مروری بر روش های تفسیر نتایج تجزیه گیاه و معرفی روش طیف سنجی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم خاک دانشکده کشاورزی دانشگاه ارومیه

2 دانشگاه ارومیه

10.30466/asr.2025.55539.1859

چکیده

افزایش عملکرد و بهبود کیفیت محصول‌های‌ کشاورزی نقش مهمی در امنیت غذایی کشور دارد. ارزیابی حاصلخیزی خاک و توصیه کودی بهینه، نیازمند تشخیص وضعیت تغذیه‌ای گیاهان است. در این میان تجزیه برگ و تفسیر نتایج آن، روش مناسبی برای تعیین تعادل تغذیه‌ای باغات و مزارع کشاورزی است. روش‌های مختلفی برای تفسیر نتایج تجزیه برگ وجود دارد که این مقاله به بررسی برخی از این روش‌ها شامل روش سطح بحرانی (CL)، روش تلفیقی تشخیص و توصیه (DRIS)، روش انحراف از حد بهینه (DOP)، روش تشخیص ترکیبی عنصر‌های غذایی (CND) و معرفی روش تصویربرداری و طیف‌سنجی، پرداخته است. نتایج بررسی‌ها نشان داد هر یک از این روش‌ها دارای مزایا و معایبی هستند. اگر چه روش DRIS کمبودهای روش CL را برطرف می‌کند ولی روش DOP مدل ساده و آسان‌تری در مقایسه با روش جامع DRIS در تفسیر نتایج تجزیه برگی است. روش CND نیز به دلیل لحاظ نمودن اثرهای متقابل کلیه عنصرها جامعیت بیشتری نسبت به روش‌های دیگر دارد. با پیشرفت تکنولوژی، روش تصویربرداری و طیف‌سنجی با نور مرئی و مادون قرمز نزدیک (Vis-NIR) برای تعیین وضعیت تغذیه‌ای گیاهان و جلوگیری از کاهش عملکرد محصول مورد استفاده قرار گرفته است. این روش به‌دلیل عدم نیاز به تجزیه شیمیایی، ارزان، سریع و غیرمخرب بوده و در مساحت‌های بزرگ و مدیریت‌های کلان کاربرد دارد. به‌طور کلی انتخاب روش مناسب برای تعیین وضعیت تغذیه‌ای گیاهان زراعی و باغات، علاوه بر افزایش کارایی کودهای مصرفی و بهبود عملکرد محصول‌های کشاورزی، می‌تواند به امنیت غذایی کمک نماید.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

A Review on Interpretation Methods of the Results of Plant Analysis and Introduction of Spectroscopy Method

نویسندگان [English]

  • Mahrokh Sharifmand 1
  • Ebrahim Sepehr 2
1 Urmia University
2 Urmia University
چکیده [English]

Increasing the yield and improving the quality of agricultural crops play an important role in the country's food security. Assessment of soil fertility and optimal fertilizer recommendation requires the diagnosis of the nutritional status of plants. Meanwhile, leaf analysis and interpretation of its results is a suitable method to determine the nutritional balance of orchards and agricultural fields. There are different methods for the interpretation of leaf analysis results that this article investigated some of these methods, including the critical level (CL), diagnosis and recommendation integrated system (DRIS), deviation from optimum percentage (DOP), compositional nutrient diagnosis (CND), and introducing the imaging and spectroscopy method. The study results showed that each of these methods has advantages and disadvantages. Although the DRIS resolves the defects of the CL method, DOP is a simpler and easier method compared to the DRIS comprehensive method in interpreting the results of leaf analysis. The CND method is also more comprehensive than other methods due to considering the mutual effects of all nutrients. Due to the advancement of technology, imaging and spectroscopic methods in the visible and near-infrared regions (Vis-NIR) are used for determination of the plants nutritional status and prevent reduction of product yield. This method is inexpensive, fast, and non-destructive due to no need for chemical analysis and is applicable to large areas and large-scale management. Generally, choosing a suitable method to determine the nutritional status of crops and orchards can contribute to food security, in addition to increasing the efficiency of the fertilizers used and improving the yield of agricultural products.

کلیدواژه‌ها [English]

  • Leaf analysis
  • Plant nutrition
  • Spectrometry
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