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1996
The addition of organic manure not only maintains but even improves soil fertility and, from earliest times, humus has been recognized as one of the major natural resources for agricultural purpose. In the absence of animal dung the value of green manure was recognized by the ancient Chinese (Jiao, 1983), while the Romans systematically used animal ...
NARDI, SERENELLA +2 more
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The addition of organic manure not only maintains but even improves soil fertility and, from earliest times, humus has been recognized as one of the major natural resources for agricultural purpose. In the absence of animal dung the value of green manure was recognized by the ancient Chinese (Jiao, 1983), while the Romans systematically used animal ...
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Genesis of humus B horizons in hydromorphic humus podzols
Nature, 1983A distinctive podzol B horizon, characterized by accumulated humus, low-iron content, lateral uniformity in appearance and composition and frequently hard cementation, develops at the top of the water table in quartz sands on coastal plains in the subtropics and tropics.
V. C. Farmer +2 more
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Plant and Soil, 1984
A scheme on humus formation has been proposed. This is as follows: Lignin/carbohydrates, the chief sources of C for the microorganisms are first broken down by extracellular enzymes into smaller units. Soluble units are absorbed into the microbial cell where part of them are converted to phenols/quinones.
Chandrika Varadachari, Kunal Ghosh
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A scheme on humus formation has been proposed. This is as follows: Lignin/carbohydrates, the chief sources of C for the microorganisms are first broken down by extracellular enzymes into smaller units. Soluble units are absorbed into the microbial cell where part of them are converted to phenols/quinones.
Chandrika Varadachari, Kunal Ghosh
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1980
Starting with rock, water, and air, only the blue-green algae and the purple bacteria are able to put together a viable combination of C, H, O, and N atoms in the form of biomass. The higher plants assimilate carbon dioxide of the air but depend on microbes to supply available nitrogen.
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Starting with rock, water, and air, only the blue-green algae and the purple bacteria are able to put together a viable combination of C, H, O, and N atoms in the form of biomass. The higher plants assimilate carbon dioxide of the air but depend on microbes to supply available nitrogen.
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1998
Soil humus may be defined as the product of transformation of plant and animal remains which bear no morphological resemblances to the materials from which they were derived (Kononova 1975; Hayes and Swift 1978). The predominant part of organic material in surface waters is normally allochthonously derived. The material is produced within the catchment
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Soil humus may be defined as the product of transformation of plant and animal remains which bear no morphological resemblances to the materials from which they were derived (Kononova 1975; Hayes and Swift 1978). The predominant part of organic material in surface waters is normally allochthonously derived. The material is produced within the catchment
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The Journal of Agricultural Science, 1921
It was early noticed that soil on treatment with a solution of an alkali yielded a dark coloured solution which gave a black flocculent precipitate on acidification. Decomposing vegetable matter behaved in a similar way.
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It was early noticed that soil on treatment with a solution of an alkali yielded a dark coloured solution which gave a black flocculent precipitate on acidification. Decomposing vegetable matter behaved in a similar way.
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Estimating the synergistic formation of humus by abiotic and biotic pathways during composting
Journal of Cleaner Production, 2022Junqiu Wu, Haishi Qi, Caihong Song
exaly