PROFITABILITY OF USING HAI..OTOLERAN r N2-FlXE.RS AND ITS ROLE IN IMPROVING SOME SOIL PROPE~TIES AND PRODUCTIVITY UNDER TOOR SINAI, SOUTH SINAI CONDITION | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 3, Volume 30, Issue 12, December 2005, Page 8259-8275 PDF (198.52 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2005.238825 | ||||
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| Authors | ||||
| M.M. Reda; Faten M. Mohamed; Elham M. Aref | ||||
| Soil, Water and Environ. Res. lnst., Agiic. Res. Center, Giza, Egypt. | ||||
| Abstract | ||||
| Two winter wneat f1f:ld exper.ments we:« des,g,~ed .:' EI-Gabeal at Toor Sinai. south Sinal durrnq (2002-2003) and (2003-2004) seasons, to study the possrble amelioration for some physical, biological and nutritional status of saline calcareous scils and it~ crooucnvity uSing oiotechnologies. Whezt ISa~ha 8) W<JS sown as a test crop fc- ~('\I productivity The treatments comprised (1, haiotolerant t'b-flxers ciotertilizers as inocutation with (Azosp < /em>iril,'!JI7) sp + Klet>siella sp < /em>.). Nc-fixing cyanobactena (Nosroc sp. + Anabaena sp ) and uninoculated. (2, applied N-Ieveis. as 20. -10. 60, eo and 100 kg N/fed (3) methods of blo(ert·.!\lation as soal.(\ns grains grain inoculation anc (sooking+ grain inoculation). Results showed .mproverr.ents lor several soil physical parameters Bulk density, saturated hydraulic conouctivrty (SHe) and total porosity were ar: relioratec as a result of biofertilizalion referring 10 un inoculated and control (2<.' kg N/fed) treatments. Ni-fixers cyanobacteria (Nostoc sp. + Anabaena sp ) by (soaking + grain mocutano-i) method was the best supporters in certain suitable SOl! structure. particularly in the presence of 60 kg Nlfed treatment ;..., positive eHect of either crain or (soaking + grain inocutat-oru method was noticed by with both \AzosplrillIJm sp + Klebsiella sp < /em>.) and cyanobacteria tNostoc sp • Anabaena sp.) inoculation on their densities and dehydrogenase activity In wheat rhizosphere plants, particularly at 75'h day of sowing in the presence of 100 kg N/fed Klebsiella sp < /em>. gave high densities compared with Azosp < /em>iril!um sp .. While nitrogenase activity and available N in soil considerably increased in ccrnpanson to uninoculated and control (20 kg Nlfed) treatments, particularly at 75'h day of sowing in the presence of 60 kg Nlfed and inocutation with (Azosp < /em>irillum sp. + Klebsiella sp < /em>.) treatments 'Nheat grains and straw Yields as well as N-fert!lizer use efficiency were enhanced In response to different methods of biotert'lization and N-Ievels. especially with soaking + grain inoculation method in the presence of 60 i<g N/fed achieving relatIvely high increases compared to un Inoculated treatments arnenoed With 60 or 100 kg N/ffd Similar trends were also observed for the ccntent of nitrogen. total amino acres and crude protein In grains and straw In response (0 inoculation with (Azosp < /em>,r/Ji:Jm sp, + Klebsiella sp < /em>.) which in turn was more effective. This means that (soaking+ grain Inoculation) method with .~~Iotoleranl Nrflxlng i e Azosoirillum sp. + Klebsiella sp < /em>.) and cyanobacteria iNostoc sp < /em>. and Anabaena sp ) may save (20-:'J) kg N/fed | ||||
| Keywords | ||||
| Nitrogen fertilizer. saline soil calcareous soil. biofertilization. N2-fixng bacteria. r.yanobacteria. soaking. grains inoculation; wheat production South Sinai | ||||
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