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Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms

Year 2020, Volume: 4 Issue: 2, 215 - 228, 30.12.2020

Abstract

Phosphorus is one of the nutrient elements in soils having difficulties in the managements with some environmental consequences. Strong reactions with soil components such as precipitation with Fe (iron) and Al (aluminium) in acid soils and Ca (calcium) in alkaline soils rapidly reduce phosphorus availability to plants in soil solution. Phosphorus fertilizer suggestions relying solely on soil analysis have problematic aspects due to differences in phosphorus adsorption characteristics of soils. Thus, total of 71 surface layer (0-20 cm) soil samples were taken from 20 series of Atabey Plain, Isparta. Phosphorus adsorption isotherms of the soils were determined with the batch sorption technique by equilibrating 1.00 g soil samples with 20 mL of 0, 5, 10, 20, 30, 40, 60, and 80 mg P L-1 in 0.01 M CaCl2 background solution. The conformation of the data to Freundlich model was tested by regression analysis. Fertilizer requirement (FR) of soils calculated from Olsen P and equilibrium concentrations of 0.2 and 0.11 mg L-1 of the isotherms. Paired-t test revealed that FR0.2 values were significantly different than either FR calculated from Olsen P or FR0.11. The current plant cover at soil sampling had an influence the calculated FR values and adsorption isotherm parameters. In general, negative fertilizer requirements were due to the agricultural lands with high fertilizer input history such as fruit orchards. It can be concluded that using adsorption isotherms, which consider soil P buffering capacity and P input management background, for calculating the P fertilizer requirement is suggested for environmentally and economically feasible farming in the region.

Supporting Institution

Süleyman Demirel Üniversitesi

Project Number

4363-YL2-15

Thanks

This study was financially supported project by the Scientific Research Foundation of Süleyman Demirel University with the project number of 4363-YL2-15.

References

  • Adetunji, M.T. (1997) Phosphorus sorption capacity of low activity clay soils of south western Nigeria and its usefulness in evaluating P requirement of rice. Nutrient Cycling in Agroecosystems, 4(3), doi: 181-188. doi:10.1007/BF01986273.
  • Afif, E., Matar, A., Torrent, J. (1993) Availability of phosphate applied to calcareous soils of West Asia and North Africa. Soil Science Society of America Journal, 57, 756–760.
  • Akgul, M., Basayigit, L., Ucar, Y., Mujdeci, M. (2001) Soils of Atabey plain. Suleyman Demirel University Publications, Isparta (in Turkish).
  • Akinremi, O.O., Cho, C.M. (1991a) Phosphate and accompanying cation transport in a calcareous cation-exchange resin system. Soil Science Society of America Journal, 55, 694–959.
  • Akinremi, O.O., Cho, C.M. (1991b): Phosphate transport in calcium saturated system: ii. Experimental result in a model system. Soil Science Society of America Journal, 55, 1282–1287.
  • Brady, N.C. (1990) The nature and properties of soils. Macmillan, New York.
  • Beckwith, R.S. (1965) Sorbed phosphate at standard supernatant concentration as an estimate of the phosphate needs of soils. Australian Journal of Experimental Agriculture and Animal Husbandry, 5, 52–58.
  • Berkman, E.T., Reise, S.P. (2012) A conceptual guide to statistics using SPSS. Sage Publications, London
  • Bertrant, I., Holloway, R. E., Armstrong, R.D., McLaughlin, M.J. (2003) Chemical characteristics of phosphorus in alkaline soils from southern Australia. Australian Journal of Soil Research, 41, 61-76. doi: 10.1071/SR02021.
  • Delgado, A., Torrent, J. (2000) Phosphorus forms and desorption patterns in heavily fertilized calcareous and limed soils. Soil Science Society of America Journal, 64, 2031–2037. doi: 10.2136/sssaj2000.6462031x
  • Delgado, A., Uceda, I., Andreu, L., Kassem, S. (2002) Fertilizer phosphorus recovery from gypsum amended reclaimed calcareous marsh soils. Arid Land Research and Management, 16, 319-334. doi: 10.1080/15324980290000421.
  • Duffera, M., Dobarge, W.P. (1999) Soil characteristics and management effects on phosphorus sorption by highland plateau soils of Ethiopia. Soil Science Society of America Journal, 63, 1455-1462. doi: 10.2136/sssaj1999.6351455x.
  • Durgun, B. (2016) Determination of zinc fractions in soil series of Atabey plain. MSc thesis, Suleyman Demirel University (in Turkish).
  • Fox, R.L., Kamprath, E.J. (1970) Phosphate sorption isotherm for evaluating the phosphate requirement of soils. Soil Science Society of American Proceedings, 34, 902–907.
  • Fox, R.L. (1981) External phosphorus requirement of crops. In: Stelly, M. et al (eds) Chemistry in the soil environment. American Society of Agronomy, Madison, pp 223–239.
  • Gee G, Bauder J (1986). Particle-size analysis. In: Klute A (ed) Methods of soil analysis, physical and mineralogical methods. 2nd edn, SSSA Madison, Wisconsin, pp 383–409.
  • Grant, C., Bittman, S., Montreal, M., Plenchette, C., Morel, C. (2005) Soil and fertilizer phosphorus: Effect on plant P supply and mycorrhizal development. Canadian Journal Plant Sciences, 85, 3-14. doi: 10.4141/P03-182 .
  • Huang, Q.N. (1998) Properties of phosphorus adsorption and desorption in red soil under a stand of Chinese fir in Fujian. Journal of Nanjing Forestry University, 22,39-44.
  • Hussein, A., Murtaza, G., Ghafoor, A., Mehdi, S.M., Sabir, M. (2010) Assessment of phosphorus requirements of wheat on different textured alluvial soils through Freundlich type equations. Communications in Soil Science and Plant Analysis, 41(20), 2413–2431. Doi:10.1080/00103624.2010.511373
  • Jackman, J.M., Jones, R.C., Yost, R.S., Babock, C.J. (1997) Rietveld estimates of mineral percentages to predict phosphorous sorption by selected Hawaiian soils. Soil Science Society of America Journal, 61, 618–629.
  • Jalali, M. (2007) Phosphorus status and sorption characteristics of some calcareous soils of Hamadan, Western Iran. Environmental Geology, 53, 365–374. doi: 10.1007/s00254-007-0652-7.
  • Jaszberenyi, I., Loch, J. 1996. Soil phosphate adsorption and desorption in 0.01M calcium chloride electrolyte. Communications in Soil Science and Plant Analysis, 27, 1211-1225. doi: 10.1080/00103629609369627.
  • Kumar, M. (2015) Phosphate requirement of acidic soils in Northeast India: A reappraisal based on phosphate sorption isotherms. National Academy Science Letters, 38(5), 383–386.
  • Kuo, S. (1996) Phosphorus. In: Sparks DL, Page AI, Helmke PA, et al. (eds) Chemical methods of soil analysis, Part 3, SSSA/ASA, Madison, pp, 869-919.
  • Leytem, A.B., Mikkelsen, R.L. (2005). The nature of phosphorus in calcareous soils. Better Crops 89:11-13.
  • Lindsay, W.L. (1979) Chemical equilibria in soils. JohnWiley & Sons, New York.
  • Lindsay, W.L. (2001) Chemical equilibria in Soils. The Blackburn Press, USA.
  • Memon, K.S., Puno, H.K., Fox, R.L. (1991) Phosphate sorption approach for determining phosphorus requirements of wheat in calcareous soils. Fertilzer Research, 28, 67–72. doi: 10.1007/BF01048857.
  • Mihoub, A., Bouhoun, M.D., Saker, M.L. (2016) Phosphorus adsorption isotherm: A key aspect for effective use and environmentally friendly management of phosphorus fertilizers in calcareous soils. Communications in Soil Science and Plant Analysis, 47(16), 1920-1929. doi: 10.1080/00103624.2016.1206923.
  • Moradi, N., Sadaghiani, M.H.R., Sepehr, E., Mandoulakani, B.A. (2012) Effects of low-molecular-weight organic acids on phosphorus sorption characteristics in some calcareous soils. Turkish Journal of Agriculture and Forestry, 36, 459-468. 10.3906/tar-1106-38.
  • Murphy, J., Riley, J.P. (1962) A modified single solution method for the determination of phosphate in natural waters. Analytica Chimica Acta, 27, 31-36.
  • Parat, M.O., Anand-Apte, B., Fox, L.P. (2003) Differential caveolin-1 polarization in endothelial cells during migration in two and three dimensions. Molecular Biology of the Cell, 14(8), 3156-3168. doi: 10.1091/mbc.E02-11-0761
  • Plenchette, C., Morel, C. (1996) External phosphorus requirement of mycorrhizal and non-mycorrhizal barley and soybean plants. Biology and Fertility of Soils, 21, 303-308. doi: 10.1007/BF00334907
  • Rashid, M., Iqbal, M. (2011) Response of sorghum (Sorghum bicolor L.) fodder to phosphorus fertilizer on torripsamment soil. Journal of Animal and Plant Sciences, 21, 220-225.
  • Rashid, M., Iqbal, M. (2012) Effect of phosphorus fertilizer on the yield and quality of maize (Zea Mays L) fodder on clay loam soil. Journal of Animal and Plant Sciences, 22, 199-203.
  • Roy, A.C., De Datta, S.K. (1985) Phosphate Adsroption Isotherms for Evaluating Phosphorus Requirement of Wetland Rice Soils. Plant and Soil, 86(2), 185-196.
  • Shuman, L.M. (1985) Fractionation method for soil microelements. Soil Science, 140(1), 11-22.
  • Singh, B., Gilkes, R.J. (1991) Phosphorus sorption in relation to soil properties for the major soil types of south-western Australia. Australian Journal of Soil Research, 29(5), 603 – 618.
  • Sparks, D.L. (1996) Methods of soil analysis. Part 3. Chemical Properties. SSSA/ASA, Wisconsin.
  • Taghipour, M., Jalali, M., (2013). Effect of low-molecular-weight organic acids on kinetics release and fractionation of phosphorus in some calcareous soils of western Iran. Environmental Monitoring and Assessment, 185(7), 5471-5482. doi: 10.1007/s10661-012-2960-y.
  • Tan, K.H. (2011) Principles of soil chemistry. 4th edn, CRC Press, Boca Raton.
  • Tiessen, H., Stewart, J.W.B., Cole, C.V. (1984) Pathway transformation in soils of differing pedogenesis. Soil Science Society of America Journal, 48, 853–858.
  • Tunesi, S., Poggi, V., Gessa, C. (1999) Phosphate adsorption and precipitation in calcareous soils: the role of calcium ions in solution and carbonate minerals. Nutrient Cycling in Agroecosystems, 53, 219–227.
  • Umoh, F.O., Osodeke, V.E., Edem, I.D., Effiong, G.S. (2014) Application of Langmuir and Freundlich models in phosphate sorption studies in soil of contrasting parent materials in south-eastern Nigeria. Library Journal, 1, e989. doi: 10.4236/oalib.1100989.
  • Uygur, V. (2009) Phosphate sorption in calcareous Soils: The role of iron oxide and carbonates. Asian Journal of Chemistry, 21(4), 3001-3009.
  • Uygur, V., Karabatak, I. (2009) The effect of organic amendments on mineral phosphate fractions in calcareous soils. Journal of Plant Nutrition and Soil Science, 172, 336-345. doi: 10.1002/jpln.200700326.
  • Veith, J.A., Sposito, G. (1977) On the use of Langmuir equation in the interpretation of adsorption phenomena. Soil Science Society of America Journal, 41, 697-702.
  • Walker, T., Syers, J. (1976) The fate of phosphorus during pedogenesis. Geoderma, 15, 1–19.
  • Wang, X.J.M., Jackman, R.S., Yost, R.S., Linquist, B.A. (2000) Predicting soil phosphorous buffer coefficients using potential sorption site density and soil aggregation. Soil Science Society of America Journal, 64, 240–246.
  • Wang, Y.Z., Hu, B.Q., Yan, Y. (2016) Effects of low molecular weight organic acids on phosphorus adsorption characteristics in a black clay soil in northeast China. Fresenius Environmental Bulletin, 25, 517-524. doi: 10.1007/s10661-011-2422-y.
  • Ylihalla, M. (1991). Phosphate adsorption characteristics of 2 soils responding differently to P-fertilization. Journal of Agricultural Science in Finland, 63, 363-369.
Year 2020, Volume: 4 Issue: 2, 215 - 228, 30.12.2020

Abstract

Project Number

4363-YL2-15

References

  • Adetunji, M.T. (1997) Phosphorus sorption capacity of low activity clay soils of south western Nigeria and its usefulness in evaluating P requirement of rice. Nutrient Cycling in Agroecosystems, 4(3), doi: 181-188. doi:10.1007/BF01986273.
  • Afif, E., Matar, A., Torrent, J. (1993) Availability of phosphate applied to calcareous soils of West Asia and North Africa. Soil Science Society of America Journal, 57, 756–760.
  • Akgul, M., Basayigit, L., Ucar, Y., Mujdeci, M. (2001) Soils of Atabey plain. Suleyman Demirel University Publications, Isparta (in Turkish).
  • Akinremi, O.O., Cho, C.M. (1991a) Phosphate and accompanying cation transport in a calcareous cation-exchange resin system. Soil Science Society of America Journal, 55, 694–959.
  • Akinremi, O.O., Cho, C.M. (1991b): Phosphate transport in calcium saturated system: ii. Experimental result in a model system. Soil Science Society of America Journal, 55, 1282–1287.
  • Brady, N.C. (1990) The nature and properties of soils. Macmillan, New York.
  • Beckwith, R.S. (1965) Sorbed phosphate at standard supernatant concentration as an estimate of the phosphate needs of soils. Australian Journal of Experimental Agriculture and Animal Husbandry, 5, 52–58.
  • Berkman, E.T., Reise, S.P. (2012) A conceptual guide to statistics using SPSS. Sage Publications, London
  • Bertrant, I., Holloway, R. E., Armstrong, R.D., McLaughlin, M.J. (2003) Chemical characteristics of phosphorus in alkaline soils from southern Australia. Australian Journal of Soil Research, 41, 61-76. doi: 10.1071/SR02021.
  • Delgado, A., Torrent, J. (2000) Phosphorus forms and desorption patterns in heavily fertilized calcareous and limed soils. Soil Science Society of America Journal, 64, 2031–2037. doi: 10.2136/sssaj2000.6462031x
  • Delgado, A., Uceda, I., Andreu, L., Kassem, S. (2002) Fertilizer phosphorus recovery from gypsum amended reclaimed calcareous marsh soils. Arid Land Research and Management, 16, 319-334. doi: 10.1080/15324980290000421.
  • Duffera, M., Dobarge, W.P. (1999) Soil characteristics and management effects on phosphorus sorption by highland plateau soils of Ethiopia. Soil Science Society of America Journal, 63, 1455-1462. doi: 10.2136/sssaj1999.6351455x.
  • Durgun, B. (2016) Determination of zinc fractions in soil series of Atabey plain. MSc thesis, Suleyman Demirel University (in Turkish).
  • Fox, R.L., Kamprath, E.J. (1970) Phosphate sorption isotherm for evaluating the phosphate requirement of soils. Soil Science Society of American Proceedings, 34, 902–907.
  • Fox, R.L. (1981) External phosphorus requirement of crops. In: Stelly, M. et al (eds) Chemistry in the soil environment. American Society of Agronomy, Madison, pp 223–239.
  • Gee G, Bauder J (1986). Particle-size analysis. In: Klute A (ed) Methods of soil analysis, physical and mineralogical methods. 2nd edn, SSSA Madison, Wisconsin, pp 383–409.
  • Grant, C., Bittman, S., Montreal, M., Plenchette, C., Morel, C. (2005) Soil and fertilizer phosphorus: Effect on plant P supply and mycorrhizal development. Canadian Journal Plant Sciences, 85, 3-14. doi: 10.4141/P03-182 .
  • Huang, Q.N. (1998) Properties of phosphorus adsorption and desorption in red soil under a stand of Chinese fir in Fujian. Journal of Nanjing Forestry University, 22,39-44.
  • Hussein, A., Murtaza, G., Ghafoor, A., Mehdi, S.M., Sabir, M. (2010) Assessment of phosphorus requirements of wheat on different textured alluvial soils through Freundlich type equations. Communications in Soil Science and Plant Analysis, 41(20), 2413–2431. Doi:10.1080/00103624.2010.511373
  • Jackman, J.M., Jones, R.C., Yost, R.S., Babock, C.J. (1997) Rietveld estimates of mineral percentages to predict phosphorous sorption by selected Hawaiian soils. Soil Science Society of America Journal, 61, 618–629.
  • Jalali, M. (2007) Phosphorus status and sorption characteristics of some calcareous soils of Hamadan, Western Iran. Environmental Geology, 53, 365–374. doi: 10.1007/s00254-007-0652-7.
  • Jaszberenyi, I., Loch, J. 1996. Soil phosphate adsorption and desorption in 0.01M calcium chloride electrolyte. Communications in Soil Science and Plant Analysis, 27, 1211-1225. doi: 10.1080/00103629609369627.
  • Kumar, M. (2015) Phosphate requirement of acidic soils in Northeast India: A reappraisal based on phosphate sorption isotherms. National Academy Science Letters, 38(5), 383–386.
  • Kuo, S. (1996) Phosphorus. In: Sparks DL, Page AI, Helmke PA, et al. (eds) Chemical methods of soil analysis, Part 3, SSSA/ASA, Madison, pp, 869-919.
  • Leytem, A.B., Mikkelsen, R.L. (2005). The nature of phosphorus in calcareous soils. Better Crops 89:11-13.
  • Lindsay, W.L. (1979) Chemical equilibria in soils. JohnWiley & Sons, New York.
  • Lindsay, W.L. (2001) Chemical equilibria in Soils. The Blackburn Press, USA.
  • Memon, K.S., Puno, H.K., Fox, R.L. (1991) Phosphate sorption approach for determining phosphorus requirements of wheat in calcareous soils. Fertilzer Research, 28, 67–72. doi: 10.1007/BF01048857.
  • Mihoub, A., Bouhoun, M.D., Saker, M.L. (2016) Phosphorus adsorption isotherm: A key aspect for effective use and environmentally friendly management of phosphorus fertilizers in calcareous soils. Communications in Soil Science and Plant Analysis, 47(16), 1920-1929. doi: 10.1080/00103624.2016.1206923.
  • Moradi, N., Sadaghiani, M.H.R., Sepehr, E., Mandoulakani, B.A. (2012) Effects of low-molecular-weight organic acids on phosphorus sorption characteristics in some calcareous soils. Turkish Journal of Agriculture and Forestry, 36, 459-468. 10.3906/tar-1106-38.
  • Murphy, J., Riley, J.P. (1962) A modified single solution method for the determination of phosphate in natural waters. Analytica Chimica Acta, 27, 31-36.
  • Parat, M.O., Anand-Apte, B., Fox, L.P. (2003) Differential caveolin-1 polarization in endothelial cells during migration in two and three dimensions. Molecular Biology of the Cell, 14(8), 3156-3168. doi: 10.1091/mbc.E02-11-0761
  • Plenchette, C., Morel, C. (1996) External phosphorus requirement of mycorrhizal and non-mycorrhizal barley and soybean plants. Biology and Fertility of Soils, 21, 303-308. doi: 10.1007/BF00334907
  • Rashid, M., Iqbal, M. (2011) Response of sorghum (Sorghum bicolor L.) fodder to phosphorus fertilizer on torripsamment soil. Journal of Animal and Plant Sciences, 21, 220-225.
  • Rashid, M., Iqbal, M. (2012) Effect of phosphorus fertilizer on the yield and quality of maize (Zea Mays L) fodder on clay loam soil. Journal of Animal and Plant Sciences, 22, 199-203.
  • Roy, A.C., De Datta, S.K. (1985) Phosphate Adsroption Isotherms for Evaluating Phosphorus Requirement of Wetland Rice Soils. Plant and Soil, 86(2), 185-196.
  • Shuman, L.M. (1985) Fractionation method for soil microelements. Soil Science, 140(1), 11-22.
  • Singh, B., Gilkes, R.J. (1991) Phosphorus sorption in relation to soil properties for the major soil types of south-western Australia. Australian Journal of Soil Research, 29(5), 603 – 618.
  • Sparks, D.L. (1996) Methods of soil analysis. Part 3. Chemical Properties. SSSA/ASA, Wisconsin.
  • Taghipour, M., Jalali, M., (2013). Effect of low-molecular-weight organic acids on kinetics release and fractionation of phosphorus in some calcareous soils of western Iran. Environmental Monitoring and Assessment, 185(7), 5471-5482. doi: 10.1007/s10661-012-2960-y.
  • Tan, K.H. (2011) Principles of soil chemistry. 4th edn, CRC Press, Boca Raton.
  • Tiessen, H., Stewart, J.W.B., Cole, C.V. (1984) Pathway transformation in soils of differing pedogenesis. Soil Science Society of America Journal, 48, 853–858.
  • Tunesi, S., Poggi, V., Gessa, C. (1999) Phosphate adsorption and precipitation in calcareous soils: the role of calcium ions in solution and carbonate minerals. Nutrient Cycling in Agroecosystems, 53, 219–227.
  • Umoh, F.O., Osodeke, V.E., Edem, I.D., Effiong, G.S. (2014) Application of Langmuir and Freundlich models in phosphate sorption studies in soil of contrasting parent materials in south-eastern Nigeria. Library Journal, 1, e989. doi: 10.4236/oalib.1100989.
  • Uygur, V. (2009) Phosphate sorption in calcareous Soils: The role of iron oxide and carbonates. Asian Journal of Chemistry, 21(4), 3001-3009.
  • Uygur, V., Karabatak, I. (2009) The effect of organic amendments on mineral phosphate fractions in calcareous soils. Journal of Plant Nutrition and Soil Science, 172, 336-345. doi: 10.1002/jpln.200700326.
  • Veith, J.A., Sposito, G. (1977) On the use of Langmuir equation in the interpretation of adsorption phenomena. Soil Science Society of America Journal, 41, 697-702.
  • Walker, T., Syers, J. (1976) The fate of phosphorus during pedogenesis. Geoderma, 15, 1–19.
  • Wang, X.J.M., Jackman, R.S., Yost, R.S., Linquist, B.A. (2000) Predicting soil phosphorous buffer coefficients using potential sorption site density and soil aggregation. Soil Science Society of America Journal, 64, 240–246.
  • Wang, Y.Z., Hu, B.Q., Yan, Y. (2016) Effects of low molecular weight organic acids on phosphorus adsorption characteristics in a black clay soil in northeast China. Fresenius Environmental Bulletin, 25, 517-524. doi: 10.1007/s10661-011-2422-y.
  • Ylihalla, M. (1991). Phosphate adsorption characteristics of 2 soils responding differently to P-fertilization. Journal of Agricultural Science in Finland, 63, 363-369.
There are 51 citations in total.

Details

Primary Language English
Subjects Agricultural, Veterinary and Food Sciences
Journal Section Original Papers
Authors

Veli Uygur 0000-0003-3971-7714

Tuba İnce 0000-0001-6898-4948

Project Number 4363-YL2-15
Publication Date December 30, 2020
Submission Date October 18, 2020
Acceptance Date December 5, 2020
Published in Issue Year 2020 Volume: 4 Issue: 2

Cite

APA Uygur, V., & İnce, T. (2020). Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms. International Journal of Agriculture Forestry and Life Sciences, 4(2), 215-228.
AMA Uygur V, İnce T. Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms. Int J Agric For Life Sci. December 2020;4(2):215-228.
Chicago Uygur, Veli, and Tuba İnce. “Relationships Between Phosphorus Adsorption Isotherms and Properties of Calcareous Soils and Determination of Phosphorus Fertilizer Requirement from the Isotherms”. International Journal of Agriculture Forestry and Life Sciences 4, no. 2 (December 2020): 215-28.
EndNote Uygur V, İnce T (December 1, 2020) Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms. International Journal of Agriculture Forestry and Life Sciences 4 2 215–228.
IEEE V. Uygur and T. İnce, “Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms”, Int J Agric For Life Sci, vol. 4, no. 2, pp. 215–228, 2020.
ISNAD Uygur, Veli - İnce, Tuba. “Relationships Between Phosphorus Adsorption Isotherms and Properties of Calcareous Soils and Determination of Phosphorus Fertilizer Requirement from the Isotherms”. International Journal of Agriculture Forestry and Life Sciences 4/2 (December 2020), 215-228.
JAMA Uygur V, İnce T. Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms. Int J Agric For Life Sci. 2020;4:215–228.
MLA Uygur, Veli and Tuba İnce. “Relationships Between Phosphorus Adsorption Isotherms and Properties of Calcareous Soils and Determination of Phosphorus Fertilizer Requirement from the Isotherms”. International Journal of Agriculture Forestry and Life Sciences, vol. 4, no. 2, 2020, pp. 215-28.
Vancouver Uygur V, İnce T. Relationships between phosphorus adsorption isotherms and properties of calcareous soils and determination of phosphorus fertilizer requirement from the isotherms. Int J Agric For Life Sci. 2020;4(2):215-28.

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