Volume 16, Issue 62 (Winte - 2013 2013)                   jwss 2013, 16(62): 1-10 | Back to browse issues page

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H. Kheirabad, A. H. Khoshgoftarmanesh, Z. Khanmohamadi. The Effects of Some Soil Properties on Zn Availability for Corn in Certain Calcareous Soils in Isfahan Province. jwss 2013; 16 (62) :1-10
URL: http://jstnar.iut.ac.ir/article-1-2489-en.html
, kheirabadi@ymail.com
Abstract:   (14676 Views)
Due to soil and plant zinc (Zn) deficiency and its effect on reducing yield and quality of agricultural products, application of Zn fertilizers has been intensified in recent years. To achieve optimum fertilizer management, knowledge of factors affecting Zn availability in soil and its uptake by plant is required. Therefore, this study was carried out to investigate the effect of certain soil physiochemical properties on Zn availability in soil and its uptake by corn. The experiment was laid out in a completely randomized design with factorial combination and three replicates in the research greenhouse of Isfahan University of Technology, in winter 2009. In this greenhouse experiment, 11 soil series were exposed to two Zn levels (0 and 15 mg Zn kg−1 in the form of zinc sulfate). The results indicated that Zn application significantly increased the dry matter weight and shoot and root Zn concentration of corn, although the magnitude of this increase varied depending on the soil type. There was no significant correlation between the DTPA-extractable Zn and the uptake of this nutrient element by corn. There was a negative significant correlation (P < 0.05) between the equivalent calcium carbonate content and available P with the DTPA-extractable Zn. A significant linear relationship (R2 = 0.31) was found between the buffer capacity of soil for Zn and clay content. According to the results obtained from the stepwise regression analysis, the DTPA-extractable Zn and buffer capacity of soil for Zn were not correlated with other measured soil properties.
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Type of Study: Research | Subject: Ggeneral
Received: 2013/03/13 | Published: 2013/03/15

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