FEASIBILITY OF THE APPLICATION OF PHOSPHORUS BUFFERING CAPACITY (PBC) FOR ESTIMATION OF CORN AVAILABLE PHOSPHORUS IN SOME CALCAREOUS SOILS

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MAGHSOODI M.R.; REYHANITABAR A.; NAJAFI N.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:4 | Issue:4 Page(s): 81-103

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Title

FEASIBILITY OF THE APPLICATION OF PHOSPHORUS BUFFERING CAPACITY (PBC) FOR ESTIMATION OF CORN AVAILABLE PHOSPHORUS IN SOME CALCAREOUS SOILS

Author(s)

MAGHSOODI M.R. | REYHANITABAR A. | NAJAFI N. | Issue Writer Certificate

Keywords

BUFFERING CAPACITYQ2

CORNQ2

CRITICAL LEVELQ2

PHOSPHORUSQ2

Abstract

Phosphorus is one of the nutritional elements that has an important effect on the quantity and quality of CORN plant. Knowledge about the P CRITICAL LEVEL and plant response to application of P can effectively help with the proper use of this element. Therfore, in this study, P CRITICAL LEVEL for CORN plant (Zea mays L.) was determined using PBC in 25 combined soilsamples from different fields of East Azerbaijan province. To calculate the PBC, current soil P test methods such Olsen, Colwel, Soltanpur and Schowab, Kelna2 and iron impregnated strips as a quantity factor (Q) and the methods of soluble P measurements such as distilled water, calcium chloride and Paauw method as an intensity factor (I) was used. According to the results, the method of PBC (Olsen-P/ Paauw-P) compared to other methods for calculating PBC, was the best method to predict of P uptake by CORN plant. The high correlation of PBC (Olsen-P/ Paauw-P) data with the shoot content of PHOSPHORUS was confirmed. PBC linear correlation with shoot P content was separated in two positive and negative parts and the positive value of the correlation was 0.91** and negative value was -0.89**. CRITICAL LEVEL of soil P for CORN with PBC method based on 90% relative dry matter was determined as 2.2, 2.44 and 1.19 by using graphical Cate-Nelson, Cate-Nelson analysis of variance and Mitscherlich-Bray methods, respectively. Mitscherlich-Bray equation coefficient C1 and C, for PBC, were 0.08411 and 0.0122 respectively.

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APA: Copy

MAGHSOODI, M.R., REYHANITABAR, A., & NAJAFI, N.. (2015). FEASIBILITY OF THE APPLICATION OF PHOSPHORUS BUFFERING CAPACITY (PBC) FOR ESTIMATION OF CORN AVAILABLE PHOSPHORUS IN SOME CALCAREOUS SOILS. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 4(4), 81-103. SID. https://sid.ir/paper/209885/en

Vancouver: Copy

MAGHSOODI M.R., REYHANITABAR A., NAJAFI N.. FEASIBILITY OF THE APPLICATION OF PHOSPHORUS BUFFERING CAPACITY (PBC) FOR ESTIMATION OF CORN AVAILABLE PHOSPHORUS IN SOME CALCAREOUS SOILS. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;4(4):81-103. Available from: https://sid.ir/paper/209885/en

IEEE: Copy

M.R. MAGHSOODI, A. REYHANITABAR, and N. NAJAFI, “FEASIBILITY OF THE APPLICATION OF PHOSPHORUS BUFFERING CAPACITY (PBC) FOR ESTIMATION OF CORN AVAILABLE PHOSPHORUS IN SOME CALCAREOUS SOILS,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 4, no. 4, pp. 81–103, 2015, [Online]. Available: https://sid.ir/paper/209885/en

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