PHOSPHOROUS FRACTIONATION OF PADDY FIELDS AND THEIR RELATIONS WITH PHYSICAL AND CHEMICAL PROPERTIES OF SOILS (CASE STUDY: SOME-E-SARA CITY, GUILAN PROVINCE)

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MAHMOUD SOLTANI SH.; DAVATGAR N.; KAVOOSI M.; DARIGH GOFTAR F.

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Journal: Journal of Water and Soil Conservation Year:2011 | Volume:18 | Issue:2 Page(s): 159-176

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Title

PHOSPHOROUS FRACTIONATION OF PADDY FIELDS AND THEIR RELATIONS WITH PHYSICAL AND CHEMICAL PROPERTIES OF SOILS (CASE STUDY: SOME-E-SARA CITY, GUILAN PROVINCE)

Author(s)

MAHMOUD SOLTANI SH. | DAVATGAR N. | KAVOOSI M. | DARIGH GOFTAR F. | Issue Writer Certificate

Keywords

PHOSPHORUS FRACTIONATIONQ2

PADDY FIELDSQ2

GUILANQ3

SOIL PEROPERTIESQ2

Abstract

Long-term effects of Rice (Oryza Sativa L.) cultivation with different management on soil P fraction are important to understanding from soil nutritional and environment point of view.Soil P fraction gives an idea about the soil supplying capacity to plants. This experiment was conducted to evaluate different soil P fractionation under paddy fileds condition and their relation with soil properties at rice root depth (0-30 cm). Soil samples were collected from 103 PADDY FIELDS at Some-e-sara city in GUILAN provience with grids of 2x2 km. Soils were analyzed to determine of their characters (pH, CEC, T.N.V, Clay, O.C) and sequentialy extracted to determine organic and inorganic P fractions.The results showed total phosphorus concentration range between 218-1677.5 (mean of 563), inorganic phosphorus 60-1427.5(mean of 353 mg/kgsoil) and organic phosphorus with range of 25-525 (mean of 210). The persent of inorganic phosphorus were observed 62.6% of total phosphorus in comparison of organic phosphorus, 37.4%. Inorganic PHOSPHORUS FRACTIONATIONs in study area were Ca-p (mean=226), Al-p (mean=15.63), Fe-p (mean=220.4) and soluble and weak bounded phosphorus (Sol-p) (mean= 0.655 mg/kg soil), whereas the available phosphorus with mean of 29.02 mg/kg soil was more than Iranian PADDY FIELDS critical level. The Ca-p with pH, TNV, and OC%, Fe-p with pH, TNV, OC%, Clay content and CEC, Al-p with OC% and CEC, Sol-p with OC%, organic phosphorus with CEC, OC%, pH, TNV and Clay content available phosphorus with CEC, TNV and OC% showed significant correlation, respectively. The linear multiple regression equations the available phosphorus was affected from Al-p more than other fractions in rice fields.

Cites

THE USE OF A HYBRID FUZZY-AHP SYSTEM ON THE EVALUATION AND MAPPING OF SOIL FERTILITY

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APA: Copy

MAHMOUD SOLTANI, SH., DAVATGAR, N., KAVOOSI, M., & DARIGH GOFTAR, F.. (2011). PHOSPHOROUS FRACTIONATION OF PADDY FIELDS AND THEIR RELATIONS WITH PHYSICAL AND CHEMICAL PROPERTIES OF SOILS (CASE STUDY: SOME-E-SARA CITY, GUILAN PROVINCE). JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 18(2), 159-176. SID. https://sid.ir/paper/156009/en

Vancouver: Copy

MAHMOUD SOLTANI SH., DAVATGAR N., KAVOOSI M., DARIGH GOFTAR F.. PHOSPHOROUS FRACTIONATION OF PADDY FIELDS AND THEIR RELATIONS WITH PHYSICAL AND CHEMICAL PROPERTIES OF SOILS (CASE STUDY: SOME-E-SARA CITY, GUILAN PROVINCE). JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2011;18(2):159-176. Available from: https://sid.ir/paper/156009/en

IEEE: Copy

SH. MAHMOUD SOLTANI, N. DAVATGAR, M. KAVOOSI, and F. DARIGH GOFTAR, “PHOSPHOROUS FRACTIONATION OF PADDY FIELDS AND THEIR RELATIONS WITH PHYSICAL AND CHEMICAL PROPERTIES OF SOILS (CASE STUDY: SOME-E-SARA CITY, GUILAN PROVINCE),” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 18, no. 2, pp. 159–176, 2011, [Online]. Available: https://sid.ir/paper/156009/en

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