Determination of Exchange Capacity and Exchangeable Bases in Soil—ammonium Acetate Method

Schollenberger, C. J.; Simon, R. H.

doi:10.1097/00010694-194501000-00004

Cited by 669 publications

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“…Total carbon and N in the biochar were determined using a CNS analyzer (TrueMac CNS Analyser). CEC and exchangeable cations were determined using 1 M NH 4 OAc buffered at pH 7 (Schollenberger and Simon 1945). The K, Ca and Mg in the extracts were then measured by atomic absorption spectrophotometry (Perkin-Elmer, 5100 PC, USA).…”

Section: Biochar Analysis and Characterizationmentioning

confidence: 99%

“…Total phosphorus was determined by (Muir 1952) and available P was determined by Bray and Kurtz II method (Bray and Kurtz 1945). Leaching method was used to determine exchangeable K, Ca and Mg (Schollenberger and Simon 1945). Cation exchange capacity was measured using the NH 4 ' replacement method (Schollenberger and Simon 1945) by determining from the same soil, which was previously leached with 1 M NH 4 OAc for the determination of exchangeable bases.…”

Section: Soil Analysis and Characterizationmentioning

confidence: 99%

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Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions

et al. 2015

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. 2015. Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions. Can. J. Soil Sci. 95: 37Á47. Ultisols in the tropics are characterized by low pH and high exchangeable Al. Maize grown on them produces low yield. A study was conducted to determine changes in soil properties and their subsequent effects on maize growth, resulting from oil palm empty fruit bunch (EFB) biochar and/or dolomitic limestone application. The results show that the application of the EFB biochar improved soil fertility by increasing soil pH. The Al 3' activities in the soil solution decreased exponentially with increasing rate of the biochar application. The decrease in Al in the biochar-treated soil occurred because:(1) at the rate of 5 t ha(1 , soil solution pH increased significantly, precipitating Al as gibbsite; and (2) the biochar was able to fix some of the Al by chelation. Application of the biochar alone or in combination with lime significantly improved maize growth. The critical Al 3' activity for maize grown on Ultisol was 10 mM, while critical pH was 4.7Á4.8. Maize grown on the EFB biochar-amended soils produced greater root length compared with that of the control. The optimal rate of EFB biochar application to improve the productivity of the Ultisol for maize production under glasshouse condition was 5Á10 t ha Les auteurs ont entrepris une e´tude pour de´terminer comment l'application de biocharbon venant de la masse des fruits vides (MFV) du palmier a`huile ou de chaux dolomitique, ou des deux, modifie les proprie´te´s du sol et la croissance du maı¨s. Les re´sultats indiquent que l'application de biocharbon MFV rend le sol plus fertile en augmentant son pH. L'activite´des ions Al 3' dans la solution de sol diminue de fac¸on exponentielle avec la quantited e biocharbon applique´e. La baisse de la concentration d'ions Al dans le sol amende´avec du biocharbon est attribuable ad eux phe´nome`nes: 1) quand le taux d'application de´passe 5 t par hectare, le pH de la solution de sol augmente de manie`re significative, ce qui entraıˆne la pre´cipitation des ions Al sous forme de gibbsite; 2) le biocharbon fixe une partie de l'aluminium par che´lation. Appliquer du biocharbon seul ou avec de la chaux ame´liore significativement la croissance du maı¨s. Le seuil critique en ce qui concerne l'activite´des ions Al 3' pour la culture du maı¨s sur les ultisols est de 10 mM, le pH critique se situant, lui, a`4,7-4,8. Le maı¨s cultive´sur les sols amende´s avec du biocharbon MFV forme des racines plus longues que celui cultive´sur la parcelle te´moin. Le taux d'application optimal du biocharbon MFV pour la culture du maı¨s en serre se situe entre 5 et 10 t par hectare.

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Section: Biochar Analysis and Characterizationmentioning

confidence: 99%

Section: Soil Analysis and Characterizationmentioning

confidence: 99%

Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions

et al. 2015

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“…Kamewada and Shibata (1997) reported that the measured values of K contents in the extraction corresponded to those extracted by 1 mol L −1 ammonium acetate solution adjusted to pH 7.0 based on the method of Schollenberger and Simon (1945). The CEC was determined by ammonium ion analysis of extraction with an automatic stirrer (CEC-10; Fujihira Industry, Tokyo, Japan).…”

Section: Soil Sampling and Analysismentioning

confidence: 99%

“…The exchangeable potassium (Ex-K) content extracted by 1 mol L −1 ammonium acetate solution based on the method of Schollenberger and Simon (1945) is generally used to evaluate soil K fertility in Japan. In addition to ammonium acetate solution, Bray No.…”

Section: Introductionmentioning

confidence: 99%

Potassium fertilization and soil diagnostic criteria for forage corn (Zea maysL.) production contributing to lower potassium input in regional fertilizer recommendation

Sunaga

Harada

Kawachi

2015

Soil Science and Plant Nutrition

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“…The cation exchange capacity (CEC) of the soils was measured by Schollenberger's method using 1 mol L À1 neutral ammonium acetate. 8) The anion exchange capacity (AEC) was measured as described in the literature. 9) Ammonification was determined as the release of ammonium-N during the waterlogged incubation at 30 C for 28 days.…”

Section: Chemical Analysesmentioning

confidence: 99%

Partitioning of¹⁴C into Solid, Liquid, and Gas Phases in Various Paddy Soils in Japan

Ishii¹,

Koiso²,

Takeda³

et al. 2010

Journal of Nuclear Science and Technology

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The partitioning ratios of 14 C in solid, liquid, and gas phases were determined by batch sorption tests using 97 paddy soil samples. Each of the soil samples was suspended in deionized water containing [1, 2-14 C] sodium acetate and shake-incubated for 7 days. More than 65% of the spiked 14 C was released into the air, approximately 30% was partitioned into the solid phase, and the 14 C remaining in the liquid phase was only a few percent. These results suggested that if the 14 C incorporated into acetate migrated from a TRU repository site to paddy fields, most of the 14 C would be released into the air and the rest would be partitioned into the soil phase. It is likely that microorganisms in the soils are responsible for these partitioning ratios because about 97% of the spiked 14 C remained in the liquid phase in the microorganism-depleted sample.

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Determination of Exchange Capacity and Exchangeable Bases in Soil—ammonium Acetate Method

Cited by 669 publications

References 0 publications

Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions

Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions

Potassium fertilization and soil diagnostic criteria for forage corn (Zea maysL.) production contributing to lower potassium input in regional fertilizer recommendation

Partitioning of¹⁴C into Solid, Liquid, and Gas Phases in Various Paddy Soils in Japan

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Determination of Exchange Capacity and Exchangeable Bases in Soil—ammonium Acetate Method

Cited by 669 publications

References 0 publications

Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions

Effects of biochar and/or dolomitic limestone application on the properties of Ultisol cropped to maize under glasshouse conditions

Potassium fertilization and soil diagnostic criteria for forage corn (Zea maysL.) production contributing to lower potassium input in regional fertilizer recommendation

Partitioning of14C into Solid, Liquid, and Gas Phases in Various Paddy Soils in Japan

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Partitioning of¹⁴C into Solid, Liquid, and Gas Phases in Various Paddy Soils in Japan