489 resultados para EARTH-IONOSPHERE CAVITY

Preliminary study on monitoring of annual soil erosion loss in red earth region

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Rare earth element-La and Ce in some tropical and subtropical soils of China

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Tillage problems of paddy soils deried from red earth in hilly region

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Adsorption and desorption of exogenous rare element in soils :I.rate and form of rrare earth elements sorbed

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Leaching of fertilizer ions in a red earth from repacked soil columns:I.leaching of calcium,magnesium and potassium

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Rare earth elements in soils

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Forms of rare earth elements in soils :II.differentiation of rare earth elements

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Forms of rare earth elements in soils: distribution

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

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Effect of organic menure on phosphors adsorption-desorption and availability in paddy soil derived from red earth

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Tillage problems of paddy soils derived from red earth in hilly regions

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The effects of rare earth elements on growth of crops

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Effectiveness of partially acidulated phosphate rock in red earth area of china

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Content and distribution of rate earth elements in slils of Ching

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Element distribution in soils on red earth-hill landscape in subtropical zone of

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