Biblioteca Digital

988 resultados para Forest soils

Natural nitrogen-15 abundance of ammonium nitrogen and fixed ammonium in soils

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Relationship between iron oxides and surface charge characteristies in soils

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Salt-water dynamics in soils:II.Effect of crop planting

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Si,Fe and Mn distribution in rice rhizosphere of red earth and paddy soils

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Specific adsorption of trivalent La,Ce and Y by soils and ferromanganese oxides

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Surface chemical properties of colloides in main soils of China

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Toxicity of Cu and Cd in soils and detoxication by additives

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Zn adsorption by ariable cherge soils in relation to pH

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Zn adsorption by variable charge soils in relation to pH

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Factors affecting senstivity of variable charge soils to acid rain

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A preliminary study on identification of clay minerals in soils with reference to reflectance spectra

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Agronomic potential of partially acidulated rock phosphates in acid soils of subtrophical china

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Geochemical characteristics of soils in islands of south china sea

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Geochemical of soil formation in south china sea islanderistics of soils in islands of south china sea

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Effect of lime nitrogen on the transformation of urea in soils

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