Resultados de búsqueda - "clay"

Evidencing overwinter loss of residual organic and clay-fixed nitrogen from spring-applied, 15N-labelled pig slurry por Chantigny, Martin H., Angers, Denis A., Rochette, Philippe, Pomar, Candido, Pelster, David E.

Materias: “…clay…”
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A comparison of the contributions of clay, silt and organic matter to the effective CEC of soils of subSaharan Africa por Asadu, C., Diels, J., Vanlauwe, Bernard

Materias: “…clay…”
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La construction et lentretien des routes dans les stations experimentales: Guide de recherche de Iiita No. 20 por Couper, D.C.

Materias: “…clay…”
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A clay suspension stability end point titration method for measuring cation exchange capacity of soils por Pleysier, J.L., Janssens, J., Cremers, A.

Materias: “…clay…”
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Using clay based materials as a soil improvement strategy por Ruaysoongnern, Sawaeng, Noble, A.D.

Materias: “…clay…”
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New sources and stability of resistance to aphids in cowpea germplasm across locations in Uganda por Kityo, R., Odoi, J.B., Ozimati, A., Dramadri, I.O., Agaba, R., Ongom, P.O., Nampala, P., Edema, R., Karungi, J., Gibson, P., Rubaihayo, P.R.

Materias: “…clay soils…”
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Clay Mineralogical and Ammonium Fixation Characteristics of Some Tropical Upland Rice Soils por Bajwa, M.I.

Materias: “…clay mineralogical…”
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Effect of Soil Clay Mineralogy on the Efficiency of Ammonium Sulfate in Flooded Rice por Bajwa, MI

Materias: “…soil clay mineralogy…”
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Extraction of potassium from some kaolinitic soils of the tropics por Pleysier, J.L., Janssens, J., Cremers, A.

Materias: “…clay soils…”
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The joint project on improved management and utilization of dark clay soils in Ethiopia - Retrospects and prospects por Abebe, M., Jutzi, S.C.

Materias: “…clay soils…”
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Physical properties and moisture retention characteristics of some Nigerian soils por Lal, R.

Materias: “…clay minerals…”
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Soil Clay Mineralogies in Relation to Fertility Management: Effect of Soil Clay Mineral Compositions on Potassium Fixation Under Conditions of Wetland Rice Culture por Bajwa, Iqbal

Materias: “…soil clay mineralogies…”
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An Analysis of the Contribution of Organic Matter and Clay to Cation Exchange Capacity of Some Philippine Soils por Sahrawat, K.L.

Materias: “…clay…”
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Improving soils and boosting yields in Thailand por International Water Management Institute

Materias: “…clay…”
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Dependence of unfrozen water content in unsaturated frozen clay soil on initial soil moisture content por Suzuki, Shinji

Materias: “…clay soils…”
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Effect of cassavabased cropping systems on physicochemical properties of soil and earthworm casts in a tropical Alfisol por Hulugalle, N.R., Ezuma, H.C.

Materias: “…clay…”
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Phosphorus losses from agricultural land to surface waters : impact of grazing and trampling by horses por Parvage, Mohammed Masud

Materias: “…clay soil…”

Controls on timescales of soil organic carbon persistence across sub‐Saharan Africa por von Fromm, Sophie F., Doetterl, Sebastian, Butler, Benjamin M., Aynekulu, Ermias, Berhe, Asmeret Asefaw, Haefele, Stephan M., McGrath, Steve P., Shepherd, Keith D., Six, Johan, Tamene, Lulseged, Tondoh, Ebagnerin J., Vågen, Tor‐Gunnar, Winowiecki, Leigh A., Trumbore, Susan E., Hoyt, Alison M.

Materias: “…clay minerals…”
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Physical properties of soils with low activity clays por Lal, R., Greenland, D.J

Materias: “…clay soils…”
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Ion exchange involving calcium-potasium (Ca-K) and calcium-magnesium (Ca-Mg) in soil and organic matter fractions por Cofie, Olufunke O., Pleysier, J.

Materias: “…clay…”
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