Spatial variability of soil potassium and its relationship to land use and parent material

Akbaş, Fevzi; Günal, Hikmet; Acır, Nurullah

doi:10.17221/32/2016-swr

Cited by 24 publications

(10 citation statements)

References 27 publications

(20 reference statements)

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“…Often, K availability is more dependent on its concentration relative to Ca and Mg than on the total quantity of K present in the soil solution. The levels of K in solution, as well as the release of K, are dependent on the concentrations of Ca and Mg in soil solution (Akbas et al, 2017). Except exchangeable Ca, there was no significant (P>0.05) difference in CEC, exchangeable Mg and K between slope positions.…”

Section: Soil Chemical Properties Soil Ph Electrical Conductivity (Ementioning

confidence: 86%

Changes in selected soil properties across a chronosequence of exclosures in the central dry lowlands of Ethiopia

Tesfay

Kibret

Gebrekirstos

et al. 2020

Eurasian Journal of Soil Science (Ejss)

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Section: Soil Chemical Properties Soil Ph Electrical Conductivity (Ementioning

confidence: 86%

Changes in selected soil properties across a chronosequence of exclosures in the central dry lowlands of Ethiopia

Tesfay

Kibret

Gebrekirstos

et al. 2020

Eurasian Journal of Soil Science (Ejss)

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“…The increased input of OM increases the soil cationic exchange capacity, which can reduce the leaching rate of positively charged nutrients like Ca 2+ , potassium (K + ), and magnesium (Mg 2 + ) (Mbah, 2008). However, the leaching of soil K through irrigation water, limited recycling of crop residue, continuous cropping, and soil erosion have contributed to the depletion of basic cations on agricultural lands compared to agroforestry and grasslands (Akbas, Gunal, & Acir, 2017;Lechisa, Achalu, & Alemayehu, 2014;Srivastava, Johansen, Neupane, & Joshi, 2005). Interestingly, several places in Chaulahi village within the study area had high OM but were recorded with low K value, which could be due to the high erosion losses at those sites, which were alongside riverbanks.…”

Section: Available Potassiummentioning

confidence: 99%

Spatial Variability of Soil Properties under Different Land Use in the Dang District of Nepal

Panday¹,

Ojha²,

Chalise³

et al. 2018

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A study was carried out in the eastern part of Dang district in Nepal to assess the variability of selected soil properties due to different land use and map their spatial distribution. Considering three land use types (agriculture, agroforestry, and grassland), a total of 120 samples were collected from surface soil (0 to 15 cm depth) in May 2015 and analyzed for soil fertility parameters: pH, organic matter (OM), nitrogen (N), phosphorus (P), potassium (K), boron (B), and zinc (Zn). Results revealed that the average value of soil pH significantly (P<0.05) varied from 7.05 in agroforestry to 7.53 in agriculture land use. Soil OM and N contents were medium in range in all land use with slight variation, the highest average OM and N found in grassland (2.87% and 0.14% respectively), followed by agriculture (2.64% and 0.13% respectively), and agroforestry (2.45% and 0.12% respectively). Further, the results showed significant variation for P among agroforestry (18.99 kg ha-1) and grassland (8.49 kg ha-1) while the K content was the highest for grassland (144 mg kg-1) and lowest for agriculture (120 mg kg-1). Micronutrients- B was low (0.28 to 0.35 mg kg-1) and Zn was very low (0.14 mg kg-1) in all land use. There is a need to add appropriate fertilizer N, P, B, and Zn to the soil in order to increase the fertility status under different land use. Spatial variability maps for soil chemical properties can be used by farmers and local planners to make effective soil management strategies.

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“…Уміст калію в ґрунті залежить від наявності первинних і вторинних мінералів, хімічного складу материнської породи, а на його трансформацію істотно впливають вміст гумусу, реакція ґрунтового розчину та погодно-кліматичні умови (Akbas et al 2017;Vorobiev et al, 2017;Harsha & Jagadeesh, 2017).…”

Section: обговоренняunclassified

The agrochemical state of sod-podzolic soils of Western Polissya in the conditions of anthropogenesis

Lyko¹,

Lyko²,

Portukhai³

et al. 2018

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The agrochemical state of sod-podzolic soils of thе Western Polissya is analysed area of next agro-industrial groups: 27b-sod-podzolic gley-dried clay-sandy, 14b-sod-podzolic and podzolic-sod gley clay-sandy soils; 5b-sod-podzolic and non-glued and gleyy clay-sandy soils on sandy sediments. The content of humus, alkaline hydrolyzed nitrogen, mobile phosphorus and exchangeable potassium in sod-podzolic soils on arable land, under pasture and hayfields has been investigated. Determination of agrochemical indexes of soils, conducted in the laboratory of analytical support of agrochemical and agro-ecological research and quality of products Rivne branch of the state institution "Institute of Soil Protection of Ukraine". As a result, a low and medium degree of land provision was found for the studied parameters (with the exception of mobile forms of phosphorus in the agricultural group 14b under grass) irrespective of their agricultural use. In terms of humus content, agricultural production groups 14b and 5b under haymasters have an average degree of provision (2,1-2,2%), 27b for arable land and 5b for pasture-low; on the content of alkali hydrolyzed nitrogen-very low (< 101 mg/kg); on maintenance the movable forms of phosphorus themiddle is educed (51-100 mg/kg); with the content of mobile potassium, the agricultural production group 5b has a medium the degree of availability (84 mg/kg), other study groups-very low (< 41 mg/kg of soil). From depth, the content of all studied parameters decreases. Studying the dynamics of these indexes during 2011-2015 it is not set substantial differences in the process of the protracted cultivating, only on plough-land of the use of sederal cultures in 2014-2015 assisted the insignificant improvement of content of humus and other agrochemical indexes. Analysing agrochemical properties it is necessary to mark expediency of their improvement by application of the organo-mineral system of fertilizer in connected with the periodic liming, and also the use of the sederal sowing with the aim of passing to the conduct of organic agriculture.

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Spatial variability of soil potassium and its relationship to land use and parent material

Cited by 24 publications

References 27 publications

Changes in selected soil properties across a chronosequence of exclosures in the central dry lowlands of Ethiopia

Changes in selected soil properties across a chronosequence of exclosures in the central dry lowlands of Ethiopia

Spatial Variability of Soil Properties under Different Land Use in the Dang District of Nepal

The agrochemical state of sod-podzolic soils of Western Polissya in the conditions of anthropogenesis

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