Massoud, O., Abd El-Monium, M., Mohamed, F. (2009). FIELD TRAILS TO IMPACT OF COLONOZATION WITH AM-FUNGI, N2-FIXERS AND POTASSIUM SOLUBLIZING BACTERIA ON ONION CROPS (Allium cepa). Journal of Agricultural Chemistry and Biotechnology, 34(2), 781-792. doi: 10.21608/jacb.2009.90282
O. N. M. Massoud; M. M. Abd El-Monium; Faten M. Mohamed. "FIELD TRAILS TO IMPACT OF COLONOZATION WITH AM-FUNGI, N2-FIXERS AND POTASSIUM SOLUBLIZING BACTERIA ON ONION CROPS (Allium cepa)". Journal of Agricultural Chemistry and Biotechnology, 34, 2, 2009, 781-792. doi: 10.21608/jacb.2009.90282
Massoud, O., Abd El-Monium, M., Mohamed, F. (2009). 'FIELD TRAILS TO IMPACT OF COLONOZATION WITH AM-FUNGI, N2-FIXERS AND POTASSIUM SOLUBLIZING BACTERIA ON ONION CROPS (Allium cepa)', Journal of Agricultural Chemistry and Biotechnology, 34(2), pp. 781-792. doi: 10.21608/jacb.2009.90282
Massoud, O., Abd El-Monium, M., Mohamed, F. FIELD TRAILS TO IMPACT OF COLONOZATION WITH AM-FUNGI, N2-FIXERS AND POTASSIUM SOLUBLIZING BACTERIA ON ONION CROPS (Allium cepa). Journal of Agricultural Chemistry and Biotechnology, 2009; 34(2): 781-792. doi: 10.21608/jacb.2009.90282
FIELD TRAILS TO IMPACT OF COLONOZATION WITH AM-FUNGI, N2-FIXERS AND POTASSIUM SOLUBLIZING BACTERIA ON ONION CROPS (Allium cepa)
Soils, Water and Environ. Res. Ins., Agric. Res. Center (ARC), Giza, Egypt
Abstract
Two field experiments were conducted in a calcareous soil at El-Noubaria Research Station (ARC) during two successive seasons (2006 and 2007) to study the effect of biofertilizer inoculation with nitrogen fixing bacteria (Azospirillum lipoferum, Azotobacter chrococcoum, Bacillus polymyxa and Klebsiellapneumoniae), K-solubilizing bacteria (Bacillus circulans) and Arbuscular mycorrhizal fungi on growth, yield and different storage periods of onion (Allium cepa) cultivar Giza 20. The important obtained results are as follows: Plant height and number of tubular leaves, plant dry weight and yield as growth parameters, nitrogenase enzyme activity, dehydrogenase enzyme activity and the percentage of AM-mycorrhizal infection as microbiological parameters and total nitrogen, phosphorus, potassium and carbohydrates as chemical parameters gave more vigor growth and yield due to the inoculation with N2-fixers + Bacillus circulans + AM-mycorrhizae + ½ dose of NPK fertilizers compared to control during both tested seasons and that also they recorded best plant growth, harvest bulbs yield (12.7 and 13.7 ton/fed), onion chemical properties as well as increased the tolerance against diseases and maintained healthy bulbs during the different storage periods.
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