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Titles
English : Response of pean plants grown on a sandy soil to inoculation with Rhizobium and phosphate dissolving bacteria under different levels of phosphorus and sulphur
Arabic : إستجابة نباتات البسلة النامية فى أرض رملية للتلقيح ببكتيريا الريزوبيوم والبكتيرياالمذيبة للفوسفات تحت تأثير مستويات مختلفة من الفوسفور والكبريت
Abstract A field experiment was conducted in a sandy soil at Ismailia Agric. Res. Station, Agricultural Research Center, Egypt to evaluate the effect of seed inoculation with Rhizobium and phosphate dissolving bacteria (PDB) in the presence of phosphorus and sulphur in different rates on peayield, N and P content, nodulation and nitrogenase activity as well as phosphorus availability in soil. Seed inoculation was performed using Rhizobium leguminosarum and/or Bacillus polymyxa along with superphosphate at rates of 0, 15 and 30kg P2O5/fed. and sulphur at rates of 0 and 200kg S/fed. The results indicated that the applied of both P and S caused a substantial increase in the soil P availability particularly in the presence of bacterial inoculum. However, pH values showed no significant changes due to the bacterial inoculation and/or phosphorus application and the decrease in soil pH values occurred only in the treatments received sulphur. Nitrogen and phosphorus concentrations in both seeds and straw, seed yield and yield components of pea were significantly increased upon the application of P and S. In this respect, the dual inoculation of both Rhizobium and B. polymyxa was more prominent in enhancing the increment of these parameters than in the single inoculations. Moreover, these parameters were highly significantly enhanced with raising the rate of P fertilization 15 to 30kg P2O5/fedan. Number and weight of nodules as well as nitrogenase activity of pea roots followed a trend almost similar to that of seed yield and components of pea. Treatments fertilized with 30kg P2O5/fed. and 200kg S/fed. under the combined inoculation produced the greatest values of the all aforementioned parameters. Finally, the obtained results emphasized the effectiveness of the combined inoculation with Rhizobium and B. polymyxa in reducing the normal rate of P fertilization by about 15kg P2O5/fed. for pea
URL
Publication year 2008
Pages 636- 648
Organization Name
    Soil, Water and Environment Research Institute (SWERI)
City الزقازيق
serial title Egypt. J. of Appl. Sci
Author(s) from ARC
Agris Categories Soil biologySoil fertility
AGROVOC
TERMS
Bacillus polymyxa. Peas. Rhizobium. Rhizobium leguminosarum. Sulphur. Superphosphate.
Publication Type Journal

 
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