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English :
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Evaluation the efficiency of seeding rate and inoculation with some diazotrphes on growth, yield and protein content of wheat crop (Triticum aestivum L.) grown in sandy soils under graded levels of N-fertilizer
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Arabic :
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دراسة كفاءة معدلات التقاوي وبعض المخصبات الحيوية مع النيتروجين المعدني على النمو والمحصول ومكوناتة ومحتوي البروتين لمحصول القمح في الأراضي الرملية
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| Abstract |
Two field experiments were carried out in Ismailia Agricultural Research Station, Agricultural Research Center during 2002/2003 and 2003/2004 to study the effect of seeding rates (60 and 80 kg seeds/fed.) and inoculation with free living (Azotobacter) and associative (Azospirillum) N2-fixers in form of single or dual inoculum together with two rates on N-fertilizer (60 and 90 kg N/fed), in addition of treatment received 120 kg N/fed only on growth, yield and yield components of wheat plants (Giza 168) grown in sandy soils. A split plot design with three replications was used. The results of the combined analysis of two growing seasons 2002/2003 and 2003/2004 indicated that:-
1 -Seeding rate of 60 kg seed/fed. significantly increased numbers of tillers/plant, spike length, number of grains/spike, 1000-grain weight, grain yield and total protein (kg/fed.) while, 80 kg seed/fed. significantly increased plant height, number of spikes/m2, straw yield and protein percent.
2 -Results also revealed that no significant differences could be observed due to inoculation with both Azotobacter or Azospirillum on all the tested parameters. However, Azotobacter gave values higher than Azospirillum, but the values didn't reach to the level of significancy. Taking biofertillization with mixed culture of Azotobacter and Azospirillum together with 90 kg N/fed into account, results showed an increase in grain yield by about 2.7 % over mineral N application (120 kg N/fed). Such results indicated that biofertillization could save at least 25% of recommended nitrogen, besides its role in reducing pollution associated with mineral nitrogen application.
3 -The interaction between seeding rate and biofertillization clearly indicated that seed rate of 60 kg N/fed when inoculated with mixture of free associative N2-fixers was superior in achieving yield and yield components, grain yield and protein yield and was more efficient in increasing total N recovery
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| Publication year |
2005
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| Pages |
5527-5538
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| Availability location |
معهد بحوث المحاصيل الحقليه-مركز البحوث-8شالجامعه الجيزة
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| Availability number |
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| Organization Name |
Field Crops Research Institute (FCRI)
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| City |
القاهرة
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| serial title |
جامعة المنصورة للعلوم الزراعية
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| ISSN |
1110-0346
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| Department |
Wheat Research
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| Author(s) from ARC |
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| Publication Type |
Journal
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