Reduction of exchangeable calcium and magnesium in soil with increasing pH

Miyazawa, Mário; Pavan, Marcos Antonio; Ziglio, Cláudio O.; Franchini, J. C.

doi:10.1590/s1516-89132001000200007

Cited by 14 publications

(10 citation statements)

References 10 publications

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“…The calcium carbonate is reported to precipitate out on the gypsum particles' surfaces, thereby reducing their dissolution rate and, hence, reducing the efficacy of the applied gypsum (Keren and Kauschansky, 1981;Noble and Randall, 1998). Ca is also reported to form isomorphic copreciptates in soils at pH values observed in this study with ions such as Al(OH) 4 À , Al(OH) 5 2À and Al(OH) 6 3À (Miyazawa et al, 2001), which can be found as impurities in commercial gypsum. Overall, however, the differences in exchangeable Ca between gypsum-treated and control plots were relatively small when compared to the changes which occurred with time.…”

Section: Soil Propertiesmentioning

confidence: 62%

“…Treatments and times of sampling interacted in the 0Á1-0Á3 m and 0Á6-1Á2 m depths (P < 0Á05) such that in three out of five years exchangeable Ca values were lower in plots where gypsum was applied than in control plots. This may be due to soluble Ca in irrigation water and in gypsum forming precipitates with carbonate ions (Keren and Kauschansky, 1981;Noble and Randall, 1998;Miyazawa et al, 2001), which are present as impurities in commercial gypsum . The calcium carbonate is reported to precipitate out on the gypsum particles' surfaces, thereby reducing their dissolution rate and, hence, reducing the efficacy of the applied gypsum (Keren and Kauschansky, 1981;Noble and Randall, 1998).…”

Section: Soil Propertiesmentioning

confidence: 99%

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Changes in soil properties of an eastern Australian vertisol irrigated with treated sewage effluent following gypsum application

Hulugalle¹,

Weaver²,

Ghadiri

et al. 2006

Land Degrad Dev

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Historically many towns in inland Australia disposed of their treated sewage by pumping into local rivers. This is no longer a feasible proposition. Alternatives to river pumping include irrigation and/or aquaculture. As treated sewage effluent may contain large amounts of nitrogen, phosphorus and sodium salts, if not managed carefully, soil salinity, sodicity and nutrient accumulation could increase. The objective of this study was to evaluate if gypsum application had any effect on soil-quality changes in a Vertisol due to irrigating a cotton-wheat rotation with tertiary treated sewage effluent. The treatments were application of 2Á5 t ha À1 of gypsum in June 2000 before commencing irrigation and an untreated control. Annually, between June 2000 and April 2004, irrigation water quality and soil changes in nitrate-N, EC 1:5 , pH, organic carbon, Cl, dispersion index, and exchangeable cations to a depth of 1Á8 m were measured and deep drainage inferred with the chloride mass balance method. Cotton lint yield and fibre characteristics were also evaluated.Irrigation with treated sewage effluent increased exchangeable Na in all depths, and exchangeable Ca and K in the clayey-textured surface 0Á6 m, but decreased exchangeable Ca and K, and SOC in the coarser clay-loam-textured depths > 0Á6 m. Nitrate-N leaching, associated with deep drainage had occurred, as the crops had not used all the N in irrigation water. Gypsum application decreased exchangeable Ca, increased dispersion and during the 2003-2004 season deep drainage, but had no effect on salinity, sodicity or pH. Application of commercial gypsum at sub-optimal rates with sodiumrich irrigation water is, therefore, unlikely to improve soil properties. Stubble incorporation before sowing cotton in 2003 appears to have mobilized gypsum applied during 2000. Gypsum application reduced cotton lint yield and fibre quality during

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Section: Soil Propertiesmentioning

confidence: 62%

Section: Soil Propertiesmentioning

confidence: 99%

Changes in soil properties of an eastern Australian vertisol irrigated with treated sewage effluent following gypsum application

Hulugalle¹,

Weaver²,

Ghadiri

et al. 2006

Land Degrad Dev

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“…L´augmentation du pH du sol entraîne une diminution de la concentration de magnésium soluble dans les sols calcaires. Cela est lié vraisemblablement à sa précipitation sous forme de carbonate de calcium (Miyazawa et al, 2001). C'est le cas de nos échantillons de sols qui présentent des taux de calcaire supérieurs à 25 % (Laribi, 2002).…”

Section: Discussionunclassified

Etat Du Magnesium Dans Quelques Sols Sales Du Sud Et Du Centre De L\'Irak

Laribi¹,

Alzubaidi²

2009

Agronomie Africaine

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“…Cuatro frascos fueron seleccionados en cada evaluación en un muestreo sin reemplazo. El pH se determinó empleando una relación suelo-agua de 1:1; la acidez cambiable fue determinada por el método descrito por Yuan (1959); el calcio cambiable fue determinado por desplazamiento con KCl 1 N y posterior espectrofotometría de absorción atómica (Miyazawa et al, 2001). Se utilizó KCl en vez de CH 3 COONH 4 (Ciesielski et al, 1997) para evitar la disolución del calcio de las cáscaras sin reaccionar.…”

Section: Análisis Químicounclassified

Uso de cáscara de huevo molida como material encalante en un suelo ácido del Perú

Huanca

2019

Idesia

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El crecimiento de la industria avícola en el Perú ha incrementado la producción de cáscaras de huevo. Este material tiene interés por su potencial como enmienda química en suelos ácidos. La presente investigación fue realizada en laboratorio con el objetivo de determinar la factibilidad del uso de la cáscara de huevo molida como enmienda encalante y fuente de calcio biodisponible. Un suelo ácido de Ucayali fue enmendado con cáscara de huevo molida de dos tamaños de partícula: fracción fina (53-106 μm) y sin tamizar (< 1,7 mm). Las fracciones fueron aplicadas en dosis equivalentes a 100, 200 y 400% de la acidez cambiable incluyendo un tratamiento sin enmienda como control. El suelo fue incubado a temperatura ambiente durante 135 días. El pH, la acidez cambiable y los contenidos de calcio cambiable (KCl 1N) y extractable (Mehlich-3) en el suelo fueron determinados a los 45, 90 y 135 días de incubación. Ambas fracciones mostraron un comportamiento similar en las variables evaluadas. El pH y los contenidos de calcio cambiable y extractable del suelo se incrementaron en forma proporcional a la dosis empleada. La dosis equivalente a 100% de la acidez cambiable permitió alcanzar valores de pH inferiores a 5,4, pero fue suficiente para neutralizar toda la acidez cambiable a partir de 45 días. El calcio extractable mostró alta correlación con el calcio cambiable. La cáscara de huevo molida presentó un alto potencial como enmienda encalante para suelos ácidos de la Amazonía. Palabras clave: Cáscara de huevo, acidez del suelo, encalado, calcio extractable.

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Reduction of exchangeable calcium and magnesium in soil with increasing pH

Abstract: ABSTRACT

Cited by 14 publications

References 10 publications

Changes in soil properties of an eastern Australian vertisol irrigated with treated sewage effluent following gypsum application

Changes in soil properties of an eastern Australian vertisol irrigated with treated sewage effluent following gypsum application

Etat Du Magnesium Dans Quelques Sols Sales Du Sud Et Du Centre De L\'Irak

Uso de cáscara de huevo molida como material encalante en un suelo ácido del Perú

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