Potassium dynamics in three alluvial soils differing in clay contents

Wakeel, Abdul; Gul, Mehreen; Sanaullah, Muhammad

doi:10.9755/ejfa.v25i1.15395

Cited by 27 publications

(15 citation statements)

References 12 publications

(7 reference statements)

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“…Further, soil response to applied K is different than N and P which is diverse (Wakeel et al, 2013). Farmers' education about potassium application and its effects on different crop mechanisms and productivity are needed.…”

Section: Lack Of Awareness About Balanced Fertilizer Use Conceptmentioning

confidence: 99%

“…Adequate supply of K improves the osmotic adjustment and develops tolerance in plants to water deficit (Egilla et al, 2005). Likely, many researches on potassium function to improve salt stress are available (Cakmak, 2005;Ashraf et al, 2012;Wakeel et al, 2013). Potassium minimizes the detrimental effects of sodium (Na) under salt stress by improving K: Na ratio in plant tissue and plant cell (Wakeel et al, 2013).…”

Section: Soil Sustainability and Abiotic Stressesmentioning

confidence: 99%

“…Similar reports have been reported in other parts of the United States (Mengel and Kirkby, 2001). Recently, Wakeel et al (2013) observed that presence of specific clay minerals affect the fixing and releasing capacity of K in three different soils. Smectitedominant soils usually showed faster release of K than illite soils and poor response of sugar beet plants was found to K fertilization in these soil types (Bohn et al, 2001;Wakeel et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Wakeel et al (2013) observed that presence of specific clay minerals affect the fixing and releasing capacity of K in three different soils. Smectitedominant soils usually showed faster release of K than illite soils and poor response of sugar beet plants was found to K fertilization in these soil types (Bohn et al, 2001;Wakeel et al, 2013). Potassium sorption on exchange sites and its fixation also depend on the physicochemical properties of the soil along with the type and content of the clay minerals (Braunsweigh, 1980).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Potash Use for Sustainable Crop Production in Pakistan: A Review

Wakeel¹,

Rehman²,

Magen³

2017

IJAB

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Section: Lack Of Awareness About Balanced Fertilizer Use Conceptmentioning

confidence: 99%

Section: Soil Sustainability and Abiotic Stressesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Potash Use for Sustainable Crop Production in Pakistan: A Review

Wakeel¹,

Rehman²,

Magen³

2017

IJAB

Self Cite

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“…The lowest (2807.2 mg kg -1 ) amount of total-K was noticed at Rajgarh tehsils of Churu district which may be ascribed to sandstone type parent material and their degree of weathering (Ahmed;and Walia, 1999). Recently, it has been reported that the presence of specific clay minerals affect the K-fixing capacity and slow and fast release of K in different soils (Wakeel et al, 2013). Smectite along with the mica is the reason for a soil having appreciable amount of total-K. Only 1 -2% of the total soil K is in a readily available form.…”

Section: Total K (Total-k)mentioning

confidence: 99%

Untitled

2017

Int.J.Curr.Microbiol.App.Sci

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Potassium transformation in clay soil with contrasting K budgets in long‐term experiment

et al. 2020

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Canadian Shield clay soils are high in potassium (K) reserves. The differential contribution of soil K fractions to crop nutrition is an important issue for ley farming systems of Eastern Canada where nitrogen (N)-based manure application rate leads to K surplus and redistribution. Our objective was to assess the long-term change in K offtake, K budget, and K forms under a 3-yr-cycle ley farming system (barley [Hordeum vulgare]-mixed forage-mixed forage) initiated in 1989 and ended in 2016. The liquid dairy manure (LDM) supplied higher amounts of K than mineral fertilization (MIN) and led to larger K offtake across crop cycles. The cumulative K budgets averaged −579 kg K ha −1 cycle −1 for MIN and +69 kg K ha −1 cycle −1 for LDM. Despite cyclic variations, topsoil showed a surplus of exchangeable K (>100 kg K ha −1) at the end of experimentation under MIN and LDM compared to the initial state in 1989. Exchangeable and nonexchangeable K fractions increased between 2001 and 2016 in 0-to 30-cm depth even under K deficit (MIN), due to K release from slowly available forms and recycling from lower layers. There were no significant relationships between K budget and exchangeable K down to 90 cm. The approach relating soil exchangeable K and K budgets to support buildup and maintenance of soil fertility proved to be inappropriate in clay soils high in illite-like minerals. Potassium dynamics in clay soils under ley farming highlighted the importance of considering nonexchangeable and subsoil K in K fertilization recommendations.

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Potassium dynamics in three alluvial soils differing in clay contents

Abstract: Despite the presence of a huge amount of potassium (K +

Cited by 27 publications

References 12 publications

Potash Use for Sustainable Crop Production in Pakistan: A Review

Potash Use for Sustainable Crop Production in Pakistan: A Review

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Potassium transformation in clay soil with contrasting K budgets in long‐term experiment

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