Biblioteca Digital

157 resultados para fertility of soil

Effects of soil erosion on soil and land degradation in red soil region of china

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Forms and transformation of soil phosphorus and the effective application of...

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History of soil science in China

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

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Secondary alkalization of soil in Huang-Huai-Hai plain

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Effects of soil erosion on soil and land degradation in red soil region of china

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Forms and transformation of soil phosphorus and the effective application of...

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Formation of soil aggregates in cultivated red earth

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The processes and regionalization of soil salinization and alkalization in China

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On the content and characteristies of soil organic matter in south China

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Effect of soil pH on P-adsorption by several typical red soil groups

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Study on bearing capacity of soil erosion in south China

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Variations in natural nitrogen-15 abundance of soil nitrogen

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Effects of varying irrigation water quality on hydraulic properties of soil

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Studies on character of soil-forming conditions and features of solonchak in north and south piedmont plain of the Tianshan mountains

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