calcareous soil, while there were no significant differences inNoubaria region for short fiber index and upper half mean. The bio treatments in most traits under studygive that highly significant increased. Generally, the application of Biofertilizer improved yield and itscomponents and ginned cotton properties of some Egyptian cotton genotypes in clay and calcareous soils.

(PDF) Effect of Biofertilizer Applications on Yield Components and Ginned Cotton Characteristics of some Egyptian Cotton Genotypes Growing in Clay and Calcareous Soil. Available from: https://www.researchgate.net/publication/391624446_Effect_of_Biofertilizer_Applications_on_Yield_Components_and_Ginned_Cotton_Characteristics_of_some_Egyptian_Cotton_Genotypes_Growing_in_Clay_and_Calcareous_Soil.