997 resultados para soil column

Fate of urea nitrogen applied to rape grown on a red soil and efficiency of urea in raising yield

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Sustainable land use in hilly red soil region of southeast china

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Improvement of soil physical properties with soil condition

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The availability of the nonhydorolyzable soil nitrogen

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Electrochemical Methods in soil and water research

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Characteristies of soil acidity of paddy soil in relation to rice growth

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K supplying power and fertilizer requirement of the main rice soil of china

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Environmental acid rain-in-duced problems in soil and groundwater and management strategies in China mainland

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Mineral composition of soil colloids and its bearing on the genesis and classifi

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On the status of soil potassium and the sequence of transformation of potassiumb

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Boron-dificient soil and their distribution in china

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Soil and water management in farming systems with flooded rice

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Soil map of china

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The processes and regionalization of soil salinization and alkalization in china

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Chemical characteristies of the great soil groups of china

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