Biblioteca Digital

279 resultados para Soil stiffness

Mineral composition of the clay fraction:III.of some main soil groups of china

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Present methods of fertilization for the red soil in south china

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Lime potential of soil as directly measured with two ion-selecctive electrodes

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Rational soil utilization and soil degradetion control in tropical china

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Soil erosion and its control in southers china

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Ecological enironment and integrated exploitation of the red soil hilly region

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The role of nitrate N and potash in quality tobacco productions in red soil in

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Micromorphological study with special reference to soil polygenesis of xizang...

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Proceedingd of symposi m on paddy soil

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