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Humus

Decomposed organic matter. It consists of numerous breakdown substances from plants including SUGARS; AMINO ACIDS; LIGNIN; FATS; and HUMIC SUBSTANCES… 
National Institutes of Health

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Soil

Papers overview

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2003
2003
The 13C NMR study of the molecular structure of humus acids from podzolic and bog-podzolic soils
The structure of humic and fulvic acids from podzolic and bog-podzolic soils was studied. It was found that the development of… 
2001
2001
Leonardite and Fertilizer Levels Influence Tomato Seedling Growth
New Mexico-mined raw leonardite was characterized by comparing it with the International Humic Substances Society's Standard… 
1996
1996
Interactions between tree seedling roots and humus forms in the control of soil C and N cycling
The hypothesis that roots enhance soil-N turnover in humified soil organic matter (SOM) (mull) but not in lignified SOM (mor) was… 
1994
1994
Humus form characteristics in relation to undergrowth vegetation in a Pinus sylvestris forest.
On a determine les quantites et les proprietes chimiques de la matiere ectorganique sous differentes especes de sous-bois dans… 
1989
1989
Two types of chemolithotrophic nitrification in acid heathland humus
The nature of nitrification in the organic horizons (FH) of two heathland soils was studied. Two types of chemolithotrophic… 
1983
1983
Etude de la matière organique de différentes fractions granulométriques d'un sol sableux tropical. Effet d'un amendement organique (compost)
Un fractionnement granulometrique du sol par tamisages successifs a sec et sous eau a 2000, 200 et 50 μm a ete opere. Pour les… 
1970
1970
Non-exchangeable binding of ammonium and amino nitrogen by Norway spruce raw humus
SummaryThe capacity of an originally acid Norway spruce raw humus to fix isotopically labelled ammonium and amino nitrogen in a… 
1961
1961
Resistance of Humus to Decomposition
AN organic soil (previously under wattle followed by grass) containing 8.51 per cent organic carbon (Walkley and Black1… 
1959
1959
The effect of extracted humus substances on growth of tomato plants
SouhrnJednotlivé složky humusu — alkoholický extrakt, huminové kyseliny a fulvokyseliny — postupně isolované z kompostové zahradn… 
Highly Cited
1949
Highly Cited
1949
The Effect of Quantity of Plant Material Added to Soil on its Rate of Decomposition
NORMAL additions of plant residues and manures to soils seldom exceed 2 tons dry matter per acre. In general the quantity of…