912 resultados para Qianlong, Emperor of China, 1711-1799

Cultivation and application of green manure in paddy fields of china

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Effect of nitrapyrin on the inhibition of nitrification in some paddy soils of China

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The status of microelements in relation to crop production in paddy soils of China Ⅲ.zine

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The status of microelements in relation to crop production in paddy soils of China:II.molybdenum

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The status of microelements in relation to crop production in paddy soils of China I.boron

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Effect of irrigation and drainage on the salt water dynamics in coastal saline soil arcas of China and its utilization

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Nitrification,denitrification and mechanisms of N loss in paddy soils Taihu region of China

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Nitrogen management of rainfed agriculture in tropical and subtropical regions of China

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Characteristics of principal weathering types by the geochemistry of water from red soil region of China

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

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Surface chemistry properties of colloid in the main soil of China

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Two rare earth element-La and Ce in some tropical and subtropical soil of China

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Fractionation and availability of inorganic phosphorus in calcareous soils of China

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Data standardization on ecology, resources and environment of china

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Using remote sensing techniques to study land use in the subtropical region of China

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