برخی خصوصیات زراعی و فیزیولوژیکی جو (Hordeum vulgare L) تحت تاثیر کودهای نیتروژنی و فسفره

نوع مقاله: علمی پژوهشی

نویسندگان

1 استادیار گروه زراعت و اصلاح نباتات، واحد ملکان، دانشگاه آزاد اسلامی، ملکان، ایران

2 استاد گروه زراعت و اصلاح نباتات، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران

3 باشگاه پژوهشگران جوان و نخبگان، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران

چکیده

کاربرد کودهای شیمیایی در دهه های اخیر منجر به افزایش عملکرد گیاهان زراعی شده است. اما، کاربرد آنها در دراز مدت با اثرات زیان­باری بر محیط زیست و حتی عملکرد گیاهان همراه می­ باشد. از این رو تحقیقات به سمت استفاده از کود­های زیستی به جای کودهای شیمیایی سوق داده شده است. هدف از این مطالعه بررسی تأثیر کود­های زیستی نیتروژنه (نیتروکارا، نیتروکسین، ترکیب نیتروکارا+ نیتروکسین و شاهد)، کودهای زیستی فسفره (فسفره بارور2، بیوفسفر، ترکیب فسفره بارور2+ بیوفسفر و شاهد) بر رشد و عملکرد جو می ­باشد. نتایج به دست آمده از این بررسی نشان داد که کاربرد کودهای زیستی فسفره و نیتروژنه اثر معنی­ داری بر صفات ارتفاع، وزن خشک بوته، تعداد پنجه و سنبلچه در واحد سطح، وزن هزار دانه، عملکرد دانه، تعداد دانه در بوته، شاخص سطح برگ و شاخص کلروفیل برگ داشتند. بر اساس نتایج حاصل، کاربرد نیتروکارا، نیتروکسین و ترکیب این دو کود به ­ترتیب افزایش 100، 86 و 110 درصدی را در عملکرد دانه باعث شدند. با کاربرد کودهای زیستی فسفره نیز بیشترین میزان افزایش عملکرد دانه جو مربوط به کاربرد بیوفسفر بود. این تیمار توانست عملکرد دانه را به میزان 50 درصد افزایش دهد.

کلیدواژه‌ها


عنوان مقاله [English]

Some Agronomic and Physiological Traits of Barley (Hordeum Vulgare L. ) as Affected by Biological Nitrogen and Phosphorus Fertilizers

نویسندگان [English]

  • Elnaz Farajzadeh Memari Tabrizi 1
  • Mehrdad Yarnia 2
  • Vahid Ahmadzadeh 3
  • Noushin Farajzadeh Memari Tabrizi 3
1 Assistant Prof., Department of Agronomy and Plant Breeding, Malekan Branch, Islamic Azad University, Malekan, Iran
2 Professor, Department of Agronomy and Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
3 Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran
چکیده [English]

In recent decades, using chemical fertilizers has resulted in increasing the yields of crop plants. However, it has been found that their use in the longrun has damaging effects on both environment and crop yields. Therefore, investigations of using organic fertilizers, instead of chemical fertilizers, have been emphesised. The aim of the present study was to evaluate the effect of nitrogen bio-fertilizers (Nitrokara, Nitroxin, combination of Nitrokara + Nitroxin and control) and phosphate bio-fertilizers (phosphorus fertilized 2, Biophosphorus, combination of phosphorous fertilized 2+ Biophosphorus and control) on agronomic and physiological traits of barley. The results of the study showed that the use of biological phosphorus and nitrogen fertilizers significantly affected plant height, whole plant dry weight, number of tillers and spikelets/m2, 1000 seed weight, grain yield, number of seeds per a plant, the leaf area index and the leaf chlorophyll index. Based on these results it seems that using Nitrokara, Nitroxin and the combination of Nitrokara + Nitroxin increased grain yield by 100, 86, and 110% respectively. It was also revealed that highest increase in grain yield belonged to biophosphorus as compared to other phosphorus treatments. This treatment increased the grain yield by 50 percent.

کلیدواژه‌ها [English]

  • barley
  • Bio-fertilizer phosphorus
  • Grain yield
  • nitrogen
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