EVALUATION CHEMICAL EXTRACTANTS IN DETERMINATION OF AVAILABLE POTASSIUM FOR PISTACHIO IN CALCAREOUS SOILS OF RAFSANJAN

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ZADEHPARIZI SAMANEH; TAJABADI POUR AHMAD; ESFANDIARPOOR ISA

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2017 | Volume:18 | Issue:4 Page(s): 935-947

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Title

EVALUATION CHEMICAL EXTRACTANTS IN DETERMINATION OF AVAILABLE POTASSIUM FOR PISTACHIO IN CALCAREOUS SOILS OF RAFSANJAN

Author(s)

ZADEHPARIZI SAMANEH | TAJABADI POUR AHMAD | ESFANDIARPOOR ISA | Issue Writer Certificate

Keywords

AMMONIUM ACETATEQ2

CONCENTRATIONQ2

GROWTHQ2

MEHLICHQ2

SOIL CHARACTERISTICSQ1

UPTAKEQ2

Abstract

Potassium is a very important plant nutrient not only because of its large demand, but also because of its important physiological and biological functions in plant. Therefore, understanding of soil potassium status can lead to better use of potassium fertilizers. This study was done to evaluate 10 extractants for estimating available potassium for pistachio in 28 calcareous soils of Rafsanjan in a completely randomized design with three replications in greenhouse conditions in Vali-e-Asr university of Rafsanjan in 2014. Potassium was extracted by 1 M NH4OAc, 0.01 M CaCl2,2 M NaCl, 0.1 M HNO3, boiling 1 M HNO3, distilled water, 1M NaOAc, MEHLICH1, MEHLICH3 and DTPA-NH4HcO3.The results showed that extraction of K decreased in the order: boiling 1 M HNO3> 2 M NaCl > 1M NaOAc > MEHLICH3> 1 M NH4OAc > 0.1 M HNO3> DTPA-NH4HcO3> MEHLICH1> 0.01 M CaCl2> distilled water. 1M NaOAc was selected as the most suitable extractant for potassium in calcareous soils of Rafsanjan on its high correlation with leaf and shoot K CONCENTRATION. Multiple regression equations indicated that potassium extracted from the soil dependent to different physical and chemical properties of soil such as amount of clay and cation exchange capacity.

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APA: Copy

ZADEHPARIZI, SAMANEH, TAJABADI POUR, AHMAD, & ESFANDIARPOOR, ISA. (2017). EVALUATION CHEMICAL EXTRACTANTS IN DETERMINATION OF AVAILABLE POTASSIUM FOR PISTACHIO IN CALCAREOUS SOILS OF RAFSANJAN. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 18(4 ), 935-947. SID. https://sid.ir/paper/209626/en

Vancouver: Copy

ZADEHPARIZI SAMANEH, TAJABADI POUR AHMAD, ESFANDIARPOOR ISA. EVALUATION CHEMICAL EXTRACTANTS IN DETERMINATION OF AVAILABLE POTASSIUM FOR PISTACHIO IN CALCAREOUS SOILS OF RAFSANJAN. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2017;18(4 ):935-947. Available from: https://sid.ir/paper/209626/en

IEEE: Copy

SAMANEH ZADEHPARIZI, AHMAD TAJABADI POUR, and ISA ESFANDIARPOOR, “EVALUATION CHEMICAL EXTRACTANTS IN DETERMINATION OF AVAILABLE POTASSIUM FOR PISTACHIO IN CALCAREOUS SOILS OF RAFSANJAN,” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 18, no. 4 , pp. 935–947, 2017, [Online]. Available: https://sid.ir/paper/209626/en

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