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Despite the large number of papers and books published on soil organic matter (humus), our knowledge of the subject is still very limited, as is our knowledge of humic acid. The author of this book began to study humus at the end of the 1940s and continued until 1984 when he retired from Nagoya University. With the intention of establishing a systematic understanding of soil organic matter, he has compiled facts and a discussion of humus based on his extensive experimental results during the past 40 years.In this book, humic acids are classified into A, B, Rp and P types, based on th

Humus --- Humic acid --- Acides humiques --- Humus. --- Soils --- Mold, Vegetable --- Mould, Vegetable --- Muck --- Organic matter in soil --- Soil organic matter --- Vegetable mold --- Histosols --- Organic fertilizers --- Compost --- Plant litter --- Humic acid content. --- Organic matter --- Composition --- Soil chemistry

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More and more civil engineering constructions are being built on soft soils. As areas with better foundations are used up the necessity to be able to build structures on soft soils increases. The most troublesome of soft soils are organic soils due mainly to their high compressibility (much higher than in mineral soils), and also their very low shear strength. The large diversity of organic soils with respect to their origin as well as their properties make classification, testing, and engineering prediction of behaviour, very difficult. For this reason, engineers try, in general, to avoid c

Earth Sciences --- General and Others --- Embankments. --- Histosols. --- Soil mechanics --- Soil mechanics. --- Soil engineering --- Soils --- Soils (Engineering) --- Geotechnical engineering --- Mechanics --- Foundations --- Soil physics --- Folisols --- Organic soils --- Earthwork --- Fills (Earthwork) --- Hydraulic structures --- Slopes (Soil mechanics)

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Soil Organic Matter

Pedology --- Humus --- Humus. --- Soil chemistry. --- 631.417 --- #ABIB:altk --- 631.417 Organic chemistry of soil --- Organic chemistry of soil --- Mold, Vegetable --- Mould, Vegetable --- Muck --- Organic matter in soil --- Soil organic matter --- Soils --- Vegetable mold --- Histosols --- Organic fertilizers --- Compost --- Plant litter --- Organic matter --- Soil science. --- Pedology (Soil science) --- Agriculture --- Earth sciences

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Soil biochemistry --- Soil dynamics --- Humification --- Humus --- Soil structure --- Humification. --- Humus. --- Soil biochemistry. --- Soil dynamics. --- Soil structure. --- Soil aggregates --- Soil morphology --- Structural aggregate --- Soil physics --- Dynamics, Soil --- Soil mechanics --- Biochemistry --- Soil chemistry --- Mold, Vegetable --- Mould, Vegetable --- Muck --- Organic matter in soil --- Soil organic matter --- Soils --- Vegetable mold --- Histosols --- Organic fertilizers --- Compost --- Plant litter --- Biodegradation --- Soil formation --- Humus formation --- Organic matter --- Formation

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Biomathematics. Biometry. Biostatistics --- Fertilité du sol --- soil fertility --- Matière organique --- organic matter --- Cycle biogéochimique --- cycling --- Modèle --- Models --- Expérimentation au champ --- Field experimentation --- design --- Analyse de réseau --- Network analysis --- Méthode statistique --- Statistical methods --- Humus --- Mathematical models --- Evaluation --- Congresses --- Report --- Soils --- Biochemistry --- mest --- organische stof --- organische meststoffen --- bodem --- bodemchemie --- Kunstmeststoffen, bemesting --- Bodemchemie --- Mold, Vegetable --- Mould, Vegetable --- Muck --- Organic matter in soil --- Soil organic matter --- Vegetable mold --- Histosols --- Organic fertilizers --- Compost --- Plant litter --- Organic matter --- Reseau