dc.contributor.author |
Oustan, Shahin |
|
dc.contributor.author |
Asghari, Massood |
|
dc.contributor.author |
Neyshabouri, Mohammad Reza |
|
dc.contributor.author |
Bybordi, Ahmad |
|
dc.date.accessioned |
2016-03-22T14:46:24Z |
|
dc.date.available |
2016-03-22T14:46:24Z |
|
dc.date.issued |
2008 |
|
dc.identifier.citation |
Oustan, S., Asghari, M., Neyshabouri, Mohammad R., Bybordi, A. (2008). Potassium fixation as affected by moisture conditions in some soils of Azerbaijan. International Meeting on Soil Fertility Land Management and Agroclimatology. Special Issue, 619-625. |
tr_TR |
dc.identifier.uri |
http://hdl.handle.net/11607/2734 |
|
dc.description.abstract |
Potassium is the third macronutrient provided in a complete fertilizer. Exhaustive cropping of potassiumdemanding
crops like potato, sunflower and sugar beet leads to depletion of soil non-exchangeable potassium
and subsequent fixation of added potassium. In this study the effects of different soil moisture conditions on
potassium fixation were investigated in some potassium-depleted soils of Azerbaijan province. For this purpose
6 soil samples were selected from among 17 locations where the amounts of boiling nitric acid extractable-K
were considerably lower in cultivated soils compared to the adjacent non-cultivated soils. The amount of
potassium added to the soils (250 mg K kg-1) was equivalent to the amount of depleted K. Results showed that
the amounts of K fixation were significantly (P<0.001) increased (14.5%) after air-drying. There was a
significant (P<0.01) positive relationship between the amount of K fixation and clay content. Three soil samples
with different amounts of K fixation were chosen from among six soil samples for subsequent studies. Early airdrying
of the soils was significantly (P<0.01) caused more K fixation comparing to middle and late air-drying.
According to the results obtained the effect of soil matric potential (-30, -100, -500 kPa) on K fixation was
significant (P<0.001).The highest amount of K fixation was found for -100 kPa. Furthermore, K fixation during
two months of incubation was significantly (P<0.001) elevated with the increase in the number of wettingdrying
cycles (1, 5, 10 and 20 cycles). The amount of K fixation was increased by 23% with wetting-drying
incubation (under 20 cycles) compared to constant field capacity incubation. |
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dc.language.iso |
eng |
tr_TR |
dc.publisher |
Adnan Menderes Üniversitesi Ziraat Fakültesi Dergisi |
tr_TR |
dc.rights |
info:eu-repo/semantics/openAccess |
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dc.subject |
Potassium Fixation |
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dc.subject |
Wetting-Drying Cycles |
tr_TR |
dc.subject |
Soil Matric Potential |
tr_TR |
dc.title |
Potassium fixation as affected by moisture conditions in some soils of Azerbaijan |
tr_TR |
dc.type |
article |
tr_TR |
dc.relation.journal |
International Meeting on Soil Fertility Land Management and Agroclimatology |
tr_TR |
dc.contributor.department |
University of Tabriz, Faculty of Agriculture,Soil Science Department, Tabriz |
tr_TR |
dc.identifier.issue |
Special Issue |
tr_TR |
dc.identifier.startpage |
619 |
tr_TR |
dc.identifier.endpage |
625 |
tr_TR |