Azolla and Cyanobacteria as Possible Nitrogen Biofertilizer Source in Rice Production

Mussa, Sanaa A.I.; Tantawy, Skina; Ghazal, F. M.

doi:10.21608/egyjs.2002.113445

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Cyanobacteria bring out directly or indirectly a number of changes in the physical, chemical and biological properties of the soil and soil-water interface in inoculated soils. Mandal et al (1999) and Mussa et al (2002) for example revealed that cyanobacteria liberate extra cellular or organic compounds and photosynthetic O2 during their growth and contribute biomass. In a cumulative review, Roger and Kulasooriya (1980) reported that besides increasing soil nitrogen fertility, cyanobacteria have been said to benefit rice plants by producing growth-promoting substances.…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF CYANOBACTERIA INOCULATION in PRESENSE OR ABSENCE OF DIFFERENT NITROGEN LEVELS ON MAIZE YIELD, YIELD COMPONENTS, SOIL BIOLOGICAL ACTIVITY AND SOIL NATIVE MYCORRHIZAE

Mikhaeel

Ghazal

2008

Journal of Soil Sciences and Agricultural Engineering

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A field experiments were carried out at EL-Ismailia Agric. Res. Station (ARC), EL-Ismailia Governorate, Egypt, during the Summer seasons of 2007 to study the influence of cyanobacteria inoculation in different rates (0, 50 and 100% of the recommended dose, i.e., 3.5 kg dried cyanobacteria inoculum fed -1 ) individually or in presence and/ or absence of different nitrogen levels (0, 50 and 100% of the recommended dose, (i.e.),100 kg N fed -1 ) on maize yield and yield components and the biological activity of the soil remained after maize harvesting as represented by total count bacteria, cyanobacteria count, CO2 evolution, dehydrogenase (DHA) and nitrogenase (N2-ase) activities. As well as, the soil native mycorrhiza were examined at two periods of 45 and 90 days from maize sowing n response to the tested treatments.Results revealed that all tested treatments increased significantly both maize yield and its components over the control treatment. The highest yield components values were due to 100% N + 100% cyanobacteria and they were comparable to those recorded in presence of 50% N + 100% cyanobacteria treatment. Also the values of maize yield components obtained due to 100% N treatment were not significantly different from those attained due to 100% N + 100% cyanobacteria and 50% N + 100% cyanobacteria treatments. Cyanobacteria inoculation at the rate of 50% combined with 100% N recorded the highest maize protein and carbohydrate percentages. Indefinite trend was noticed of maize oil % in response to cyanobacteria inoculation despite the highest insignifecant oil % increments were noticed due to 50% N + 100% cyanobacteria treatment. Also, indefinite response was observed for ash % due to cyanobacteria inoculation. For soil biological activity, cyanobacteria inoculation enhanced significantly any of total count bacteria, cyanobacteria count, CO2 evolution, dehydrogenase and nitrogenase activities compared to the control treatment received no inoculation. In conclusion, the use of cyanobacteria inoculation technology in cereal crop production such as maize may lead to reduce the amount of mineral nitrogen required for maize production by 50% as well as it ensures good yield quality and safe the environment contaminations resulted from the extensive use of the costly and hazard the so called mineral nitrogen fertilizer.

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Section: Introductionmentioning

confidence: 99%

EFFECT OF CYANOBACTERIA INOCULATION in PRESENSE OR ABSENCE OF DIFFERENT NITROGEN LEVELS ON MAIZE YIELD, YIELD COMPONENTS, SOIL BIOLOGICAL ACTIVITY AND SOIL NATIVE MYCORRHIZAE

Mikhaeel

Ghazal

2008

Journal of Soil Sciences and Agricultural Engineering

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show abstract

“…These benefits achieved due to cyanobacteria inoculation, are in turn increased the nutrients availability to the cultivated plants that ensure high yield and grain quality. Mussa et al (2002) for example revealed that cyanobacteria liberate extra cellular or organic compounds and photosynthetic O2 during their growth and contribute biomass, which in turn enhanced the yield of the cultivated crop and improved its grain quality. In a cumulative review, Roger and Kulasooriya (1980) reported that besides increasing soil nitrogen fertility, cyanobacteria have been said to benefit rice plants by producing growthpromoting substances.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cyanobacteria Inoculation on Maize Yield and Grain Technology Characters

Kassas

2007

Journal of Agricultural Chemistry and Biotechnology

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Azolla and Cyanobacteria as Possible Nitrogen Biofertilizer Source in Rice Production

Cited by 2 publications

References 6 publications

EFFECT OF CYANOBACTERIA INOCULATION in PRESENSE OR ABSENCE OF DIFFERENT NITROGEN LEVELS ON MAIZE YIELD, YIELD COMPONENTS, SOIL BIOLOGICAL ACTIVITY AND SOIL NATIVE MYCORRHIZAE

EFFECT OF CYANOBACTERIA INOCULATION in PRESENSE OR ABSENCE OF DIFFERENT NITROGEN LEVELS ON MAIZE YIELD, YIELD COMPONENTS, SOIL BIOLOGICAL ACTIVITY AND SOIL NATIVE MYCORRHIZAE

Effect of Cyanobacteria Inoculation on Maize Yield and Grain Technology Characters

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