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بررسی برخی صفات زراعی ذرت (Zea mays L.) متاثر از شکلهای مس در خاکهای استان آذربایجان شرقی | ||
| دانش کشاورزی وتولید پایدار | ||
| مقاله 10، دوره 27، شماره 2، تابستان 1396، صفحه 145-157 اصل مقاله (509.69 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
عادل ریحانی تبار  ؛ امید کمانگر
| ||
| گروه علوم خاک، دانشکده کشاورزی، دانشگاه تبریز | ||
| چکیده | ||
| مس یکی از عناصر ضروری و کممصرف برای گیاهان است و قابلیت دسترسی آن در خاکهای آهکی کم میباشد. قابلیت دسترسی مس برای گیاهان به توزیع نسبی شکلهای مختلف شیمیایی آن در خاک بستگی دارد که البته تابعی از ویژگیهای خاک است. در این پژوهش گلخانهای، شکلهای مختلف مس کل خاک به روش عصارهگیری دنبالهای در 21 نمونه خاک سطحی استان آذربایجان شرقی با ویژگیهای فیزیکی و شیمیایی متنوع، جزئ بندی شد. بر طبق نتایج حاصله غلظت شکلهای مختلف مس به ترتیب مس باقیمانده (Cu-Res) > مس پیوسته به اکسیدهای آهن بلوری (Cu-CFeOX) > مس پیوسته به اکسیدهای آهن بیشکل (Cu-AFeOX) > مس پیوسته به مواد آلی (Cu-OM) > مس کربناتی (Cu-Car) > مس تبادلی (Cu-Ex) > مس پیوسته به اکسیدهای منگنز (Cu-MnOX) بود. مطالعات همبستگی نشان داد که ماده خشک بخش هوایی و ریشه ذرت، غلظت مس بخش هوایی ذرت و مقدار جذب مس بخش هوایی ذرت با هیچ کدام از شکلهای مس همبستگی معناداری نداشتند. شکلهای Cu-Car، Cu-MnOX، Cu-AFeOX، Cu-Res با غلظت مس بخش ریشه ذرت همبستگی مثبت و معناداری داشتند. همچنین، شکل باقیمانده مس با غلظت و مقدار جذب مس توسط ریشه و بخش هوایی همبستگی معناداری داشت. | ||
| کلیدواژه‌ها | ||
| ذرت؛ شکلهای شیمیایی مس؛ عصارهگیری دنبالهای؛ غلظت؛ مس | ||
| عنوان مقاله [English] | ||
| Study of Some Agronomical Traits of Corn (Zea mays L.) as Affected by Copper Fractions in Soils of East Azerbaijan | ||
| نویسندگان [English] | ||
| Adel Reyhanitabar؛ Omid Kamangar | ||
| چکیده [English] | ||
| Copper (Cu) is a necessary micronutrient for crops and its availability in calcareous soils is low. Phytoavailability of Cu depends on the relative distribution of different chemical Cu forms in soil, which is function of soil properties. In this greenhouse research, total soil Cu fractionated into different forms by sequential extraction procedure in 21 surface soil samples of East Azarbayjan province that varied in physical and chemical properties. According to the results, different Cu fractions concentration were as: Residual copper (Cu-Res) > Crystalline Fe oxides bound (Cu-CFeOX) > amorphous Fe oxides bound (Cu-AFeox) > Oranically bound (Cu-OM) > Carbonates bound (Cu-Car) > soluble +exchangeable (Cu-Ex) > Mn oxide bound (Cu-Mnox). Correlation coefficient showed that the corn shoot dry matter, corn shoot copper concentration and corn shoot copper content hadn’t significant correlation with soil copper forms. Cu-Car, Cu-MnOX, Cu-AFeOX, and Cu-Res had a significant relationship with corn shoot and root copper concentration. | ||
| کلیدواژه‌ها [English] | ||
| Chemical Forms of Copper, Concentration, Copper, Corn, Sequential extraction | ||
| مراجع | ||
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