COMPARISON BETWEEN POTASSIUM AND AMMONIUM FIXATION BY CLAYS IN DIFFERENT AGRICULTURE SYSTEMS PRINT

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PISHGIR M.; JAFARI S.

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Journal: Journal of Water and Soil Science Year:2014 | Volume:18 | Issue:69 Page(s): 237-249

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Information Journal Paper

Title

COMPARISON BETWEEN POTASSIUM AND AMMONIUM FIXATION BY CLAYS IN DIFFERENT AGRICULTURE SYSTEMS PRINT

Author(s)

PISHGIR M. | JAFARI S. | Issue Writer Certificate

Keywords

CLAY MINERALSQ2

FIXATIONQ2

POTASSIUMQ2

AMMONIUM AND CULTIVATIONQ2

Abstract

This study was done to compare K+ and NH4+ FIXATION in different agricultural systems in Khuzestan province. Soil samples were collected from Shushtar and Abadan. Samples were collected from depths of 0-30 and 30-60 cm in sugarcane, multi cropping, palm and uncultivated land. Then, 0-50-100-200-400-600-800-1000 mg kg-1 K+ or NH4+ concentrations were added to 0.5 gram of clay separated from these soil samples. These clay samples were kept for 24 h at room temperature. Then, they were extracted with 0.5 M magnesium acetate, and K+ and NH4+ were determined by flame photometer and micro diffusion methods, respectively. Fixed K+ or NH4+ was determined from added and extracted cations. Also, XRD studies were done in some samples. Kaolinite, palygoreskite, illite, chlorite, smectite and quartz were identified by XJRD. Statistical analysis showed that K+ or NH4+ FIXATION and rate were increased by increasing the concentration. Maximum K+ or NH4+ were fixed in surface layer’s clay in Shushtar multi cropping and Abadan Palm cultivation. The results showed that K+ and NH4+ FIXATION were increased by increasing the concentration. But, under increasing concentration for a cation, FIXATION decreased for others and vice versa. NH4+ FIXATION was more than K+. This may be due to smectite clay mineral in these samples. Smectite group tend to cause NH4+ FIXATION more than K+. These results can be applied for K+ or NH4+ fertilizers management.

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APA: Copy

PISHGIR, M., & JAFARI, S.. (2014). COMPARISON BETWEEN POTASSIUM AND AMMONIUM FIXATION BY CLAYS IN DIFFERENT AGRICULTURE SYSTEMS PRINT. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 18(69), 237-249. SID. https://sid.ir/paper/15071/en

Vancouver: Copy

PISHGIR M., JAFARI S.. COMPARISON BETWEEN POTASSIUM AND AMMONIUM FIXATION BY CLAYS IN DIFFERENT AGRICULTURE SYSTEMS PRINT. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2014;18(69):237-249. Available from: https://sid.ir/paper/15071/en

IEEE: Copy

M. PISHGIR, and S. JAFARI, “COMPARISON BETWEEN POTASSIUM AND AMMONIUM FIXATION BY CLAYS IN DIFFERENT AGRICULTURE SYSTEMS PRINT,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 18, no. 69, pp. 237–249, 2014, [Online]. Available: https://sid.ir/paper/15071/en

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