EFFECT OF Azotobacter chroococcum AND Azospirillum brasilense INOCULATION AND ANHYDROUS AMMONIA ON ROOT COLONIZATION, PLANT GROWTH AND YIELD OF WHEAT PLANT UNDER SALINE ALKALINE CONDITIONS
Year: 2002
Type: article
Abstract: A field experiment was conducted to study the effect of different rates of nitrogen (anhydrous ammonia at O. 20, 40. 60 and 80 Kg N fed-I) and single or dual inoculation with Azosp < /em>irillum brasi/ense and Azotobacter chroococcum on plant growth and N-uptake of wheat at Abo Eash (Fayoum Governorate) during the growing season of 2000-2001. The experimental design was split-split plot in a randomized complete biocks with three replicates. The obtained data showed significant increases in dry weight and yield either by increasing the rate of nitrogen application or with dual inoculation. All the inoculants gave significantly higher grain and straw yield and nitrogen uptake by wheat plant than other uninoculated treatment. it was observed that dual inoculation with Azotobacter chroococcum and Azospirillum brasilense perfonned significantly better followed by single inoculation with Azotobacter or Azospirillum. The maximum benefit was obtained with combined inoculation at all levels of N-fertilizer and increased all values of wheat yield and its components. The results illustrated that, incremental rates of applied nitrogenous fertilizer to wheat plants gradually increased the means of N-uptake by both grains and straw. It could be concluded that a substantial amount of chemical N fertilizer could be saved by using biofertilizer which In turn minimizes the production costs and pollution factors, which can occur by the excess use of chemical fertilizers.
Authors: Nadia Ali,, S. Darwish, S. Mansour
Institution: Agricultural Research Center
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4294094838