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Journal Article 1976

Autor: Gallez, A. Juo, A.S.R. Herbillon, A.

Specific surface area and surface charge characteristics of some Alfisols and Ultisols from Nigeria were studied. Specific surface are measured by ethylene glycole retention was generally 2 to 3 times greater than the specific surface area measured by N2 adsorption for both surface and subsoil sa...

Enlace original: https://cgspace.cgiar.org/handle/10568/80817

Investigación en Agricultura
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Gallez, A. ,  Juo, A.S.R. ,  Herbillon, A. ,  [Surface and charge characteristics of selected soils in the tropics] ,  Surface and charge characteristics of selected soils in the tropics
Journal Article 1979

Autor: Juo, A.S.R. Kamprath, E.J.

The reactive Al pool in selected Ultisols, Oxisols, and Histosols from Africa, South America, and North Carolina was estimated by extraction with 1N CuCl2. The Al-saturated clay minerals with and without interlayered hydroxy-Al were used to compare the extractability of Al by 1N CuCl2 and 1N KCl....

Enlace original: https://cgspace.cgiar.org/handle/10568/81277

Investigación en Agricultura
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Juo, A.S.R. ,  Kamprath, E.J. ,  [Copper chloride as an extractant for estimating the potentially reactive aluminum pool in acid soils] ,  Copper chloride as an extractant for estimating the potentially reactive aluminum pool in acid soils
Manual 1978

Autor: Juo, A.S.R.
Enlace original: https://cgspace.cgiar.org/handle/10568/97963

Investigación en Agricultura
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Juo, A.S.R. ,  [Selected methods for soil and plant analysis: IITA manual series, No. 1] ,  Selected methods for soil and plant analysis: IITA manual series, No. 1
Journal Article 1978

Autor: Juo, A.S.R. Kang, B.T.

The initial effectiveness of two rock phosphate samples from Morocco (MRP) and North Carolina (NCRP) was compared with concentrated superhposphate (CSP) in greenhouse using two Alfisols and one Ultisol from southern Nigeria. Under similar pH condition (pH 6), the two rock phosphates were more ef...

Enlace original: https://cgspace.cgiar.org/handle/10568/80930

Investigación en Agricultura
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Juo, A.S.R. ,  Kang, B.T. ,  [Availability and transformation of rock phosphates in three forest soils from southern Nigeria] ,  Availability and transformation of rock phosphates in three forest soils from southern Nigeria
Journal Article 1980

Autor: Friesen, Dennis K. Juo, A.S.R. Miller, M.H.

Interactions of lime, phosphorus (P), and zinc (Zn) in two coarse-textured Ultisols from southeastern Nigeria were examined by means of factorial soil incubation and phosphate sorption experiments. In both soils, liming reduced exchangeable aluminum (Al) saturation from 45% to < 5% at pH 5.0 and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/81117

Investigación en Agricultura
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Friesen, Dennis K. ,  Juo, A.S.R. ,  Miller, M.H. ,  [Liming and lime-phosphorus-zinc interactions in two Nigerian Ultisols: I. Interactions in the soil] ,  Liming and lime-phosphorus-zinc interactions in two Nigerian Ultisols: I. Interactions in the soil
Journal Article 1979

Autor: Pleysier, J.L. Juo, A.S.R. Herbillon, A.J.

Cation exchange equilibria in an acid Ultisol profile involving K-Al, Ca-Al, K-Ca, Na-K, and Na-Ca exchanges were studied. Selectivity coefficients, surface activity coefficients and free energy changes were computed using the thermodynamic formulations. In exchange equilibria involving Al, the ...

Enlace original: https://cgspace.cgiar.org/handle/10568/81282

Investigación en Agricultura
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Pleysier, J.L. ,  Juo, A.S.R. ,  Herbillon, A.J. ,  [Ion exchange equilibria involving aluminum in a kaolinitic Ultisol] ,  Ion exchange equilibria involving aluminum in a kaolinitic Ultisol
Journal Article 1978

Autor: Juo, A.S.R. Oginni, O.O.

Adsorption of paraquat (1:1′-dimethyl 4:4′-bipyridylium chloride) by six common soil types from southern Nigeria was studied. Adsorption data conformed with linear Langmuir isotherm. Adsorption maximum (b) calculated from the Langmuir equation ranged from 1,200 to 7,500 µg/g of soil. The iron oxi...

Enlace original: https://cgspace.cgiar.org/handle/10568/81261

Investigación en Agricultura
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Juo, A.S.R. ,  Oginni, O.O. ,  [Adsorption and desorption of paraquat in acid tropical soils] ,  Adsorption and desorption of paraquat in acid tropical soils
Journal Article 1991

Autor: Eshett, E.T. Ay, P. Omueti, J.A.I. Juo, A.S.R.

En Ikom, Nigeria del Sudeste, se realizó en el año de 1981/82 un análisis en campo de sistemas de cultivo orientados al cacao en suelos basálticos. El objetivo fue elaborar las principales características del sistema de producción y sus limitaciones. El sistema se realiza en dos grupos de product...

Enlace original: https://cgspace.cgiar.org/handle/10568/101768

Investigación en Agricultura
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Eshett, E.T. ,  Ay, P. ,  Omueti, J.A.I. ,  Juo, A.S.R. ,  [A cocoabased cropping system on basaltic soils (typic tropohumult) in southeastern Nigeria] ,  A cocoabased cropping system on basaltic soils (typic tropohumult) in southeastern Nigeria
Journal Article 1992

Autor: Wong, M.T.F. Kruijs, A.C.M.B. van der Juo, A.S.R.
Enlace original: https://cgspace.cgiar.org/handle/10568/103280

Investigación en Agricultura
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Wong, M.T.F. ,  Kruijs, A.C.M.B. van der ,  Juo, A.S.R. ,  [Leasing loss of calcium, magnessium potassium and nitrate derived from soil, and fertilizers as influence by urea applied to undisturbed lysemeters southeast Nigeria] ,  Leasing loss of calcium, magnessium potassium and nitrate derived from soil, and fertilizers as influence by urea applied to undisturbed lysemeters southeast Nigeria

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