بررسی وضعیت عنصرهای غذایی در تاکستان‌های شهرستان خدابنده با کاربرد شاخص‌های تغذیه‌ای

نوع مقاله : مقاله پژوهشی

نویسنده

استادیار، بخش تحقیقات خاک و آب، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان زنجان، سازمان تحقیقات، آموزش و ترویج کشاورزی، زنجان، ایران

چکیده

با توجه به افزایش نیاز و تقاضا به مواد غذایی بیشتر و کاهش منابع آب‌وخاک، حفظ اراضی و ارتقا کمی و کیفی عملکرد گیاهان در واحد سطح با تأمین مواد موردنیاز خاک و گیاه تحقق می­یابد. شناسایی وضعیت عنصرهای غذایی در گیاهان، راه­کاری مؤثر در تعیین الگوی مصرفی عنصرهای غذایی و افزایش عملکرد و بهبود کیفیت محصولات کشاورزی است. ازاین‌رو در این پژوهش با استفاده از نتایج شاخص­های DOP، DRIS و CND به تجزیه‌وتحلیل وضعیت عنصرهای غذایی در نمونه­های برگ تاکستان­های شهرستان خدابنده در استان زنجان پرداخته شد. نمونه­های برگ از 75 تاکستان گردآوری و تجزیه­های شیمیایی عنصرهای نیتروژن، فسفر، پتاسیم، منگنز، مس، روی و بُر و ویژگی‌های مربوط به عملکرد انجام شد. معیار­های بهینه با تقسیم تاکستان­ها به دو گروه با عملکرد بالا و پایین تعیین شد. نتایج نشان داد بیشتر تاکستان­های شهرستان خدابنده به‌طور میانگین از لحاظ میزان عنصر پتاسیم، روی و مس با کمبود روبه‌رو هستند. بااین‌حال عنصرهای نیتروژن، فسفر، بُر و منگنز در منطقه بیش­بود داشتند. همچنین نتایج هر یک از شاخص­های DOP، DRIS و CND با هم مقایسه شد. بنابراین نتایج میزان شاخص­ها در برخی از عنصرها تفاوت داشتند. هر سه شاخص DOP، DRIS و CND کمبود عنصر روی را در بیشتر تاکستان­ها تشخیص دادند. به‌طورکلی شاخص­های DRIS و CND روند تغییرپذیری عنصرهای غذایی را نسبت به شاخص DOP بهتر نشان دادند.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of vineyards nutritional status using nutrition indices in Khodabande region

نویسنده [English]

  • Mehdi Taheri
Assistant Professor, Soil and Water Research Department, Zanjan Agriculture and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Zanjan, Iran
چکیده [English]

Considering the increased demand for more food, and reduction of reduce soil and water resources, protecting of land and improving the quality and quantity of yield per unit area is feasible with supplying soil and plant with nutrients needed. Diagnosis of plant nutrient status is an effective way to determine the pattern of nutrient intake and increase of the yield and improvement of the quality of agricultural products. Therefore, in this study using the DOP, DRIS and CND indices, nutrient status in leaf samples of vineyards in Khodabande from Zanjan Province were analyzed. Leaf samples were collected from 75 vineyards and then were done chemical analysis of N, K, P, Mn, Cu, Zn and B and the characteristics of yield. Optimization norms were determined by dividing vineyards into two groups of high and low performances. The results showed that most vineyards of Khodabande had K, Zn and Cu deficiencies. However, in this area, N, P, B and Mn are more than optimum norms. Also the results of DOP, DRIS and CND were compared with each other. Values of indices in some of the nutrients were different. Based on three Indices of DOP, DRIS and CND, Zn had deficiency in the most vineyards. DRIS and CND showed a trend of changes in nutrients better than DOP.

کلیدواژه‌ها [English]

  • CND
  • DOP
  • DRIS
  • grapes
  • leaf analysis

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سابقه مقاله

  • تاریخ دریافت: 11 خرداد 1394
  • تاریخ بازنگری: 01 شهریور 1394
  • تاریخ پذیرش: 10 شهریور 1394

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