Biblioteca Digital

999 resultados para red pine

Surface chemical properties of red soils and their fertility significance

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

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Role of nitrate N and potash in quality tobaceo production on red soils in south

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A study on crop responses to fertilizer sulphur on red soils in china

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

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K-supplying potential of red earths and rational application of potassium fertil

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Micromorphological study on horizon differentiation of red soil in relation to..

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Micromorphology of red soils in china

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Land-supporting capacity of typical areas in red soil and yellow soil zones

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

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Biogeochemistry of red weathering crust in china

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Problems of soil erosion and soil degradation in the red soil region of china

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Problems of soil erosion and soil degradation in the red sil region of china

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

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Soil erosion and its control in red soil region of china

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