EFFECT OF GRAIN BIOINOCULATION ON WHEAT YIELD AND ITS COMPONENTS UNDER APPLYING DIFFERENT LEVELS OF NITROGEN FERTILIZATION | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 3, Volume 25, Issue 1, January 2011, Page 25-35 PDF (411.67 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2011.195030 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Magda A. Ewais; Dalia A. Sayed; R.G. El-Sayim | ||||
| Soils, Water and Environment Res. Inst. Agric. Res. Center, Giza, Egypt. | ||||
| Abstract | ||||
| A field experiment was conducted at El-Wanysa village, Itsa district, El-Fayoum Governorate, during the two successive winter seasons of 2008/2009 and 2009/2010 to investigate the influence of applied different mineral nitrogen levels and grain bio-inoculation with, Azotobacter and /or Azospirillum and their interactions on wheat growth, yield and its attributes as well as N-uptake of either wheat grain or straw and grain protein content. A split plot design with three replicates was used. The obtained results could be summarized as follows: The results showed significant increases in plant dry weight, plant height, spike length, 1000-grain weight, grain or straw yield/fed. N-uptake by straw or grain and of grain protein content either by increasing the rate of mineral nitrogen or with grain inoculation by the tested N2-fixers. In addition, the dual grain inoculation with Azotobacter and Azospirillum performed significantly greater followed by single inoculation with either Azospirillum or Azotobacter. At any level of N-fertilizer, the inoculated treatments gave much higher straw and grain yields than the uninoculated one. From the economical point of view, it could be concluded that, the amount of mineral N-fertilizer could be reduced by using grain bioinoculation, which in turn increases soil fertility as well as, minimizes the production cost and environmental pollution, which can occur by the excess use of chemical fertilizers. | ||||
| Keywords | ||||
| Grain wheat-inoculation- Azotobacter- Azospirillum; growthyield- chemical constituents | ||||
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