KRISHI
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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/25556
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Panda, R., Patra, S.K., | en_US |
dc.date.accessioned | 2019-11-27T06:21:04Z | - |
dc.date.available | 2019-11-27T06:21:04Z | - |
dc.date.issued | 2018-07-08 | - |
dc.identifier.citation | Panda, R., Patra, S.K., 2018.Quantity-intensity relations of potassium in representative coastal soils of eastern India.Geoderma 332, 198-206. | en_US |
dc.identifier.issn | 0016-7061 | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/25556 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Quantity-intensity (Q/I) isotherms were used to evaluate the dynamics of K+ in twelve coastal soils of eastern India. The activity ratio of K+ (ARe K ) and corresponding changes in labile K+ ( ± ΔK) at equilibrium increased with increasing K+ concentrations. The equilibrium activity ratio of K+ (ARe 0K) varied between 0.09 × 10−3 and 7.50 × 10−3 (mol L−1 ) 1/2. The labile K+ (KL) ranged from 0.265 to 0.4 cmol kg−1 constituting 43.8 to 204.5% of 1N NH4OAc extractable K+. The readily available (K0) and fixed K+ (KX) varied from 0.082 to 0.290 and 0.041 to 0.278 cmol kg−1 contributing 22.8 to 84.5 and 15.5 to 77.2% towards KL, respectively. The potential buffering capacities for K+ (PBCK ) fluctuated from 16.2 to 85.7 cmol kg−1 (mol L−1 ) −1/2. The K+ potential ranged from 2.38 to 10.76 cmol kg−1 (mol L−1 ) −1/2. The free energy of K+ exchange (−ΔG) ranged from −5533 to −2906 calories mol−1 indicating deficient to adequate in available K+. The ARe 0K, K0, KX and −ΔG had significant positive correlations with pH, CEC, available and reserves soil K+, while there were inverse relationships between PBCK and these soil parameters. A significant positive correlation was found between ARe 0Kand K0, K+ saturation, −ΔG and significant negative correlation with KX and PBCK . Significant positive correlations were observed between KX and KL and PBCK and significant negative correlations with ARe 0K, −ΔG and K+ saturation. PBCK had significant negative correlations with K0, −ΔG and K+ saturation. The study provided useful information for understanding K+ dynamics in coastal soils and make significant contribution to operational K+ management. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | Potassium quantity-intensity isotherms Activity ratio Labile K+ Potential buffering capacity Free energy of exchange Coastal saline soils | en_US |
dc.title | Quantity-intensity relations of potassium in representative coastal soils of eastern India. | en_US |
dc.title.alternative | Not Available | en_US |
dc.type | Article | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Geoderma | en_US |
dc.publication.volumeno | 332 | en_US |
dc.publication.pagenumber | 198-206 | en_US |
dc.publication.divisionUnit | Not Available | en_US |
dc.publication.sourceUrl | https://doi.org/10.1016/j.geoderma.2018.07.014 | en_US |
dc.publication.authorAffiliation | a IMD, GKMS, Majhian, Uttar Banga Krishi Viswavidyalaya, West Bengal 733133, India | en_US |
dc.publication.authorAffiliation | Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal 741252, India | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 10.85 | en_US |
Appears in Collections: | NRM-IIWM-Publication |
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1-s2.0-S001670611731145X-main.pdf | 597.29 kB | Adobe PDF | View/Open |
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