Forms of Potassium in Soil and their Relationship with  Soil Properties- A Review

Kaur, Harpreet

doi:10.20546/ijcmas.2019.810.184

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…In organic soils, it occurs in deeper horizons, closer to the parent material (Cook et al, 2009; Cornu et al, 1999), so its higher concentrations in the horizons‐A/AE are not surprising. Enrichment in potassium in lower horizons may arise from the presence of clay and silt which easily fix K. In surface layers, potassium is more mobile and available for plants because it is part of soluble organic matter complexes (Kaur, 2019). Fe does not reveal such a clear trend as Ti and K. The highest mean concentrations are in the A samples, but analysis of the results from particular SS showed some discrepancies in such a generalised conclusion (Table S4).…”

Section: Discussionmentioning

confidence: 99%

“…In organic soils, it occurs in deeper horizons, closer to the parent material (Cook et al, 2009;Cornu et al, 1999), so its higher concentrations in the horizons-A/AE are not surprising. Enrichment in potassium in lower horizons may arise from the presence of clay and silt which easily fix K. In surface layers, potassium is more mobile and available for plants because it is part of soluble organic matter complexes (Kaur, 2019). Fe…”

Section: Principal Component Analysismentioning

confidence: 99%

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Organic fermentative‐humic soil subhorizon (Ofh) as a ‘natural sponge’ of selected trace elements: Does this feature make it a potential geoindicator of temperate soil quality?

Dołęgowska,

Sołtys,

Krzciuk

2024

Land Degrad Dev

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In a temperate climate zone, the outermost part of forest soil forms the organic‐O horizon. It consists of subhorizons of varying thickness, including the organic fermentative‐humic subhorizon (Ofh), which resembles a tobacco tangled mat. The scientific novelty of this project is to evaluate whether the specific structure of the subhorizon‐Ofh makes it a ‘natural sponge’ for trace elements such as Cd, Hg, Pb and Zn, and whether it can be used as a potential geoindicator of soil quality. To test this hypothesis, 110 soil samples (55 from the subhorizon‐Ofh and 55 from the underlying soil horizons‐A [humic] or AE [humic‐eluvial]) were collected from five forest areas located in the south‐central Poland (Świętokrzyskie province). All samples were analysed for Ba, Ca, Cd, Cu, Fe, Hg, K, Mn, Pb, S, Ti and Zn. pH, EC, soil organic matter, total C and N were also measured. Our results confirm that the subhorizon‐Ofh acts like the sponge in relation to Cd, Hg and Zn. Concentrations of these elements are two to four times higher than in the A and AE horizons. Such a relationship is not observed for Pb which predominates in the A horizon. This feature means that analyses of samples from different (sub)horizons can lead to misleading conclusions about soil quality and contamination levels, which have been verified by geochemical factors. Our results can be a starting point for further research into the possible use of the subhorizon‐Ofh as a geoindicator of temperate soil quality in relation to selected trace elements.

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Section: Discussionmentioning

confidence: 99%

Section: Principal Component Analysismentioning

confidence: 99%

Organic fermentative‐humic soil subhorizon (Ofh) as a ‘natural sponge’ of selected trace elements: Does this feature make it a potential geoindicator of temperate soil quality?

Dołęgowska,

Sołtys,

Krzciuk

2024

Land Degrad Dev

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“…Menurut penelitian yang dilakukan oleh (Xu et al, 2020) pemenuhan unsur K yang tepat dapat meningkatkan efisiensi penggunaan nitrogen melalui aktivitas enzimatik metabolisme C dan N, fotosintesis, asimilasi dan transpor nitrat. Di dalam tanah unsur K yang belum terlarut lebih besar dibandingkan dengan yang terlarut (Kaur, 2019). Fakta tersebut membuat keberadaan rhizobakteri pelarut K menjadi penting karena dapat membantu nutrien untuk mudah diserap oleh tanaman.…”

Section: Pembahasanunclassified

POTENSI RHIZOBAKTERI DALAM MENDUKUNG PERTUMBUHAN STEK BATANG SINGKONG (Manihot esculenta Crantz) [The Potential of Rhizobacteria in Supporting the Growth of Cassava (Manihot esculenta Crantz ) Stem Cuttings]

Nugroho,

Agustiyani,

Sutisna

et al. 2023

Berita Biologi

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Cassava (Manihot esculenta Crantz) is an important food plant in Indonesia, particularly as a carbohydrate source. We require a plan to increase production and quality. The use of Plant Growth Promoting Rhizobacteria (PGPR) in organic fertilizers is one option. The aim of this study is to isolate, characterize, and evaluate potential microbial candidates for cassava greenhouse growth. K solubilizing, P solubilizing, N fixing, IAA production, protease production, ACC-deaminase, and siderophore production were investigated in 15 tuber root rhizobacteria isolates. The bacterial isolates' ability to grow cassava stem cuttings was then assessed. The rhizobacterial inoculation treatments in this study included fifteen single isolates, a combination of isolates, and controls. With three replications, the experimental design was completely randomized. Five P-solubilizing bacterial isolates (PK AL.2.2, PK LAS 4A.4, PK 4.1, PK Al.2.6, PK Kbm 6.1), two protease-producing isolates (Pro LAS 4B.6 and Pro LAS 5A.3), and one IAA-producing isolate (TSB LAS 1A.6) increased wet plant weight by 20-41% as compared to controls. The results of molecular identification of the six excellent isolates were Burkholderia sp. (PK AL.2.2), Paenarthrobacter nicotinovorans (Pro LAS 4B.6), Burkholderia territorii (PK 4.1), Burkholderia cenocepacia (Pro LAS 5A.3), Burkholderia territorii (PK LAS 4A.4), and Kocuria rhizophila (TSB LAS 1A.6).

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“…Potassium is the most abundant cation in plants [13]. In the soil, potassium is found in four forms: exchangeable, constitutive, retrograde, and soluble [14]. The exchangeable and soluble forms constitute the compartment available to plants.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Potassium Fertilization Effect on Morphological and Agrophysiological Indicators of Durum Wheat under Mediterranean Rain-Fed Conditions

et al. 2023

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It is well known that balanced and optimal mineral fertilization (i.e., nitrogen, phosphorus, and potassium) can increase yield and improve wheat quality. However, there is little scientific knowledge on the specific effect of potassium (K) fertilization on the morphological and qualitative characteristics of rainfed durum wheat under Mediterranean conditions, especially in the context of Algerian agriculture. Therefore, the main objective of this study is to provide crucial information on this important type of durum wheat mineral nutrition for farmers and researchers working in similar areas. The field study was conducted in the Northern Algerian region of Mitidja during the 2020/2021 and 2021/2022 growing seasons. The effect of K fertilization was evaluated within five contrasted rates of K: 0 kg k2O ha−1, 100 kg k2O ha−1, 200 kg k2O ha−1, 300 kg k2O ha−1, and 400 kg k2O ha−1, which were applied on one of the most commonly cultivated cultivars of durum wheat (Simeto). Results showed that increasing potassium levels had a positive and significant impact only on grain yield, spike length, spike neck, and dry matter. Hence, the highest grain yield of durum wheat (2.58 t ha−1) was demonstrated under low K application (100 kg k2O ha−1). This rate leads to an increase in grain yield by more than 0.6 t ha−1, as compared to the unfertilized control. Moreover, the thousand-grain weight of durum wheat was significantly increased by 4.11 g and 1.96 g, respectively, under low and moderate (200 kg k2O ha−1) K-fertilization, as compared to the control. In terms of grain yield quality, low K application provides an increase of 1.21% in protein content as compared to that measured under the control treatment. The major finding confirmed that both growth and yield indicators of durum wheat were globally optimized under low K application. Based on grain yield and evaluated agronomic traits, this research revealed that an applied K rate of 100 kg k2O ha−1 is recommended as the most effective dose to maximize durum wheat yield and quality under Algerian sub-humid conditions.

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Forms of Potassium in Soil and their Relationship with Soil Properties- A Review

Cited by 7 publications

References 10 publications

Organic fermentative‐humic soil subhorizon (Ofh) as a ‘natural sponge’ of selected trace elements: Does this feature make it a potential geoindicator of temperate soil quality?

Organic fermentative‐humic soil subhorizon (Ofh) as a ‘natural sponge’ of selected trace elements: Does this feature make it a potential geoindicator of temperate soil quality?

POTENSI RHIZOBAKTERI DALAM MENDUKUNG PERTUMBUHAN STEK BATANG SINGKONG (Manihot esculenta Crantz) [The Potential of Rhizobacteria in Supporting the Growth of Cassava (Manihot esculenta Crantz ) Stem Cuttings]

Investigating the Potassium Fertilization Effect on Morphological and Agrophysiological Indicators of Durum Wheat under Mediterranean Rain-Fed Conditions

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